{"id":1022,"date":"2023-10-05T12:02:39","date_gmt":"2023-10-05T10:02:39","guid":{"rendered":"https:\/\/www.deschacht.eu\/nieuwe-hemelwaterverordening-2023\/"},"modified":"2026-07-01T15:41:46","modified_gmt":"2026-07-01T13:41:46","slug":"nouvel-arrete-sur-les-eaux-pluviales-2023","status":"publish","type":"post","link":"https:\/\/www.deschacht.eu\/fr\/nieuws\/nieuwe-hemelwaterverordening-2023\/","title":{"rendered":"Nouvelle r\u00e9glementation sur les eaux de pluie 2023"},"content":{"rendered":"<h2 class=\"wp-block-heading\" style=\"font-size: 30px; text-align: left;\"><strong>Nouveau<\/strong> <span style=\"font-weight: normal;\">R\u00e8glement sur les eaux pluviales 2023<\/span><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:16.66%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:83.33%\">\n<div style=\"font-size: 115%;\">\n<p>La r\u00e9glementation flamande concernant l'accueil de <strong>eaux de pluie<\/strong> werd onlangs \u2013 vanaf 2 oktober \u2013 aangepast om beter in te spelen op de <strong>\u00e9volution climatique<\/strong>, qui provoque des pluies torrentielles plus fr\u00e9quentes et de longues p\u00e9riodes de s\u00e9cheresse.<\/p>\n<p><em style=\"font-size: 115%;\">Source : POSV, Plan d'Occupation du Sol de la Ville, Versement d'eau.<\/em><\/p>\n<p><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"color: #ffcc00; text-transform: uppercase; font-size: 1.5em;\">Pour qui ?<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h4 class=\"wp-block-heading\">Domaine priv\u00e9 et domaine public faisant partie d'un lotissement de terrains<\/h4>\n\n\n\n<ul style=\"color: black;\">\n<li><strong>\u00c0 partir du 2 octobre 2023<\/strong><\/li>\n<li><strong>Soumis \u00e0 autorisation<\/strong>: demande de permis de construire d\u00e9pos\u00e9e \u00e0 partir du 02\/10\/2023<\/li>\n<li><strong>Pas soumis \u00e0 autorisation<\/strong>: projets dont les travaux ont d\u00e9but\u00e9 \u00e0 partir du 02\/10\/2023<\/li>\n<p><\/p><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h4 class=\"wp-block-heading\">Domaine public (route publique, places, parking,...)<\/h4>\n\n\n\n<ul style=\"color: black;\">\n<li><strong>\u00c0 partir du 7 janvier 2025<\/strong><\/li>\n<li><strong>Exigence de permis<\/strong>: une demande de permis d'environnement a \u00e9t\u00e9 introduite \u00e0 partir de cette date<\/li>\n<li><strong>Pas soumis \u00e0 autorisation<\/strong>: CGPR<\/li>\n<p><\/p><\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Les modifications les plus importantes<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><span style=\"font-size: 18px; font-weight: bold;\">Trottoir et extension de volume obligatoires<\/span>\nLes puisards sont toujours obligatoires pour les nouvelles constructions, les reconstructions ou les extensions, ou lors de la r\u00e9novation d'un b\u00e2timent existant avec des travaux sur le drainage (sauf lorsque les parcelles cadastrales appartenant \u00e0 une m\u00eame propri\u00e9t\u00e9 sont ensemble moins petites que 120m\u00b2).\n\n<h4>Quelle doit \u00eatre la taille du r\u00e9servoir d'eau de pluie ?<\/h4>\n<ul>\n<li>Surface de toit &lt;80 m\u00b2 : min. 5.000 l<\/li>\n<li>Surface d'application 80 \u2013 120 m\u00b2 : min. 7 500 l<\/li>\n<li>Surface de toit 120 \u2013 200 m\u00b2 : min. 10 000 l<\/li>\n<li>Surface de toiture &gt;200 m\u00b2 : min. 100 l\/m\u00b2, sauf si la demande r\u00e9v\u00e8le que les utilisations pr\u00e9vues ne sont pas proportionnelles au volume fix\u00e9<\/li>\n<li>Plusieurs logements : min. 100 l\/m\u00b2, par tranche suppl\u00e9mentaire de 5000 l, une unit\u00e9 d'habitation suppl\u00e9mentaire est raccord\u00e9e.<\/li>\n<li>Autres b\u00e2timents que les habitations : min. 100 l\/m\u00b2, sauf si la demande d\u00e9montre que les possibilit\u00e9s d'utilisation ne sont pas proportionnelles au volume enregistr\u00e9.