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</style></head><body class="bg-white antialiased"><header class="absolute top-0 inset-x-0 z-40"><nav class="container mx-auto flex items-center justify-between px-6 py-5"><a href="/" class="relative flex items-center" aria-label="AirValue — accueil"><span class="pointer-events-none absolute -inset-x-6 -inset-y-3 rounded-full bg-primary/55 blur-lg" aria-hidden="true"></span><img src="/_astro/logo-airvalue-white.CBEzvecv_ZHtoUP.webp" alt="AirValue" loading="eager" decoding="async" width="260" height="100" class="relative h-11 w-auto"></a><a href="#formulaire" class="btn-cta !py-2.5 !px-5 text-sm">Analyser mon immeuble</a></nav></header><section class="relative bg-primary grid-cadastre overflow-hidden pt-32 pb-16 sm:pt-40 sm:pb-24 px-6"><div class="pointer-events-none absolute -top-24 -right-16 w-[480px] h-[480px] rounded-full opacity-20 blur-3xl" style="background: radial-gradient(circle, hsl(150 55% 45%), transparent 65%)"></div><div class="pointer-events-none absolute -bottom-32 -left-20 w-[400px] h-[400px] rounded-full opacity-15 blur-3xl" style="background: radial-gradient(circle, #eab308, transparent 60%)"></div><div class="container mx-auto max-w-4xl relative z-10"><p class="flex items-center gap-3 text-accent-strong font-semibold text-[11px] sm:text-sm uppercase tracking-[0.2em] mb-6"><span class="inline-block w-10 h-px bg-accent-strong"></span>AirValue, estimation en ligne</p><h1 class="font-display text-4xl sm:text-6xl lg:text-7xl font-bold text-white leading-[1.02] tracking-tight mb-6">Le budget de vos travaux <em class="em-accent">dort</em> sur votre toit.</h1><p class="text-white/60 text-base sm:text-xl max-w-2xl leading-relaxed mb-9">AirValue estime en ligne la valeur du droit à construire de votre immeuble, et révèle ce que votre copropriété peut financer sans appel de fonds. Bientôt disponible pour toute l'Île-de-France.</p><div id="form-hero" class="mb-6"><div class="waitlist-form wf-hero" data-source="hero" data-mode="hero" data-astro-cid-lsxrvkd2><input type="text" name="website" tabindex="-1" aria-hidden="true" autocomplete="off" style="position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none;" data-astro-cid-lsxrvkd2><form class="wf-level1 wf-level1--hero" novalidate aria-label="Inscription liste d'attente - étape 1" data-astro-cid-lsxrvkd2><div class="field-phone" data-astro-cid-lsxrvkd2><label for="phone-l1-hero" class="sr-only" data-astro-cid-lsxrvkd2>Numéro de téléphone</label><div class="flex flex-col sm:flex-row gap-3" data-astro-cid-lsxrvkd2><input type="tel" id="phone-l1-hero" name="phone" placeholder="06 12 34 56 78" autocomplete="tel" class="flex-1 px-4 py-3.5 rounded-full bg-white/10 border border-white/20 text-white placeholder:text-white/40 focus:outline-none focus:border-white/50 focus:bg-white/15 transition text-sm" data-astro-cid-lsxrvkd2><button type="submit" class="btn-cta whitespace-nowrap justify-center text-sm" data-astro-cid-lsxrvkd2>Estimer mon immeuble</button></div></div><div class="field-email" data-astro-cid-lsxrvkd2><label for="email-l1-hero" class="sr-only" data-astro-cid-lsxrvkd2>Adresse email</label><div class="flex flex-col sm:flex-row gap-3" data-astro-cid-lsxrvkd2><input type="email" id="email-l1-hero" name="email" placeholder="votre@email.fr" autocomplete="email" class="flex-1 px-4 py-3.5 rounded-full bg-white/10 border border-white/20 text-white placeholder:text-white/40 focus:outline-none focus:border-white/50 focus:bg-white/15 transition text-sm" data-astro-cid-lsxrvkd2><button type="submit" class="btn-cta whitespace-nowrap justify-center text-sm" data-astro-cid-lsxrvkd2>Estimer mon immeuble</button></div></div><p class="wf-error-l1 text-red-400 text-sm mt-2" style="display:none;" role="alert" aria-live="polite" data-astro-cid-lsxrvkd2></p></form><div class="field-one-step-hero" style="display:none;" data-astro-cid-lsxrvkd2><a href="#formulaire" class="btn-cta" data-astro-cid-lsxrvkd2>Estimer mon immeuble</a></div><div class="wf-level2-wrap" style="display:none;" aria-label="Inscription liste d'attente - étape 2" data-astro-cid-lsxrvkd2><div class="bg-white rounded-3xl border border-line p-6 mt-4 shadow-sm" data-astro-cid-lsxrvkd2><p class="wf-locked-value text-sm font-semibold text-ink mb-4 flex items-center