{"id":3638,"date":"2020-11-23T13:26:41","date_gmt":"2020-11-23T12:26:41","guid":{"rendered":"https:\/\/topo4d.be\/que-fait-un-geometre-expert\/"},"modified":"2026-07-17T10:05:00","modified_gmt":"2026-07-17T08:05:00","slug":"que-fait-un-geometre-expert","status":"publish","type":"post","link":"https:\/\/topo4d.be\/fr\/que-fait-un-geometre-expert\/","title":{"rendered":"Que fait un g\u00e9om\u00e8tre-expert ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3638\" class=\"elementor elementor-3638 elementor-1617\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7290723 e-flex e-con-boxed e-con e-parent\" data-id=\"7290723\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c8de42 elementor-widget elementor-widget-heading\" data-id=\"7c8de42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Que fait un g\u00e9om\u00e8tre-expert ?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e75773 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"9e75773\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/topo4d.be\/wp-content\/uploads\/2020\/11\/IMG_5549-edited-1024x576.avif\" class=\"attachment-large size-large wp-image-3639\" alt=\"\" srcset=\"https:\/\/topo4d.be\/wp-content\/uploads\/2020\/11\/IMG_5549-edited-1024x576.avif 1024w, https:\/\/topo4d.be\/wp-content\/uploads\/2020\/11\/IMG_5549-edited-300x169.avif 300w, https:\/\/topo4d.be\/wp-content\/uploads\/2020\/11\/IMG_5549-edited-768x432.avif 768w, https:\/\/topo4d.be\/wp-content\/uploads\/2020\/11\/IMG_5549-edited.avif 1124w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b5e5285 e-flex e-con-boxed e-con e-parent\" data-id=\"b5e5285\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f941fca elementor-widget elementor-widget-text-editor\" data-id=\"f941fca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Vous pouvez faire appel \u00e0 un g\u00e9om\u00e8tre pour diverses raisons. En effet, nous faisons bien plus que de simples \u00ab relev\u00e9s de terrain \u00bb, contrairement \u00e0 ce que le terme de g\u00e9om\u00e8tre pourrait laisser croire. <\/p><p>Ainsi, le g\u00e9om\u00e8tre constitue l&rsquo;assistance technique id\u00e9ale sur les chantiers, en cas de litiges de voisinage et pour toutes sortes de questions relatives \u00e0 l&rsquo;immobilier.<\/p><p>En outre, au fil des ans, le g\u00e9om\u00e8tre a \u00e9volu\u00e9 d&rsquo;un expert en g\u00e9om\u00e9trie utilisant une station totale comme outil vers un g\u00e9om\u00e8tre de haute technologie gr\u00e2ce \u00e0 l&rsquo;utilisation de technologies telles que les drones et le scan laser 3D.<\/p><p>Nous clarifions cela ci-dessous et donnons un bref aper\u00e7u de ses t\u00e2ches.<\/p><h2 class=\"wp-block-heading\">Le g\u00e9om\u00e8tre classique<\/h2><p>Celui-ci s&rsquo;occupe principalement de dossiers juridico-g\u00e9om\u00e9triques tels que les d\u00e9limitations de fronti\u00e8res, les reprises de mitoyennet\u00e9 et les expertises.<\/p><p>Nous en d\u00e9taillons quelques-uns ci-dessous.<\/p><h4 class=\"wp-block-heading\">Mesurage et bornage d&rsquo;un terrain \u00e0 b\u00e2tir ou d&rsquo;une autre parcelle.<\/h4><p>Le mesurage d&rsquo;une parcelle est souvent li\u00e9 au bornage de celle-ci \u00e0 l&rsquo;aide de bornes de d\u00e9limitation. L\u00e9galement, nul autre qu&rsquo;un g\u00e9om\u00e8tre-expert asserment\u00e9 n&rsquo;est autoris\u00e9 \u00e0 borner une parcelle. Un tel bornage se fait g\u00e9n\u00e9ralement \u00e0 l&rsquo;amiable sur la base des plans l\u00e9galement disponibles. Lorsque deux voisins, par exemple, ont une limite qui n&rsquo;est plus certaine ou qui est invisible, ils d\u00e9signent conjointement \u2013 et donc \u00e0 frais partag\u00e9s \u2013 un g\u00e9om\u00e8tre pour red\u00e9finir la limite en tant que partie neutre.   <\/p><p>Le g\u00e9om\u00e8tre \u00e9tablit \u00e9galement un plan, \u00e0 savoir un PV de bornage, qui est sign\u00e9 par les parties concern\u00e9es. Celui-ci doit ensuite \u00eatre enregistr\u00e9 conform\u00e9ment \u00e0 l&rsquo;arr\u00eat\u00e9 PRECAD afin que la limite obtenue ne puisse plus \u00eatre remise en question. Lorsqu&rsquo;aucune solution amiable n&rsquo;est possible, le bornage peut \u00eatre impos\u00e9 par le juge de paix.  <\/p><h4 class=\"wp-block-heading\">\u00c9valuations et estimations<\/h4><p>En tant qu&rsquo;estimateur asserment\u00e9, le g\u00e9om\u00e8tre est la personne id\u00e9ale pour l&rsquo;\u00e9valuation de biens immobiliers. Il constitue ainsi un expert technique <strong>ind\u00e9pendant<\/strong>. <\/p><p>Dans cette fonction, le g\u00e9om\u00e8tre r\u00e9alise des estimations lors de partages (divorce, succession), de pr\u00eats hypoth\u00e9caires, de donations, d&rsquo;expropriations ou lors de la vente ou de l&rsquo;achat d&rsquo;un bien immobilier.<\/p><p>Peu de candidats acqu\u00e9reurs d&rsquo;un bien immobilier font appel \u00e0 un g\u00e9om\u00e8tre pour une expertise ou une estimation. Pourtant, cela peut \u00e9viter bien des soucis ou des discussions ult\u00e9rieures. Lors d&rsquo;une estimation, vous avez une id\u00e9e pr\u00e9cise du prix correct du bien ; lors d&rsquo;une expertise, vous connaissez les d\u00e9fauts techniques ainsi que les \u00e9ventuelles objections juridiques ou urbanistiques.  <\/p><h4 class=\"wp-block-heading\">Permis, attestations et demandes de lotissement<\/h4><p>Compte tenu de sa nature technique, le g\u00e9om\u00e8tre peut \u00e9galement intervenir lors d&rsquo;une demande de lotissement ou d&rsquo;une demande de certificat d&rsquo;urbanisme. Cela va du mesurage \u00e0 la constitution du dossier. Car c&rsquo;est aussi un sujet largement abord\u00e9 durant sa formation.  <\/p><h4 class=\"wp-block-heading\">Reprise de mitoyennet\u00e9<\/h4><p>Lors d&rsquo;une reprise de mitoyennet\u00e9, le g\u00e9om\u00e8tre mesure le mur et calcule la valeur exacte de la partie \u00e0 reprendre. Il \u00e9tablit ensuite un document contenant les d\u00e9tails pr\u00e9cis sur la cession (prix, mat\u00e9riaux, volume, v\u00e9tust\u00e9, etc.) qui prouve juridiquement l&rsquo;achat de la mitoyennet\u00e9 du mur. <\/p><p>Cela constitue un PV de reprise de mitoyennet\u00e9.<\/p><p>Ce document peut \u00e9galement \u00eatre enregistr\u00e9 pour r\u00e9pondre aux exigences PRECAD.<\/p><h4 class=\"wp-block-heading\">\u00c9tat des lieux<\/h4><p>Dans ce cas, le g\u00e9om\u00e8tre consigne de mani\u00e8re pr\u00e9cise et compl\u00e8te l&rsquo;\u00e9tat d&rsquo;un bien immobilier. Les mat\u00e9riaux et les d\u00e9fauts y sont soigneusement d\u00e9crits. Un \u00e9tat des lieux d\u00e9taill\u00e9 est obligatoire au d\u00e9but d&rsquo;un contrat de bail, mais peut \u00e9galement \u00eatre utile lors de constructions sur une parcelle adjacente ou lors de l&rsquo;ex\u00e9cution de travaux routiers de grande envergure. Ainsi, il peut \u00eatre prouv\u00e9 de mani\u00e8re irr\u00e9futable par la suite que d&rsquo;\u00e9ventuels dommages \u00e0 l&rsquo;habitation sont la cons\u00e9quence des travaux.   <\/p><p>De plus en plus souvent, un \u00e9tat des lieux est \u00e9galement r\u00e9alis\u00e9 apr\u00e8s la signature d&rsquo;un compromis pour \u00e9viter les discussions lors de l&rsquo;acte : le chauffe-eau solaire ou le r\u00e9frig\u00e9rateur \u00e9tait-il inclus dans la vente ou non ?<\/p><h2 class=\"wp-block-heading\">Le g\u00e9om\u00e8tre moderne<\/h2><p>Celui-ci est bien au fait des technologies contemporaines et sait mieux que quiconque comment utiliser certains logiciels, drones et scans laser pour obtenir des donn\u00e9es g\u00e9om\u00e9triques de la mani\u00e8re la plus efficace et la plus pr\u00e9cise possible.<\/p><p>En plus de l&rsquo;utilisation de cette technologie pour les points mentionn\u00e9s ci-dessus, une toute nouvelle gamme de possibilit\u00e9s et de t\u00e2ches s&rsquo;offre au g\u00e9om\u00e8tre.<\/p><h2 class=\"wp-block-heading\">D\u00e9tection de conflits (Clash detection)<\/h2><p>Sur la base des donn\u00e9es de scan laser 3D, le g\u00e9om\u00e8tre peut, par exemple, confronter un mod\u00e8le BIM \u00e0 l&rsquo;\u00e9tat existant d&rsquo;un site industriel.<\/p><p>Ceci est souvent appliqu\u00e9 dans l&rsquo;industrie de la tuyauterie ou du CVC (HVAC).<\/p><h2 class=\"wp-block-heading\">Surveillance (Monitoring)<\/h2><p>Il s&rsquo;agit de mesurer et de contr\u00f4ler certains petits tassements ou d\u00e9placements d&rsquo;ouvrages d&rsquo;art, d&rsquo;objets ou de b\u00e2timents.