<\/li>\n<p><\/p><\/ul>\n<p><\/p><\/li>\n\n\n\n<li><span style=\"font-size: 18px; font-weight: bold;\">Extension de la surface et du volume d'infiltration :<\/span>\nLa surface d&#x27;infiltration doit repr\u00e9senter 8% de la surface totale \u00e0 drainer. Le volume d&#x27;infiltration doit \u00eatre \u00e9gal \u00e0 33 l\/m\u00b2 de la surface \u00e0 drainer.<\/li>\n\n\n\n<li><span style=\"font-size: 18px; font-weight: bold;\">Application<\/span>\nLes eaux de pluie collect\u00e9es doivent \u00eatre utilis\u00e9es au maximum pour des applications ne n\u00e9cessitant pas d'eau potable, notamment la chasse d'eau des toilettes, l'eau de nettoyage, la machine \u00e0 laver et l'usage ext\u00e9rieur.<\/li>\n\n\n\n<li><span style=\"font-size: 18px; font-weight: bold;\">Augmentation du volume tampon de la surface de drainage<\/span>\nLe volume tampon pour les grandes surfaces imperm\u00e9ables est augment\u00e9 lorsque, pour des raisons techniques, aucune installation d'infiltration ne peut \u00eatre r\u00e9alis\u00e9e.\nLa surface totale drainante est d\u00e9termin\u00e9e par la somme de diff\u00e9rents \u00e9l\u00e9ments :\n\n<ul>\n<li>Rev\u00eatements de surface : nouveaux\/r\u00e9am\u00e9nagement\/extension (\u00e0 l&#x27;exception des rev\u00eatements perm\u00e9ables pr\u00e9sentant une pente &lt; 2%).<\/li>\n<li>Surface de la cabine<\/li>\n<p><\/p><\/ul>\n<p>Si une citerne d'eau de pluie et\/ou une toiture v\u00e9g\u00e9tale est pr\u00e9sente, ils peuvent \u00eatre d\u00e9duits de la surface drainante :<\/p>\n<ul>\n<li>Citerne d'eau de pluie\u00a0: d\u00e9duction de 30\u00a0m\u00b2 par unit\u00e9 de logement raccord\u00e9e.<\/li>\n<li>Toiture v\u00e9g\u00e9talis\u00e9e : avec les toitures v\u00e9g\u00e9talis\u00e9es, le raccordement \u00e0 une citerne d'eau de pluie n'est pas obligatoire. Si vous choisissez de vous raccorder \u00e0 une citerne d'eau de pluie et que la toiture v\u00e9g\u00e9talis\u00e9e a une capacit\u00e9 de r\u00e9tention d'eau d'au moins 50 l\/m\u00b2, la surface de la toiture v\u00e9g\u00e9talis\u00e9e peut \u00eatre divis\u00e9e par deux lors du calcul de la surface de drainage pour l'installation d'infiltration.<\/li>\n<p><\/p><\/ul>\n<p><\/p><\/li>\n\n\n\n<li><span style=\"font-size: 18px; font-weight: bold;\">Construction de la structure d'infiltration<\/span>\nL'installation d'infiltration doit \u00eatre construite hors sol, \u00e0 moins que le demandeur de permis ne d\u00e9montre de mani\u00e8re motiv\u00e9e que la construction souterraine est in\u00e9vitable.\nJusqu'\u00e0 une profondeur de 50 cm, le sol est consid\u00e9r\u00e9 comme \u00e9tant situ\u00e9 au-dessus du niveau moyen de la plus haute nappe phr\u00e9atique. Si la profondeur &gt; 50 cm et la surface drain\u00e9e &gt; 1 000 m\u00b2, des tests suppl\u00e9mentaires seront demand\u00e9s.\nEn outre, il convient de noter que l'\u00e9vacuateur de crue se trouve \u00e0 une profondeur inf\u00e9rieure \u00e0 30 cm sous le niveau du sol.<\/li>\n\n\n\n<li><span style=\"font-size: 18px; font-weight: bold;\">Installations d'infiltration collectives<\/span>\nLa possibilit\u00e9 d'int\u00e9grer collectivement les obligations relatives aux eaux pluviales est introduite.<\/li>\n<\/ol>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size: 30px; text-align: center;\"><span style=\"font-weight: normal;\">Onze<\/span> <strong>solutions<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"border-radius: 10px;\">\n<p><img decoding=\"async\" alt=\"Solutions Tubao\" class=\"alignnone size-full wp-image-38836 aligncenter\" height=\"120\" src=\"https:\/\/www.deschacht.eu\/wp-content\/uploads\/2026\/04\/oplossingen-tubao.jpg\" width=\"212\"\/><\/p>\n<div style=\"padding: 0 15px;\">\n<h4 style=\"font-weight: 800; font-size: 22px; color: #082c5d; text-align: center;\">R\u00e9servoirs Wikkeltank Tubao<\/h4>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.deschacht.eu\/fr\/travaux-de-voirie-et-degouts\/gestion-des-eaux-de-pluie\/tubao\/\" style=\"color: #333333;\">Plus