gap-2" style="display:none;" data-astro-cid-lsxrvkd2><span class="text-accent" data-astro-cid-lsxrvkd2>✓</span><span class="wf-locked-text" data-astro-cid-lsxrvkd2></span></p><form class="wf-level2" novalidate data-astro-cid-lsxrvkd2><div class="grid grid-cols-1 sm:grid-cols-2 gap-4 mb-4" data-astro-cid-lsxrvkd2><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="name-hero" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Prénom Nom <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="text" id="name-hero" name="full_name" placeholder="Marie Dupont" autocomplete="name" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="field-phone2" data-astro-cid-lsxrvkd2><label for="phone-l2-hero" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Téléphone <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="tel" id="phone-l2-hero" name="phone2" placeholder="06 12 34 56 78" autocomplete="tel" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="field-email2" data-astro-cid-lsxrvkd2><label for="email-l2-hero" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Email <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="email" id="email-l2-hero" name="email2" placeholder="votre@email.fr" autocomplete="email" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="address-hero" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Adresse de l'immeuble <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="text" id="address-hero" name="building_address" placeholder="12 rue de la Paix, 75001 Paris" autocomplete="street-address" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="role-hero" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Votre rôle <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><select id="role-hero" name="role" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink focus:outline-none focus:border-accent transition text-sm appearance-none cursor-pointer" data-astro-cid-lsxrvkd2><option value="" data-astro-cid-lsxrvkd2>Choisissez votre rôle...</option><option value="syndic_pro" data-astro-cid-lsxrvkd2>Syndic professionnel</option><option value="conseil_syndical" data-astro-cid-lsxrvkd2>Membre du conseil syndical</option><option value="coproprietaire" data-astro-cid-lsxrvkd2>Copropriétaire</option></select></div></div><p class="wf-error-l2 text-red-500 text-sm mb-3" style="display:none;" role="alert" aria-live="polite" data-astro-cid-lsxrvkd2></p><button type="submit" class="btn-cta w-full justify-center text-sm" data-astro-cid-lsxrvkd2>Recevoir mon estimation offerte</button><p class="text-muted text-xs mt-4 text-center leading-relaxed" data-astro-cid-lsxrvkd2>🔒 Données traitées en France, conformes RGPD, jamais revendues.<a href="/politique-de-confidentialite" class="underline hover:text-ink transition" data-astro-cid-lsxrvkd2>Politique de confidentialité</a></p></form></div></div><div class="wf-success" style="display:none;" role="status" aria-live="polite" data-astro-cid-lsxrvkd2><div class="bg-white rounded-3xl border border-line p-8 text-center shadow-sm mt-4" data-astro-cid-lsxrvkd2><img src="/mascotte.png" alt="" class="w-20 h-20 object-contain mx-auto mb-4" aria-hidden="true" data-astro-cid-lsxrvkd2><h3 class="font-display text-2xl font-bold text-ink mb-3" data-astro-cid-lsxrvkd2>Bien reçu !</h3><p class="text-muted text-sm leading-relaxed max-w-sm mx-auto" data-astro-cid-lsxrvkd2>Notre équipe analyse votre immeuble et revient vers vous sous 48 h avec votre estimation. Vous êtes n° <strong class="wf-position text-ink" data-astro-cid-lsxrvkd2>…</strong> sur la liste de lancement d'Île-de-France.</p></div></div></div><script type="module" src="/_astro/WaitlistForm.astro_astro_type_script_index_0_lang.D3U77P-s.js"></script></div><ul class="flex flex-wrap gap-2 mb-12"><li class="bg-white/5 border border-white/10 rounded-full px-4 py-1.5 text-white/70 text-xs font-medium flex items-center gap-2"><span class="w-1.5 h-1.5 rounded-full bg-accent-strong"></span>100 % gratuit</li><li class="bg-white/5 border border-white/10 rounded-full px-4 py-1.5 text-white/70 text-xs font-medium flex items-center gap-2"><span class="w-1.5 h-1.5 rounded-full bg-accent-strong"></span>Sans engagement</li><li class="bg-white/5 border border-white/10 rounded-full px-4 py-1.5 text-white/70 text-xs font-medium flex items-center gap-2"><span class="w-1.5 