<\/p><p>La surveillance peut \u00eatre abord\u00e9e de diff\u00e9rentes mani\u00e8res, selon la situation, la dur\u00e9e et la pr\u00e9cision requise. Nous pouvons ainsi utiliser des stations totales et des scanners laser d&rsquo;une tr\u00e8s haute pr\u00e9cision. Mais les capteurs ou les travaux de nivellement entrent \u00e9galement dans cette cat\u00e9gorie. De mani\u00e8re g\u00e9n\u00e9rale, nous distinguons :   <\/p><ul class=\"wp-block-list\"><li>Le nivellement : suivi des d\u00e9formations en valeur Z (hauteur) \u00e0 l&rsquo;aide d&rsquo;un niveau avec une pr\u00e9cision de quelques millim\u00e8tres. Cela se produit par exemple lors de pompages de nappes phr\u00e9atiques (rabattement) o\u00f9 il faut v\u00e9rifier qu&rsquo;un quartier r\u00e9sidentiel ne s&rsquo;affaisse pas sous l&rsquo;influence de l&rsquo;eau souterraine. <\/li><li>Les mesures avec station totale : contr\u00f4le de certains points fixes au millim\u00e8tre pr\u00e8s, d\u00e9finis au pr\u00e9alable, par exemple au d\u00e9but de travaux de construction dans les environs ou pour le suivi de b\u00e2timents anciens pr\u00e9sentant des probl\u00e8mes de stabilit\u00e9.<\/li><li>L&rsquo;utilisation de capteurs : gr\u00e2ce \u00e0 la technologie interne, nous pouvons ainsi suivre en permanence des d\u00e9placements minimes jusqu&rsquo;au niveau submillim\u00e9trique.<\/li><\/ul><h2 class=\"wp-block-heading\">Photogramm\u00e9trie<\/h2><p>Enfin, nous avons \u00e9galement la photogramm\u00e9trie, une technologie de plus en plus utilis\u00e9e.<\/p><p>Bien qu&rsquo;elle soit un peu moins pr\u00e9cise que le scan laser, elle a certainement sa valeur ajout\u00e9e. Par exemple, les drones sont souvent utilis\u00e9s pour mesurer de grandes zones, ce qui permet un gain de temps \u00e9norme et s&rsquo;av\u00e8re souvent plus s\u00fbr. <\/p><p>Sur la base d&rsquo;un chevauchement entre diff\u00e9rentes photos, on peut ainsi cr\u00e9er un nuage de points ou un maillage (mesh) \u00e0 partir duquel des distances ou des volumes peuvent \u00eatre facilement d\u00e9termin\u00e9s.<\/p><p>En r\u00e9sum\u00e9, le g\u00e9om\u00e8tre d&rsquo;aujourd&rsquo;hui poss\u00e8de une large connaissance des possibilit\u00e9s et sait \u00e0 l&rsquo;avance, d\u00e8s le d\u00e9but de sa mission, quelle technologie il peut le mieux mettre en \u0153uvre.<\/p><p><em>Vanden Avenne Guillaume<\/em><\/p><p><em>Expert judiciaire et pilote de drone classe 1A<\/em><\/p><p><em>G\u00e9om\u00e8tre-expert asserment\u00e9 sous le num\u00e9ro LAN171743 aupr\u00e8s du tribunal de premi\u00e8re instance de Gand.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e3ecff e-flex e-con-boxed e-con e-parent\" data-id=\"1e3ecff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a19d23 elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"7a19d23\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-shrink\" href=\"https:\/\/topo4d.be\/fr\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-caret-right\" viewBox=\"0 0 192 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M0 384.662V127.338c0-17.818 21.543-26.741 34.142-14.142l128.662 128.662c7.81 7.81 7.81 20.474 0 28.284L34.142 398.804C21.543 411.404 0 402.48 0 384.662z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-nous ! <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Vous pouvez faire appel \u00e0 un g\u00e9om\u00e8tre pour diverses raisons. En effet, nous faisons bien plus que de simples \u00ab relev\u00e9s de terrain \u00bb, contrairement \u00e0 ce que le terme de g\u00e9om\u00e8tre pourrait laisser croire. <\/p>\n<p>Ainsi, le g\u00e9om\u00e8tre constitue l&rsquo;assistance technique id\u00e9ale sur les chantiers, en cas de litiges de voisinage et pour toutes sortes de questions relatives \u00e0 l&rsquo;immobilier.<\/p>\n","protected":false},"author":1,"featured_media":3639,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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":""}},"footnotes":""},"categories":[58],"tags":[],"class_list":["post-3638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Que fait un g\u00e9om\u00e8tre-expert ? 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