d'infos sur Tubao \u279c<\/a><\/strong><\/p>\n<p><\/p><\/div>\n<p><\/p><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"border-radius: 10px;\">\n<p><img decoding=\"async\" alt=\"Solutions Tubao\" class=\"alignnone size-full wp-image-38836 aligncenter\" height=\"120\" src=\"https:\/\/www.deschacht.eu\/wp-content\/uploads\/2026\/04\/oplossingen-weholite.jpg\" width=\"212\"\/><\/p>\n<div style=\"padding: 0 15px;\">\n<h4 style=\"font-weight: 800; font-size: 22px; color: #082c5d; text-align: center;\">Tuyaux HDPE Weholite<\/h4>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.deschacht.eu\/fr\/travaux-de-voirie-et-degouts\/gestion-des-eaux-de-pluie\/weholite\/\" style=\"color: #333333;\">Plus d'informations sur Weholite \u279c<\/a><\/strong><\/p>\n<p><\/p><\/div>\n<p><\/p><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"border-radius: 10px;\">\n<p><img decoding=\"async\" alt=\"Solutions Tubao\" class=\"alignnone size-full wp-image-38836 aligncenter\" height=\"120\" src=\"https:\/\/www.deschacht.eu\/wp-content\/uploads\/2026\/04\/oplossingen-ribwall.jpg\" width=\"212\"\/><\/p>\n<div style=\"padding: 0 15px;\">\n<h4 style=\"font-weight: 800; font-size: 22px; color: #082c5d; text-align: center;\">Ribwall IT rollen<\/h4>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.deschacht.eu\/fr\/travaux-de-voirie-et-degouts\/gestion-des-eaux-de-pluie\/mur-nervure\/\" style=\"color: #333333;\">En savoir plus sur Ribwall IT \u279c<\/a><\/strong><\/p>\n<p><\/p><\/div>\n<p><\/p><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"border-radius: 10px;\">\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"Solutions Tubao\" class=\"alignnone size-full wp-image-38836 aligncenter\" height=\"120\" src=\"https:\/\/www.deschacht.eu\/wp-content\/uploads\/2026\/04\/oplossingen-infiltratiekratten.jpg\" width=\"212\"\/><\/p>\n<div style=\"padding: 0 15px;\">\n<h4 style=\"font-weight: 800; font-size: 22px; color: #082c5d; text-align: center;\">Caissons de r\u00e9tention et infiltration<\/h4>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.deschacht.eu\/fr\/travaux-de-voirie-et-degouts\/gestion-des-eaux-de-pluie\/bassins-de-retention-et-dinfiltration\/\" style=\"color: #333333;\">Plus d'infos \u279c<\/a><\/strong><\/p>\n<p><\/p><\/div>\n<p><\/p><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"border-radius: 10px;\">\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"Pluvio Solutions\" class=\"alignnone size-full wp-image-38836 aligncenter\" height=\"120\" src=\"https:\/\/www.deschacht.eu\/wp-content\/uploads\/2026\/04\/oplossingen-pluvio.jpg\" width=\"212\"\/><\/p>\n<div style=\"padding: 0 15px;\">\n<h4 style=\"font-weight: 800; font-size: 22px; color: #082c5d; text-align: center;\">Pluvio<\/h4>\n<p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.deschacht.eu\/fr\/entreprise-generale\/infiltration-des-eaux-usees\/pluvio\/\" style=\"color: #333333;\">Plus d'infos sur Pluvio \u279c<\/a><\/strong><\/p>\n<p><\/p><\/div>\n<p><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><p class=\"p1\" style=\"font-size: 150%; color: white !important; text-align: center;\"><strong>Avez-vous aussi des questions sur la nouvelle ordonnance r\u00e9gionale sur les eaux de pluie 2023 ?<\/strong><\/p><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><p style=\"font-size: 120%; color: white !important; text-align: center;\">Quels <strong>puisard<\/strong> devons-nous placer, quand est <strong>infiltration ou tamponnage<\/strong> n\u00e9cessaire ?\nChez Deschacht, nous savons tout de cela, nos \u00e9quipes sont compl\u00e8tement impliqu\u00e9es. Ne restez pas avec vos questions et contactez-nous pour <strong>une solution sur mesure pour votre projet !<\/strong><\/p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"https:\/\/www.deschacht.eu\/fr\/contact-professionnel\/\" style=\"border-radius:8px;color:#082c5d;background-color:#ffffff;font-weight:700\">Contactez notre expert!