h-1.5 rounded-full bg-accent-strong"></span>Réponse en 48 h</li></ul><dl class="flex flex-wrap gap-8 sm:gap-14"><div class="flex flex-col"><dt class="text-white/40 text-xs sm:text-sm order-last mt-0.5">de projets financés</dt><dd class="font-display text-3xl sm:text-4xl font-bold text-accent-strong">80 M€</dd></div><div class="flex flex-col"><dt class="text-white/40 text-xs sm:text-sm order-last mt-0.5">immeubles accompagnés</dt><dd class="font-display text-3xl sm:text-4xl font-bold text-accent-strong">+500</dd></div><div class="flex flex-col"><dt class="text-white/40 text-xs sm:text-sm order-last mt-0.5">satisfaction clients</dt><dd class="font-display text-3xl sm:text-4xl font-bold text-accent-strong">4,9/5</dd></div></dl></div></section><section id="vision" class="relative bg-primary px-3 sm:px-6 pb-16 sm:pb-24" data-astro-cid-vt2dg75y><div class="container mx-auto max-w-6xl" data-astro-cid-vt2dg75y><div class="text-center max-w-2xl mx-auto pt-14 pb-10" data-astro-cid-vt2dg75y><p class="text-accent-strong font-semibold text-sm tracking-widest uppercase mb-3" data-astro-cid-vt2dg75y>La plateforme</p><h2 class="font-display text-3xl sm:text-5xl font-bold text-white leading-tight" data-astro-cid-vt2dg75y>Ce que verra votre <em class="em-accent" data-astro-cid-vt2dg75y>syndic</em>.</h2><p class="text-white/50 mt-4" data-astro-cid-vt2dg75y>AirValue analyse chaque immeuble d'Île-de-France : surface créable, valeur du droit à construire, score de potentiel.</p></div><div class="relative rounded-3xl overflow-hidden border border-white/10" data-scene data-astro-cid-vt2dg75y><div class="media relative overflow-hidden" data-astro-cid-vt2dg75y><div class="parallax-bg will-change-transform relative" data-astro-cid-vt2dg75y><img src="/_astro/ville.DLCGtjTQ_xUSOb.webp" srcset="/_astro/ville.DLCGtjTQ_Z2v4Esq.webp 768w, /_astro/ville.DLCGtjTQ_Z3S0oa.webp 1280w, /_astro/ville.DLCGtjTQ_Z1sUmWE.webp 2048w" alt="Vue aérienne d'immeubles haussmanniens à Paris, potentiels de surélévation identifiés par AirValue" sizes="(max-width: 768px) 100vw, 1152px" data-astro-cid-vt2dg75y="true" loading="lazy" decoding="async" width="2156" height="1678" class="w-full h-auto block"><svg class="absolute inset-0 w-full h-full" viewBox="0 0 2156 1678" aria-hidden="true" data-astro-cid-vt2dg75y><g class="wf" data-wf="0" style="color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y><path d="M190 900 L520 860 L520 740 L190 780 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M520 860 L590 950 L590 830 L520 740 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M250 990 L190 900 L190 780 L250 870 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M590 950 L250 990 L250 870 L590 830 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M190 780 L520 740 L590 830 L250 870 Z" fill="currentColor" fill-opacity="0.28" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path></g><g class="wf" data-wf="1" style="color:#eab308" data-astro-cid-vt2dg75y><path d="M1160 910 L1420 880 L1420 770 L1160 800 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1420 880 L1470 960 L1470 850 L1420 770 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1210 990 L1160 910 L1160 800 L1210 880 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1470 960 L1210 990 L1210 880 L1470 850 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1160 800 L1420 770 L1470 850 L1210 880 Z" fill="currentColor" fill-opacity="0.28" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path></g><g class="wf" data-wf="2" style="color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y><path d="M150 1400 L440 1380 L440 1265 L150 1285 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M440 1380 L470 1470 L470 1355 L440 1265 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M180 1490 L150 1400 L150 1285 L180 1375 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M470 1470 L180 1490 L180 1375 L470 1355 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M150 1285 L440 1265 L470 1355 L180 1375 Z" fill="currentColor" fill-opacity="0.28" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path></g><g class="wf" data-wf="3" style="color:hsl(215 10% 60%)" data-astro-cid-vt2dg75y><path d="M1830 1270 L2040 1250 L2040 1160 L1830 1180 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M2040 1250 L2070 1330 L2070 