{"id":63981,"date":"2025-12-05T11:30:00","date_gmt":"2025-12-05T10:30:00","guid":{"rendered":"https:\/\/www.smovin.app\/?page_id=63981"},"modified":"2025-12-02T10:16:04","modified_gmt":"2025-12-02T09:16:04","slug":"comparatif-indices-immobiliers-france-2025","status":"publish","type":"page","link":"https:\/\/www.smovin.app\/fr-fr\/comparatif-indices-immobiliers-france-2025\/","title":{"rendered":"Comparatif des indices immobiliers en France : ILC, ICC, ILAT"},"content":{"rendered":"\n<p>Pour les <strong>bailleurs<\/strong>, <strong>investisseurs<\/strong> ou <strong>gestionnaires<\/strong>, bien comprendre les <strong>indices immobiliers<\/strong> est essentiel pour s\u00e9curiser ses contrats, anticiper <strong>l\u2019\u00e9volution des loyers<\/strong> et respecter la r\u00e9glementation.<\/p>\n\n\n\n<p>La r\u00e9vision des <strong>loyers commerciaux<\/strong> repose sur plusieurs indices de r\u00e9f\u00e9rence : l\u2019<strong>ILC<\/strong> (Indice des Loyers Commerciaux), l\u2019<strong>ICC<\/strong> (Indice du Co\u00fbt de la Construction) et l\u2019<strong>ILAT<\/strong> (Indice des Loyers des Activit\u00e9s Tertiaires).<\/p>\n\n\n\n<p>Vous trouverez dans cet article toutes les informations concernant le r\u00f4le de chaque indice, leurs diff\u00e9rences, leurs usages en 2025 et comment les utiliser concr\u00e8tement pour calculer <a href=\"https:\/\/www.smovin.app\/fr-fr\/revision-bail-habitation\/\">une r\u00e9vision de loyer<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"comprendre-les-trois-indices-immobiliers-ilc-ilat-icc\"><a href=\"#comprendre-les-trois-indices-immobiliers-ilc-ilat-icc\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Comprendre les trois indices immobiliers : ILC, ILAT, ICC<\/h2>\n\n\n\n<p>En <strong>France<\/strong>, trois indices principaux coexistent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ILC<\/strong> (Indice des Loyers Commerciaux) \u2013 <strong>commerces<\/strong> et <strong>artisanat<\/strong><\/li>\n\n\n\n<li><strong>ILAT<\/strong> (Indice des Loyers des Activit\u00e9s Tertiaires) \u2013 <strong>bureaux<\/strong>, <strong>services<\/strong>, <strong>professions lib\u00e9rales<\/strong><\/li>\n\n\n\n<li><strong>ICC<\/strong> (Indice du Co\u00fbt de la Construction) \u2013 utilis\u00e9 pour <a href=\"https:\/\/www.smovin.app\/fr-fr\/articles-bail-commercial\/\">les baux commerciaux<\/a> sign\u00e9s avant le 1\u1d49\u02b3 septembre 2014<\/li>\n<\/ul>\n\n\n\n<p>Le choix de l\u2019indice d\u00e9pend donc de <strong>la nature du bail<\/strong> et de <strong>l\u2019activit\u00e9 exerc\u00e9e<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"lilc-lindice-dedie-aux-commerces-de-detail\"><a href=\"#lilc-lindice-dedie-aux-commerces-de-detail\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>L\u2019ILC : l\u2019indice d\u00e9di\u00e9 aux commerces de d\u00e9tail<\/h3>\n\n\n\n<p>L\u2019<strong>ILC<\/strong> est aujourd\u2019hui l\u2019indice le plus utilis\u00e9 pour <strong>les baux commerciaux<\/strong> classiques : boutiques, artisans, restaurants, bars, etc. Il se compose de trois \u00e9l\u00e9ments :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l\u2019indice des <strong>prix \u00e0 la consommation<\/strong> (IPC)<\/li>\n\n\n\n<li>l\u2019indice du <strong>chiffre d\u2019affaires<\/strong> du commerce<\/li>\n\n\n\n<li>l\u2019indice des <strong>loyers commerciaux<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Cet indice vise \u00e0 lisser la <strong>progression des loyers<\/strong> et \u00e0 \u00e9viter les variations trop fortes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"lilat-lindice-des-loyers-des-activites-tertiaires\"><a href=\"#lilat-lindice-des-loyers-des-activites-tertiaires\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>L\u2019ILAT : l\u2019indice des loyers des activit\u00e9s tertiaires<\/h3>\n\n\n\n<p>L\u2019<strong>ILAT<\/strong> concerne les <strong>professions lib\u00e9rales<\/strong>, les <strong>bureaux<\/strong>, les <strong>activit\u00e9s tertiaires<\/strong> en g\u00e9n\u00e9ral. Il \u00e9volue principalement en fonction :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>de <strong>l\u2019inflation<\/strong><\/li>\n\n\n\n<li>de la <strong>conjoncture du secteur tertiaire<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"licc-un-indice-historique-utilise-depuis-1953\"><a href=\"#licc-un-indice-historique-utilise-depuis-1953\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>L\u2019ICC : un indice historique utilis\u00e9 depuis 1953<\/h3>\n\n\n\n<p>L\u2019<strong>ICC<\/strong> mesurait \u00e0 l&#8217;origine l&#8217;\u00e9volution du <strong>co\u00fbt de la construction<\/strong>. Longtemps utilis\u00e9 pour les baux commerciaux, il a \u00e9t\u00e9 progressivement \u00e9cart\u00e9 au profit de l\u2019<strong>ILC<\/strong> et de l\u2019<strong>ILAT<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"quel-indice-choisir-selon-votre-bail\"><a href=\"#quel-indice-choisir-selon-votre-bail\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Quel indice choisir selon votre bail ?