{"id":112266,"date":"2025-12-10T13:33:33","date_gmt":"2025-12-10T12:33:33","guid":{"rendered":"https:\/\/www.ginesta.ch\/immobilienwissen\/goodbye-noise-barriers-switzerland-opens-the-way-to-more-densification-from-2026\/"},"modified":"2026-01-15T15:45:52","modified_gmt":"2026-01-15T14:45:52","slug":"goodbye-noise-barriers-switzerland-opens-the-way-to-more-densification-from-2026","status":"publish","type":"post","link":"https:\/\/www.ginesta.ch\/en\/immobilienwissen\/goodbye-noise-barriers-switzerland-opens-the-way-to-more-densification-from-2026\/","title":{"rendered":"Goodbye noise barriers: Switzerland opens the way to more densification from 2026"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Why the old practice no longer worked<\/h3>\n\n<p>A key trigger for the revision was the Federal Supreme Court decision BGE 142 II 100 (&#8220;Niederlenz&#8221;) from 2016. The court made it clear at the time: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>The decisive factor is the loudest window in a noise-sensitive room &#8211; not the quietest.<\/li>\n\n\n\n<li>If the immission limits are exceeded there, the room is generally not permitted.<\/li>\n\n\n\n<li>The previous &#8220;ventilation window practice&#8221; was repealed as contrary to federal law.<\/li>\n\n\n\n<li>Conflicting objectives between densification and noise protection belong in the exception procedure, not in creative interpretation.<\/li>\n<\/ul>\n\n<p>This strict legal situation meant that even well-planned densification projects were suddenly blocked. Exceeding the minimum threshold values made projects virtually impossible. <\/p>\n\n<p>It was only a matter of time before the legislator had to intervene.<\/p>\n\n<div style=\"height:var(--wp--preset--spacing--medium)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">September 27, 2024: the decisive step<\/h3>\n\n<p>Parliament has set a new course with the revision of the Environmental Protection Act (EPA). The reform provides more flexibility &#8211; but it also creates clear framework conditions. <\/p>\n\n<p>The most important changes:<\/p>\n\n<p>1. new rules for building zones and densification<\/p>\n\n<ul class=\"wp-block-list\">\n<li>New zoning: Compliance with planning values.<\/li>\n\n\n\n<li>Zoning and rezoning: IGW apply as a benchmark.<\/li>\n\n\n\n<li>Densification projects may exceed the PW or IGW if<br\/>-there is an overriding interest in inner densification, <br\/>-there is generally accessible open space, <br\/>-structural measures ensure an appropriate quality of living.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p>2. two variants for the requirements per residential unit<\/p>\n\n<p>Variant 1: with controlled domestic ventilation<br\/>&#8211; cooling system or windows with IGW compliance.<br\/><\/p>\n\n<p>Variant 2: without controlled domestic ventilation<br\/>&#8211; IGW in at least half of all noise-sensitive rooms or an IGW-compliant room plus private outdoor space.<\/p>\n\n<p><br\/>3. minimum protection remains mandatory<br\/>Room layout, building position and shielding must continue to be carefully planned.<\/p>\n\n<div style=\"height:var(--wp--preset--spacing--medium)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">What this means in practice<\/h3>\n\n<p>The revision creates real opportunities &#8211; especially in urban areas that suffer from high levels of noise pollution. At the same time, planning will become more challenging because the new requirements are heavily based on technical standards and official enforcement guidelines. <\/p>\n\n<p>Recommendations for owners and project developers:<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Plan noise analyses at an early stage.<br\/>Many decisions are made in the concept phase.<\/li>\n\n\n\n<li>Play through both variants.<br\/>Ventilation systems and floor plan adaptations open up new scope.<\/li>\n\n\n\n<li>Use the outdoor space strategically.<br\/>It is becoming more relevant in terms of building law than before.<\/li>\n\n\n\n<li>Justify densification properly.<br\/>The &#8220;overriding interest&#8221; can become a decisive argument.<\/li>\n\n\n\n<li>Allow for friction points.<br\/>The interplay between the USG, LSV and building laws remains complex.<\/li>\n<\/ol>\n\n<div style=\"height:var(--wp--preset--spacing--medium)\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">March 1, 2026: the new regulations come into force<\/h3>\n\n<p>The new requirements will be binding from this date. Projects that are being developed today must already be aligned with the future rules &#8211; otherwise there is a risk of delays, revisions or, in the worst case, rejection. <\/p>\n\n<figure class=\"wp-block-pullquote\"><blockquote><p><em><strong>Conclusion: <\/strong>The new noise protection law brings back leeway &#8211; but only for those who are prepared. The revision of the law is a clear response to the blockades that have arisen since 2016. It finally makes densification possible again in challenging locations, but at the same time requires strategic, technically cleaner planning.  <\/em><br\/><em>Those who integrate the new requirements at an early stage will not only be approved more quickly in future &#8211; they will also create a quality of living that is convincing in the long term.<\/em><\/p><\/blockquote><\/figure>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>From the 1. A new noise protection regime will apply in Switzerland from March 2026. This is a decisive turning point for anyone building, developing or transforming existing properties. The reform is intended to resolve the deadlock between densification and noise protection &#8211; and for the first time will create space for projects in noise-polluted areas.  <\/p>\n","protected":false},"author":18,"featured_media":107495,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[751,726],"tags":[],"class_list":["post-112266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-real-estate","category-real-estate-knowledge"],"acf":[],"jetpack_featured_media_url":"https:\/\/www.ginesta.ch\/wp-content\/uploads\/iStock-878025126.jpg","featured_image_data":{"caption":"Engelberg, Switzerland - 12 October, 2015: view in the town of Engelberg in autumn. Engelberg is an alpine resort town in the Swiss canton of Obwalden.","title":"View in the town of Engelberg, Switzerland","url":"https:\/\/www.ginesta.ch\/wp-content\/uploads\/iStock-878025126.jpg","width":1243,"height":844,"srcset":"https:\/\/www.ginesta.ch\/wp-content\/uploads\/iStock-878025126-768x521.jpg 768w","sizes":"(max-width:768px) 768px","type":"image\/jpeg"},"featured_image_url":"https:\/\/www.ginesta.ch\/wp-content\/uploads\/iStock-878025126.jpg","readingTime":3,"_links":{"self":[{"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/posts\/112266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/comments?post=112266"}],"version-history":[{"count":3,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/posts\/112266\/revisions"}],"predecessor-version":[{"id":112279,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/posts\/112266\/revisions\/112279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/media\/107495"}],"wp:attachment":[{"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/media?parent=112266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/categories?post=112266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ginesta.ch\/en\/wp-json\/wp\/v2\/tags?post=112266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}