1240 L2040 1160 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1860 1350 L1830 1270 L1830 1180 L1860 1260 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M2070 1330 L1860 1350 L1860 1260 L2070 1240 Z" fill="currentColor" fill-opacity="0.12" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path><path d="M1830 1180 L2040 1160 L2070 1240 L1860 1260 Z" fill="currentColor" fill-opacity="0.28" stroke="currentColor" stroke-width="4.6869565217391305" stroke-linejoin="round" data-astro-cid-vt2dg75y></path></g><g transform="translate(355.5, 845.9411764705883)" data-astro-cid-vt2dg75y><g class="pin" data-step="0" style="color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y><g transform="scale(1.8823529411764706)" data-astro-cid-vt2dg75y><path d="M17 42 L9 30 H25 Z" fill="currentColor" data-astro-cid-vt2dg75y></path><rect x="2" y="2" width="30" height="30" rx="9" fill="currentColor" data-astro-cid-vt2dg75y></rect><circle cx="17" cy="17" r="6" fill="white" data-astro-cid-vt2dg75y></circle></g></g></g><g transform="translate(1283, 855.9411764705883)" data-astro-cid-vt2dg75y><g class="pin" data-step="1" style="color:#eab308" data-astro-cid-vt2dg75y><g transform="scale(1.8823529411764706)" data-astro-cid-vt2dg75y><path d="M17 42 L9 30 H25 Z" fill="currentColor" data-astro-cid-vt2dg75y></path><rect x="2" y="2" width="30" height="30" rx="9" fill="currentColor" data-astro-cid-vt2dg75y></rect><circle cx="17" cy="17" r="6" fill="white" data-astro-cid-vt2dg75y></circle></g></g></g><g transform="translate(278, 1355.9411764705883)" data-astro-cid-vt2dg75y><g class="pin" data-step="2" style="color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y><g transform="scale(1.8823529411764706)" data-astro-cid-vt2dg75y><path d="M17 42 L9 30 H25 Z" fill="currentColor" data-astro-cid-vt2dg75y></path><rect x="2" y="2" width="30" height="30" rx="9" fill="currentColor" data-astro-cid-vt2dg75y></rect><circle cx="17" cy="17" r="6" fill="white" data-astro-cid-vt2dg75y></circle></g></g></g></svg></div><svg class="absolute inset-0 w-full h-full hidden sm:block pointer-events-none" viewBox="0 0 2156 1678" aria-hidden="true" data-astro-cid-vt2dg75y><path class="leader" data-step="0" pathLength="1" d="M346.1 930.2 L289.7 549.7" stroke="white" stroke-opacity="0.5" stroke-width="2.812173913043478" fill="none" data-astro-cid-vt2dg75y></path><path class="leader" data-step="1" pathLength="1" d="M1329.2 940.8 L1691.1 751.1" stroke="white" stroke-opacity="0.5" stroke-width="2.812173913043478" fill="none" data-astro-cid-vt2dg75y></path><path class="leader" data-step="2" pathLength="1" d="M263.9 1470.8 L871.8 1422.3" stroke="white" stroke-opacity="0.5" stroke-width="2.812173913043478" fill="none" data-astro-cid-vt2dg75y></path></svg><div class="legend absolute top-3 right-3 sm:top-4 sm:right-4 bg-primary/70 backdrop-blur rounded-xl p-2.5 sm:p-3 space-y-1 sm:space-y-1.5" data-astro-cid-vt2dg75y><p class="flex items-center gap-2 text-white text-[9px] sm:text-[11px]" data-astro-cid-vt2dg75y><span class="w-2 h-2 sm:w-2.5 sm:h-2.5 rounded-full" style="background:hsl(150 55% 45%)" data-astro-cid-vt2dg75y></span>Potentiel élevé</p><p class="flex items-center gap-2 text-white text-[9px] sm:text-[11px]" data-astro-cid-vt2dg75y><span class="w-2 h-2 sm:w-2.5 sm:h-2.5 rounded-full" style="background:#eab308" data-astro-cid-vt2dg75y></span>Potentiel moyen</p><p class="flex items-center gap-2 text-white text-[9px] sm:text-[11px]" data-astro-cid-vt2dg75y><span class="w-2 h-2 sm:w-2.5 sm:h-2.5 rounded-full" style="background:hsl(215 10% 60%)" data-astro-cid-vt2dg75y></span>Potentiel faible</p></div></div><div class="flex flex-col gap-3 p-3 sm:contents" data-astro-cid-vt2dg75y><div class="card sm:absolute bg-white rounded-2xl shadow-xl p-4 w-full sm:w-60" data-step="0" style="left:3%; top:16%" data-astro-cid-vt2dg75y><p class="font-bold text-xs tracking-wide text-ink" data-astro-cid-vt2dg75y>25 RUE SAINT-CHARLES</p><p class="text-muted text-[11px] mb-2" data-astro-cid-vt2dg75y>75015 PARIS</p><span class="inline-block text-[10px] font-bold px-2 py-0.5 rounded-full mb-2" style="background:color-mix(in srgb, hsl(150 55% 45%) 13%, transparent); color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y>Potentiel élevé</span><p class="text-sm font-semibold text-ink" data-astro-cid-vt2dg75y>+ <span class="count" data-target="560" data-astro-cid-vt2dg75y>0</span> m²</p><p class="text-lg font-display font-bold text-ink" data-astro-cid-vt2dg75y>1,12 M€</p></div><div class="card sm:absolute bg-white rounded-2xl shadow-xl p-4 w-full sm:w-60" data-step="1" style="left:68%; top:28%" data-astro-cid-vt2dg75y><p class="font-bold text-xs tracking-wide text-ink" data-astro-cid-vt2dg75y>18 RUE DE LA CONVENTION</p><p class="text-muted text-[11px] mb-2" data-astro-cid-vt2dg75y>75015 PARIS</p><span class="inline-block text-[10px] font-bold px-2 py-0.5 rounded-full mb-2" style="background:color-mix(in srgb, #eab308 13%, transparent); color:#eab308" data-astro-cid-vt2dg75y>Potentiel moyen</span><p class="text-sm font-semibold text-ink" data-astro-cid-vt2dg75y>+ <span class="count" data-target="420" data-astro-cid-vt2dg75y>0</span> m²</p><p class="text-lg font-display font-bold text-ink" data-astro-cid-vt2dg75y>850 k€</p></div><div class="card sm:absolute bg-white rounded-2xl shadow-xl p-4 w-full sm:w-60" data-step="2" style="left:30%; top:68%" data-astro-cid-vt2dg75y><p class="font-bold text-xs tracking-wide text-ink" data-astro-cid-vt2dg75y>7 RUE DE L'ABBÉ GROULT</p><p class="text-muted text-[11px] mb-2" data-astro-cid-vt2dg75y>75015 PARIS</p><span class="inline-block text-[10px] font-bold px-2 py-0.5 rounded-full mb-2" style="background:color-mix(in srgb, hsl(150 55% 45%) 13%, transparent); color:hsl(150 55% 45%)" data-astro-cid-vt2dg75y>Potentiel élevé</span><p class="text-sm font-semibold text-ink" data-astro-cid-vt2dg75y>+ <span class="count" data-target="320" data-astro-cid-vt2dg75y>0</span> m²</p><p class="text-lg font-display font-bold text-ink" data-astro-cid-vt2dg75y>620 k€</p></div></div></div></div></section><script type="module">var e=document.querySelector(`[data-scene]`);if(e)if(window.matchMedia(`(prefers-reduced-motion: reduce)`).matches)e.querySelectorAll(`.count`).forEach(e=>{e.textContent=e.dataset.target??`0`}),e.classList.add(`play`);else{let t=new IntersectionObserver(n=>{n[0]?.isIntersecting&&(e.classList.add(`play`),t.disconnect(),e.querySelectorAll(`.count`).forEach((e,t)=>{let n=Number(e.dataset.target);setTimeout(()=>{let t=performance.now(),r=i=>{let a=Math.min((i-t)/600,1);e.textContent=String(Math.round(n*(1-(1-a)**3))),a<1&&requestAnimationFrame(r)};requestAnimationFrame(r)},1100+t*900)}))},{threshold:.35});t.observe(e);let n=!1,r=()=>{n=!1;let t=e.getBoundingClientRect(),r=(t.top+t.height/2-innerHeight/2)/innerHeight,i=Math.max(-14,Math.min(14,r*-28));e.style.setProperty(`--pshift`,`${i.toFixed(1)}px`)};addEventListener(`scroll`,()=>{n||(n=!0,requestAnimationFrame(r))},{passive:!0}),r()}</script><section class="bg-cream py-16 sm:py-24 px-6"><div class="container mx-auto max-w-5xl"><p class="text-accent font-semibold text-sm tracking-widest uppercase mb-3">Comment ça marche</p><h2 class="font-display text-3xl sm:text-5xl font-bold leading-tight mb-12">Trois étapes, zéro <em class="em-accent">euro</em> avancé.</h2><ol class="grid grid-cols-1 md:grid-cols-3 gap-6"><li class="bg-white border border-line rounded-2xl p-6"><span class="font-display text-4xl font-bold text-accent-strong/30">01</span><h3 class="font-display text-xl font-bold mt-3 mb-2">Estimez votre immeuble</h3><p class="text-muted text-sm leading-relaxed">Entrez l'adresse, AirValue analyse le potentiel constructible et calcule votre Air Value Score, la surface créable et la valeur du droit à construire.</p></li><li class="bg-white border border-line rounded-2xl p-6"><span class="font-display text-4xl font-bold text-accent-strong/30">02</span><h3 class="font-display text-xl font-bold mt-3 mb-2">Vendez le droit à construire</h3><p class="text-muted text-sm leading-relaxed">Nous achetons le droit de construire sur votre toit et finançons la totalité des études et des travaux. Les fonds sont versés dès le permis purgé, avant le premier coup de pioche.</p></li><li class="bg-white border border-line rounded-2xl p-6"><span class="font-display text-4xl font-bold text-accent-strong/30">03</span><h3 class="font-display text-xl font-bold mt-3 mb-2">Financez vos travaux</h3><p class="text-muted text-sm leading-relaxed">Ravalement, toiture, isolation, ascenseur : la copropriété encaisse et décide. Sans appel de fonds, sans emprunt collectif.