<\/h2>\n\n\n\n<p>Le choix de l\u2019indice applicable d\u00e9pend directement du<strong> type d\u2019activit\u00e9 exerc\u00e9e<\/strong> par le locataire et des clauses pr\u00e9vues dans le bail.&nbsp;<\/p>\n\n\n\n<p>Pour <strong>les<\/strong> <strong>commerces de d\u00e9tail<\/strong>, l\u2019Indice des Loyers Commerciaux (<strong>ILC<\/strong>) est aujourd\u2019hui la r\u00e9f\u00e9rence la plus courante : il offre une <strong>\u00e9volution mod\u00e9r\u00e9e<\/strong> et mieux adapt\u00e9e aux r\u00e9alit\u00e9s \u00e9conomiques du <strong>commerce de proximit\u00e9<\/strong>.&nbsp;<\/p>\n\n\n\n<p>\u00c0 l\u2019inverse, les <strong>professionnels du secteur tertiaire<\/strong> (les cabinets de conseil, les entreprises de services ou les bureaux) utilisent g\u00e9n\u00e9ralement l\u2019Indice des Loyers des Activit\u00e9s Tertiaires (<strong>ILAT<\/strong>), qui suit davantage la <strong>dynamique de l\u2019inflation<\/strong> et garantit une r\u00e9vision coh\u00e9rente avec l\u2019activit\u00e9.&nbsp;<\/p>\n\n\n\n<p>Quant \u00e0 l\u2019Indice du Co\u00fbt de la Construction (<strong>ICC<\/strong>), il tend \u00e0 \u00eatre beaucoup <strong>moins utilis\u00e9<\/strong>, car plus volatil et <strong>moins repr\u00e9sentatif<\/strong> de l\u2019\u00e9conomie actuelle ; on le retrouve surtout dans d\u2019anciens baux qui n\u2019ont pas encore \u00e9t\u00e9 ren\u00e9goci\u00e9s.<\/p>\n\n\n\n<p>En pratique, il est essentiel de v\u00e9rifier <strong>la clause de r\u00e9vision<\/strong> pr\u00e9vue au contrat : c\u2019est elle qui d\u00e9termine l\u2019indice applicable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"calculer-la-revision-dun-loyer-commercial\"><a href=\"#calculer-la-revision-dun-loyer-commercial\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Calculer la r\u00e9vision d\u2019un loyer commercial<\/h2>\n\n\n\n<p>La r\u00e9vision d\u2019un <strong>loyer commercial<\/strong> repose sur une m\u00e9thode l\u00e9gale, encadr\u00e9e et relativement simple \u00e0 appliquer d\u00e8s lors que l\u2019on dispose du <strong>bon indice<\/strong> et des <strong>valeurs de r\u00e9f\u00e9rence<\/strong>. L\u2019objectif est d\u2019utiliser une formule commune \u00e0 <strong>tous les baux commerciaux et professionnels<\/strong>.<\/p>\n\n\n\n<p>La formule de r\u00e9vision l\u00e9gale est la suivante :<\/p>\n\n\n\n<p><strong><em>Nouveau loyer = Loyer actuel \u00d7 (Nouvel indice \/ Ancien indice)<\/em><\/strong><\/p>\n\n\n\n<p>Cette m\u00e9thode pr\u00e9sente plusieurs avantages pour le propri\u00e9taire comme pour le locataire :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Elle garantit une <strong>r\u00e9vision transparente<\/strong>, <strong>pr\u00e9visible<\/strong> et <strong>conforme<\/strong> \u00e0 la r\u00e9glementation.<\/li>\n\n\n\n<li>Le bailleur peut anticiper l\u2019\u00e9volution de ses <strong>revenus locatifs<\/strong>.<\/li>\n\n\n\n<li>Le locataire b\u00e9n\u00e9ficie d\u2019une <strong>protection<\/strong> contre des augmentations excessives ou arbitraires.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"consulter-les-indices-immobiliers-officiels\"><a href=\"#consulter-les-indices-immobiliers-officiels\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Consulter les indices immobiliers officiels<\/h2>\n\n\n\n<p>Pour suivre l\u2019\u00e9volution des <strong>indices immobiliers<\/strong> et appliquer correctement une <strong>r\u00e9vision de loyer<\/strong>, il est indispensable de consulter des sources fiables et r\u00e9guli\u00e8rement mises \u00e0 jour.