<\/a><\/div>\n<\/div>\n\n\n\n<style>\n@font-face{font-family: 'elg'; src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/elg.eot'); src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/elg.eot?#iefix') format('embedded-opentype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/elg.woff') format('woff'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/elg.ttf') format('truetype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/elg.svg#oi') format('svg'); font-weight: normal; font-style: normal;}#fourk2 .elg-icon_question_alt:before{font-family: 'elg'; font-weight: normal; font-style: normal;}#fourk2 .elg-icon_question_alt:before{content: \"e064\";}#fourk2{text-align:center}#fourk2 .fourk-icon{background-color: transparent}#fourk2 .fourk-icon:before{}#fourk2 .fourk-icon:after{}#fourk2 i{font-size:50px;line-height:50px;color:#3498db}#fourk2 .fourk-icon.hovered i{}#fourk2 i{text-align: center;}#fourk2{margin-bottom: 20px;}\n@font-face{font-family: 'ws'; src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack05\/icons\/fonts\/ws.eot'); src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack05\/icons\/fonts\/ws.eot?#iefix') format('embedded-opentype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack05\/icons\/fonts\/ws.woff') format('woff'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack05\/icons\/fonts\/ws.ttf') format('truetype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack05\/icons\/fonts\/ws.svg#oi') format('svg'); font-weight: normal; font-style: normal;}#b_6jc6rljjvod5hyhy8sz3 .ws-phone:before{font-family: 'ws'; font-weight: normal; font-style: normal;}#b_6jc6rljjvod5hyhy8sz3 .ws-phone:before{content: \"f15b\";}\n@font-face{font-family: 'ecommerce'; src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/ecommerce.eot'); src:url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/ecommerce.eot?#iefix') format('embedded-opentype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/ecommerce.woff') format('woff'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/ecommerce.ttf') format('truetype'), url('https:\/\/www.deschacht.eu\/wp-content\/themes\/deschacht\/includes\/4k-icons\/icons\/4k-icons-pack02\/icons\/fonts\/ecommerce.svg#oi') format('svg'); font-weight: normal; font-style: normal;}#b_0zwbiwhrexg2d98s1gxs .ecommerce-shopping80:before{font-family: 'ecommerce'; font-weight: normal; font-style: normal;}#b_0zwbiwhrexg2d98s1gxs .ecommerce-shopping80:before{content: \"e84b\";}\n.button-shop{\nbackground-color:#fec92e;\ncolor:#082c5d;\nborder-radius:8px;\npadding:16px 18px 15px;\n}\n.oplossing-card a.button-shop:hover{\ncolor:#ffffff !important;\nbackground-color:#082c5d !important;\n}\n.oplossing-card a.button-shop:after{\ncontent:\"e84b\";\nfont-family:'ecommerce';\nfont-weight:normal;\nfont-style:normal;\n}\n.important{\nbackground-color:#fef6df;\ncolor:#FFCC00;\npadding:25px 150px 25px 40px;\nborder:1px solid #FFCC00;\nborder-left:5px solid #FFCC00;\nposition:relative;\n}\n.important::after{\ncontent:\"e064\";\n    font-family: 'elg';\nposition:absolute;\ntop: 20px;\n    right: 50px;\n    font-size: 100px;\n}\n<\/style>","protected":false},"excerpt":{"rendered":"<p>Nieuwe hemelwaterverordening 2023 De Vlaamse regelgeving rond opvang van hemelwater werd onlangs \u2013 vanaf 2 oktober &#8211; aangepast om beter in te spelen op de klimaatevolutie, die hevige piekregenval en lange periodes van droogte vaker veroorzaakt. Bron: GSVH, Gewestelijke Stedenbouwkundige verordening Hemelwater. Voor wie? Priv\u00e9domein en openbaar domein dat deel uitmaakt van een verkaveling van [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-1022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nieuwe hemelwaterverordening 2023 | Deschacht<\/title>\n<meta name=\"description\" content=\"Wat betekent de nieuwe hemelwaterverordening 2023 voor jouw projecten? 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