</p></li></ol></div></section><section class="bg-white py-16 sm:py-24 px-6"><div class="container mx-auto max-w-5xl"><p class="text-accent font-semibold text-sm tracking-widest uppercase mb-3">Pour votre copropriété</p><h2 class="font-display text-3xl sm:text-5xl font-bold leading-tight mb-12">Ce que vous direz en <em class="em-accent">assemblée</em>.</h2><div class="grid grid-cols-1 sm:grid-cols-2 gap-5"><article class="bg-cream border border-line rounded-2xl p-6"><h3 class="font-display text-lg font-bold mb-2">Des travaux financés sans appel de fonds</h3><p class="text-muted text-sm leading-relaxed">Le produit de la surélévation couvre le ravalement, la toiture, le DPE collectif. Vos copropriétaires ne sortent pas un euro.</p></article><article class="bg-cream border border-line rounded-2xl p-6"><h3 class="font-display text-lg font-bold mb-2">La valeur de chaque lot augmentée</h3><p class="text-muted text-sm leading-relaxed">Un immeuble rénové et surélevé, c'est une valeur patrimoniale renforcée pour tous les lots existants.</p></article><article class="bg-cream border border-line rounded-2xl p-6"><h3 class="font-display text-lg font-bold mb-2">Des charges mutualisées</h3><p class="text-muted text-sm leading-relaxed">Plus de lots dans la copropriété, donc une quote-part de charges qui diminue pour chacun.</p></article><article class="bg-cream border border-line rounded-2xl p-6"><h3 class="font-display text-lg font-bold mb-2">Un dossier clé en main pour votre AG</h3><p class="text-muted text-sm leading-relaxed">Études de faisabilité, urbanisme, structure : tout est pris en charge et présenté pour le vote en assemblée générale.</p></article></div></div></section><section class="bg-primary grid-cadastre py-16 sm:py-24 px-6"><div class="container mx-auto max-w-4xl text-center"><p class="text-accent-strong font-semibold text-sm tracking-widest uppercase mb-3">Qui sommes-nous</p><h2 class="font-display text-3xl sm:text-5xl font-bold text-white leading-tight mb-6">L'expérience de <em class="em-accent">+500 immeubles</em>.</h2><p class="text-white/60 max-w-2xl mx-auto mb-12">AirValue, le guichet unique de la surélévation à Paris et en Île-de-France : 80 M€ de projets financés, une expertise reconnue par les médias nationaux.</p><figure class="bg-white/5 border border-white/10 rounded-2xl p-8 text-left max-w-2xl mx-auto"><blockquote class="text-white/80 leading-relaxed italic">« Président du conseil syndical d'un immeuble en péril dans le 17e, le projet de surélévation nous a permis d'injecter près de 800 000 euros de travaux, et donc de sauver l'immeuble. »</blockquote><figcaption class="text-white/40 text-sm mt-4">Président de conseil syndical, Paris 17e</figcaption></figure></div></section><section id="formulaire" class="bg-cream py-16 sm:py-24 px-6"><div class="container mx-auto max-w-2xl"><h2 class="font-display text-3xl sm:text-4xl font-bold mb-2 text-center">Votre immeuble, en chiffres.</h2><p class="text-muted text-center mb-10">Inscription au lancement prioritaire, estimation offerte sous 48 h.</p><div class="waitlist-form wf-section" data-source="section" data-mode="section" data-astro-cid-lsxrvkd2><input type="text" name="website" tabindex="-1" aria-hidden="true" autocomplete="off" style="position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none;" data-astro-cid-lsxrvkd2><form class="wf-level1 wf-level1--section" novalidate aria-label="Inscription liste d'attente - étape 1" data-astro-cid-lsxrvkd2><div class="field-phone" data-astro-cid-lsxrvkd2><label for="phone-l1-section" class="sr-only" data-astro-cid-lsxrvkd2>Numéro de téléphone</label><div class="flex flex-col sm:flex-row gap-3" data-astro-cid-lsxrvkd2><input type="tel" id="phone-l1-section" name="phone" placeholder="06 12 34 56 78" autocomplete="tel" class="flex-1 px-4 py-3.5 rounded-full bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2><button type="submit" class="btn-cta whitespace-nowrap justify-center text-sm" data-astro-cid-lsxrvkd2>Estimer mon immeuble</button></div></div><div class="field-email" data-astro-cid-lsxrvkd2><label for="email-l1-section" class="sr-only" data-astro-cid-lsxrvkd2>Adresse email</label><div class="flex flex-col sm:flex-row gap-3" data-astro-cid-lsxrvkd2><input type="email" id="email-l1-section" name="email" placeholder="votre@email.fr" autocomplete="email" class="flex-1 