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"insee\"><a href=\"#insee\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>INSEE<\/h3>\n\n\n\n<p>En <strong>France<\/strong>, la r\u00e9f\u00e9rence principale reste <a href=\"https:\/\/www.insee.fr\/fr\/accueil\">l\u2019INSEE<\/a>, qui publie chaque trimestre les valeurs officielles de l\u2019<strong>ILC<\/strong>, de l\u2019<strong>ILAT<\/strong> et de l\u2019<strong>ICC<\/strong>. Les tableaux y sont pr\u00e9sent\u00e9s de mani\u00e8re d\u00e9taill\u00e9e, avec l\u2019historique des indices, ce qui permet de r\u00e9aliser facilement des comparaisons sur plusieurs ann\u00e9es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"service-public\"><a href=\"#service-public\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Service Public<\/h3>\n\n\n\n<p>Le site <a href=\"http:\/\/service-public.fr\">Service-public.fr<\/a> constitue \u00e9galement une ressource pr\u00e9cieuse : il propose des fiches pratiques expliquant le <strong>cadre l\u00e9gal<\/strong>, les <strong>modalit\u00e9s d\u2019utilisation<\/strong> de chaque indice et les <strong>r\u00e8gles \u00e0 respecter<\/strong> lors d\u2019une r\u00e9vision de loyer commercial. C\u2019est une excellente porte d\u2019entr\u00e9e pour les <strong>bailleurs<\/strong> ou <strong>gestionnaires<\/strong> qui souhaitent comprendre rapidement le fonctionnement des indices.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"maitriser-les-indices-pour-securiser-vos-loyers-commerciaux\"><a href=\"#maitriser-les-indices-pour-securiser-vos-loyers-commerciaux\" class=\"heading-link\"><i class=\"glyphicon glyphicon-link\"><\/i><\/a>Ma\u00eetriser les indices pour s\u00e9curiser vos loyers commerciaux<\/h2>\n\n\n\n<p>Les <strong>indices immobiliers<\/strong> tels que l\u2019<strong>ILC<\/strong>, l\u2019<strong>ILAT<\/strong> et l\u2019<strong>ICC<\/strong> jouent un r\u00f4le central dans la r\u00e9vision des <strong>loyers commerciaux<\/strong> en <strong>France<\/strong>. Comprendre leur <strong>fonctionnement<\/strong>, leurs <strong>diff\u00e9rences<\/strong> et leur mode de calcul permet aux <strong>bailleurs<\/strong> comme aux <strong>locataires<\/strong> d\u2019appliquer une <strong>indexation<\/strong> conforme au cadre l\u00e9gal et adapt\u00e9e \u00e0 la nature de l\u2019activit\u00e9 exerc\u00e9e dans les locaux.<\/p>\n\n\n\n<p>En 2025, les pratiques tendent \u00e0 privil\u00e9gier l\u2019<strong>ILC<\/strong> et l\u2019<strong>ILAT<\/strong>, plus repr\u00e9sentatifs de l\u2019\u00e9volution \u00e9conomique r\u00e9elle, tandis que l\u2019<strong>ICC<\/strong> reste r\u00e9serv\u00e9 aux baux anciens non ren\u00e9goci\u00e9s. Quel que soit l\u2019indice utilis\u00e9, il est essentiel de se r\u00e9f\u00e9rer uniquement aux <strong>valeurs officielles<\/strong> publi\u00e9es par l\u2019<strong>INSEE<\/strong> ou par les <strong>sites institutionnels<\/strong>, afin d\u2019\u00e9viter toute erreur dans les calculs.<\/p>\n\n\n\n<p>Ma\u00eetriser ces indices, c\u2019est non seulement <strong>s\u00e9curiser la relation contractuelle<\/strong>, mais aussi <strong>anticiper les \u00e9volutions du march\u00e9<\/strong> et assurer une <strong>gestion locative saine<\/strong> et transparente.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.smovin.app\/fr-fr\/prenez-rendez-vous\/?utm_source=seo&amp;utm_medium=article-5-rdv&amp;utm_campaign=banner-rdv-france\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"307\" src=\"https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR-1024x307.png\" alt=\"Prendre rendez-vous\" class=\"wp-image-58861\" srcset=\"https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR-1024x307.png 1024w, https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR-300x90.png 300w, https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR-768x230.png 768w, https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR-1536x461.png 1536w, https:\/\/www.smovin.app\/wp-content\/uploads\/2025\/03\/FR.png 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Pour les bailleurs, investisseurs ou gestionnaires, bien comprendre les indices immobiliers est essentiel pour s\u00e9curiser ses contrats, anticiper l\u2019\u00e9volution des [&hellip;]<\/p>\n","protected":false},"author":208846801,"featured_media":63984,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"cybocfi_hide_featured_image":"","footnotes":""},"categories":[6579],"tags":[6567],"class_list":["post-63981","page","type-page","status-publish","has-post-thumbnail","hentry","category-blog-fr-fr","tag-seo-france-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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