{"id":3515,"date":"2026-10-30T15:50:58","date_gmt":"2026-10-30T15:50:58","guid":{"rendered":"https:\/\/sanctuaryestates.co.uk\/index.php\/certificates-needed-when-selling-after-a-loft-conversion-or-extension\/"},"modified":"2026-10-30T15:50:58","modified_gmt":"2026-10-30T15:50:58","slug":"certificates-needed-when-selling-after-a-loft-conversion-or-extension","status":"publish","type":"post","link":"https:\/\/sanctuaryestates.co.uk\/index.php\/certificates-needed-when-selling-after-a-loft-conversion-or-extension\/","title":{"rendered":"Selling After a Loft Conversion, Extension or Window Upgrade: Which Certificates Will Your Solicitor Ask For?"},"content":{"rendered":"<p><img decoding=\"async\" class=\"lazyload size-thumbnail wp-image-2213 alignleft\" src=\"https:\/\/sanctuaryestates.co.uk\/wp-content\/uploads\/2023\/07\/IMG_3132-150x150.jpg\" data-orig-src=\"https:\/\/sanctuaryestates.co.uk\/wp-content\/uploads\/2023\/07\/IMG_3132-150x150.jpg\" alt=\"Loft conversion and extension certificates\" width=\"150\" height=\"150\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27150%27%20height%3D%27150%27%20viewBox%3D%270%200%20150%20150%27%3E%3Crect%20width%3D%27150%27%20height%3D%27150%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/sanctuaryestates.co.uk\/wp-content\/uploads\/2023\/07\/IMG_3132-66x66.jpg 66w, https:\/\/sanctuaryestates.co.uk\/wp-content\/uploads\/2023\/07\/IMG_3132-150x150.jpg 150w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/p>\n<p>Adding a loft conversion, extending a kitchen-diner, or upgrading windows and doors is one of the most rewarding ways to add living space and value to a home across Cheshire and the North West. However, when the time comes to sell or remortgage your property, the buyer&rsquo;s solicitor will ask to see the official compliance paperwork for every alteration listed on the Law Society&rsquo;s TA6 Property Information Form.<\/p>\n<p><strong>1. The Building Regulations Completion Certificate (Extensions &amp; Lofts)<\/strong><\/p>\n<p>Planning permission and Building Regulations approval are two separate things. Even where an extension or loft conversion fell under Permitted Development, the structural work, fire escape routes, insulation, and drainage require inspection and sign-off. Once the final inspection passes, the local council&rsquo;s building control department (or a private registered building control approver) issues a <strong>Completion Certificate<\/strong>. On the TA6 form (Questions 5.1 and 5.2), your conveyancer will ask you to attach this certificate.<\/p>\n<p><strong>2. Replacement Windows, Roof Lights and Glazed Doors (FENSA &amp; CERTASS)<\/strong><\/p>\n<p>Since 1 April 2002, replacing windows, Velux roof windows, or external bi-fold and patio doors has required Building Regulations compliance. While most homeowners and estate agents refer to all window paperwork as a &ldquo;FENSA certificate&rdquo;, installers may have registered the work with CERTASS, Assure, or local authority building control instead. Notably, standalone conservatories, porches, and new-build extensions fall outside the remit of FENSA and are covered by building control records where applicable.<\/p>\n<p><strong>3. Electrical Part P &amp; Heating Notifications (NICEIC, NAPIT &amp; Gas Safe)<\/strong><\/p>\n<p>A loft conversion or kitchen extension almost always involves new electrical circuits, consumer unit upgrades, or relocating a gas boiler. Since January 2005, notifiable domestic electrical work in England and Wales has required a Part P Building Regulations compliance certificate (typically issued through NICEIC, ELECSA, or NAPIT), while boiler installations since April 2005 require a Gas Safe Building Regulations compliance certificate.<\/p>\n<p><strong>4. How to Replace Lost Property Certificates Before You Sell<\/strong><\/p>\n<p>If paperwork from an earlier renovation has been lost\u2014or was never handed over when you bought the house\u2014the central scheme registers and council archives still hold the record against your address. Rather than chasing eight separate schemes and the council individually, homeowners and solicitors can use <a href=\"https:\/\/mycerts.co\/\">My Certs<\/a> to search every UK certificate register and the local council in one go, or order a <a href=\"https:\/\/mycerts.co\/fensa-certificate\">replacement FENSA certificate<\/a> directly by postcode. Crucially, if your solicitor is considering a Building Regulations indemnity insurance policy for older uncertified work, you should always check the public registers first before contacting the council directly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adding a loft conversion, extending a kitchen-diner, or upgrading windows [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2213,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-3515","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-loft-conversions"],"_links":{"self":[{"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/3515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=3515"}],"version-history":[{"count":0,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/3515\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/media\/2213"}],"wp:attachment":[{"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=3515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=3515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sanctuaryestates.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=3515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}