px-4 py-3.5 rounded-full bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2><button type="submit" class="btn-cta whitespace-nowrap justify-center text-sm" data-astro-cid-lsxrvkd2>Estimer mon immeuble</button></div></div><p class="wf-error-l1 text-red-400 text-sm mt-2" style="display:none;" role="alert" aria-live="polite" data-astro-cid-lsxrvkd2></p></form><div class="wf-level2-wrap" style="display:none;" aria-label="Inscription liste d'attente - étape 2" data-astro-cid-lsxrvkd2><div class="bg-white rounded-3xl border border-line p-6 mt-4 shadow-sm" data-astro-cid-lsxrvkd2><p class="wf-locked-value text-sm font-semibold text-ink mb-4 flex items-center gap-2" style="display:none;" data-astro-cid-lsxrvkd2><span class="text-accent" data-astro-cid-lsxrvkd2>✓</span><span class="wf-locked-text" data-astro-cid-lsxrvkd2></span></p><form class="wf-level2" novalidate data-astro-cid-lsxrvkd2><div class="grid grid-cols-1 sm:grid-cols-2 gap-4 mb-4" data-astro-cid-lsxrvkd2><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="name-section" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Prénom Nom <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="text" id="name-section" name="full_name" placeholder="Marie Dupont" autocomplete="name" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="field-phone2" data-astro-cid-lsxrvkd2><label for="phone-l2-section" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Téléphone <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="tel" id="phone-l2-section" name="phone2" placeholder="06 12 34 56 78" autocomplete="tel" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="field-email2" data-astro-cid-lsxrvkd2><label for="email-l2-section" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Email <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="email" id="email-l2-section" name="email2" placeholder="votre@email.fr" autocomplete="email" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="address-section" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Adresse de l'immeuble <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><input type="text" id="address-section" name="building_address" placeholder="12 rue de la Paix, 75001 Paris" autocomplete="street-address" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink placeholder:text-muted/60 focus:outline-none focus:border-accent transition text-sm" data-astro-cid-lsxrvkd2></div><div class="sm:col-span-2" data-astro-cid-lsxrvkd2><label for="role-section" class="block text-xs font-semibold text-muted mb-1 uppercase tracking-wide" data-astro-cid-lsxrvkd2>Votre rôle <span aria-hidden="true" class="text-accent-strong" data-astro-cid-lsxrvkd2>*</span></label><select id="role-section" name="role" class="w-full px-4 py-3 rounded-xl bg-white border border-line text-ink focus:outline-none focus:border-accent transition text-sm appearance-none cursor-pointer" data-astro-cid-lsxrvkd2><option value="" data-astro-cid-lsxrvkd2>Choisissez votre rôle...</option><option value="syndic_pro" data-astro-cid-lsxrvkd2>Syndic professionnel</option><option value="conseil_syndical" data-astro-cid-lsxrvkd2>Membre du conseil syndical</option><option value="coproprietaire" data-astro-cid-lsxrvkd2>Copropriétaire</option></select></div></div><p class="wf-error-l2 text-red-500 text-sm mb-3" style="display:none;" role="alert" aria-live="polite" data-astro-cid-lsxrvkd2></p><button type="submit" class="btn-cta w-full justify-center text-sm" data-astro-cid-lsxrvkd2>Recevoir mon estimation offerte</button><p class="text-muted text-xs mt-4 text-center leading-relaxed" data-astro-cid-lsxrvkd2>🔒 Données traitées en France, conformes RGPD, jamais revendues.<a href="/politique-de-confidentialite" class="underline hover:text-ink transition" data-astro-cid-lsxrvkd2>Politique de confidentialité</a></p></form></div></div><div class="wf-success" style="display:none;" role="status" aria-live="polite" data-astro-cid-lsxrvkd2><div class="bg-white rounded-3xl border border-line p-8 text-center shadow-sm mt-4" data-astro-cid-lsxrvkd2><img src="/mascotte.png" alt="" class="w-20 h-20 object-contain mx-auto mb-4" aria-hidden="true" data-astro-cid-lsxrvkd2><h3 class="font-display text-2xl font-bold text-ink mb-3" data-astro-cid-lsxrvkd2>Bien reçu !</h3><p class="text-muted text-sm leading-relaxed max-w-sm mx-auto" data-astro-cid-lsxrvkd2>Notre équipe analyse votre immeuble et revient vers vous sous 48 h avec votre estimation. Vous êtes n° <strong class="wf-position text-ink" data-astro-cid-lsxrvkd2>…</strong> sur la liste de lancement d'Île-de-France.</p></div></div></div></div></section><section class="bg-white py-16 sm:py-24 px-6"><div class="container mx-auto max-w-3xl"><div class="flex items-center gap-4 mb-10"><img src="/mascotte.png" alt="" class="w-12 h-12 object-contain" id="faq-mascot"><h2 class="font-display text-3xl sm:text-4xl font-bold">Vos questions</h2></div><details class="group border-b border-line py-4"><summary class="cursor-pointer list-none flex justify-between items-center font-semibold">Quelles sont les chances que mon immeuble soit éligible ?<span aria-hidden="true" class="text-accent transition-transform group-open:rotate-45 text-xl leading-none">+</span></summary><p class="text-muted text-sm leading-relaxed mt-3">La majorité des immeubles d'Île-de-France disposent d'un potentiel de surélévation. L'éligibilité dépend du PLU, de la structure existante et des contraintes architecturales. C'est exactement ce qu'AirValue analyse pour vous.</p></details><details class="group border-b border-line py-4"><summary class="cursor-pointer list-none flex justify-between items-center font-semibold">Y a-t-il des coûts pour l'étude ou la réalisation ?<span aria-hidden="true" class="text-accent transition-transform group-open:rotate-45 text-xl leading-none">+</span></summary><p class="text-muted text-sm leading-relaxed mt-3">Non, aucun. L'estimation est gratuite et sans engagement. En cas de projet, les études de faisabilité, les démarches administratives et les travaux sont intégralement pris en charge et financés.</p></details><details class="group border-b border-line py-4"><summary class="cursor-pointer list-none flex justify-between items-center font-semibold">Sous quel délai ai-je une réponse ?<span aria-hidden="true" class="text-accent transition-transform group-open:rotate-45 text-xl leading-none">+</span></summary><p class="text-muted text-sm leading-relaxed mt-3">Votre estimation vous est retournée sous 48 h ouvrées. Notre équipe analyse le potentiel de votre immeuble et vous recontacte avec les résultats.</p></details><details class="group border-b border-line py-4"><summary class="cursor-pointer list-none flex justify-between items-center font-semibold">Comment ça se passe avec l'assemblée générale ?<span aria-hidden="true" class="text-accent transition-transform group-open:rotate-45 text-xl leading-none">+</span></summary><p class="text-muted text-sm leading-relaxed mt-3">Le projet est présenté et voté en AG. Nous préparons un dossier complet (faisabilité, valorisation, planning) pour que le conseil syndical et le syndic disposent de tous les éléments.</p></details><details class="group border-b border-line py-4"><summary class="cursor-pointer list-none flex justify-between items-center font-semibold">Quand les fonds sont-ils versés à la copropriété ?<span aria-hidden="true" class="text-accent transition-transform group-open:rotate-45 text-xl leading-none">+</span></summary><p class="text-muted text-sm leading-relaxed mt-3">La totalité du règlement est versée à la signature de l'acte notarié, une fois le permis de construire obtenu et purgé de tout recours. Donc avant même le démarrage des travaux.</p></details></div></section><footer class="bg-primary text-white/50 text-sm py-12 px-6"><div class="container mx-auto max-w-5xl flex flex-col sm:flex-row justify-between gap-6"><div><img src="/_astro/logo-airvalue-white.CBEzvecv_17Wees.webp" alt="AirValue" loading="lazy" decoding="async" width="264" height="101" class="h-12 w-auto mb-3"><p>L'audit de surélévation d'immeuble</p><p>115 rue Saint-Dominique, 75007 Paris</p></div><nav class="flex flex-col gap-2"><a href="/mentions-legales" class="hover:text-white">Mentions légales</a><a href="/politique-de-confidentialite" class="hover:text-white">Politique de confidentialité</a></nav></div><div class="container mx-auto max-w-5xl border-t border-white/10 mt-10 pt-6 text-xs text-white/35"><p>Site réalisé par <a href="https://abc-optim.com" target="_blank" rel="noopener noreferrer" class="underline hover:text-white">abc-optim.com</a></p></div></footer></body></html>