Many homeowners in the UK can extend their homes without needing to apply for full planning permission. This is possible because of something called permitted development rights.<\/p>\n\n\n\n
However, these rights come with strict limits and conditions, and they do not apply to every property<\/strong>. Understanding how they work can help you avoid costly mistakes before starting an extension.<\/p>\n\n\n\n This guide explains the basics of permitted development and when you may still need planning permission.<\/p>\n\n\n\n Permitted development (often shortened to PD) is a set of national planning rules that allow certain types of development to take place without submitting a full householder planning application.<\/p>\n\n\n\n These rules are set out in the Town and Country Planning (General Permitted Development) Order.<\/p>\n\n\n\n For homeowners, permitted development commonly covers things like:<\/p>\n\n\n\n However, these rights only apply if your proposal stays within strict size and design limits.<\/p>\n\n\n\n While the exact rules can vary depending on the project, some typical limits include:<\/p>\n\n\n\n For detached houses:<\/p>\n\n\n\n For semi-detached and terraced houses:<\/p>\n\n\n\n Under the larger home extension permitted development rights, these limits can sometimes increase to:<\/p>\n\n\n\n These larger extensions require the submission of a Prior Approval application before works can start. You can not apply for Large Home Extension Prior Approval retrospectively. If you do not submit a Prior Approval application before starting works, you will require householder planning permission to regularise works. <\/p>\n\n\n\n Extensions must not be higher than the existing house and must usually stay within:<\/p>\n\n\n\n Materials used in the extension should be similar in appearance to the existing house. Alternatively a conservatory is also acceptable under permitted development. <\/p>\n\n\n\n Permitted development rules generally require that at least half of the land within the curtilage of the property remains undeveloped. The curtilage area is usually made up of the land within the front and rear garden area, however this is dependent on specific on-site circumstances. <\/p>\n\n\n\n Many homeowners assume permitted development automatically applies, but this is not always the case.<\/p>\n\n\n\n Permitted development rights may be restricted or removed if:<\/p>\n\n\n\n You can read more about this in our guide: Permitted development limits are calculated based on the original house, not the current one.<\/p>\n\n\n\n This means that:<\/p>\n\n\n\n Because of this, many homeowners accidentally assume they can build more than the rules allow.<\/p>\n\n\n\n <\/p>\n\n\n\n Even if your extension qualifies as permitted development, many homeowners choose to apply for a Lawful Development Certificate (LDC).<\/p>\n\n\n\n This provides official confirmation from the council that the development is lawful.<\/p>\n\n\n\n Benefits include:<\/p>\n\n\n\n You can learn more about this service here: <\/p>\n\n\n\n Permitted development rules can be complex, and small details can make a big difference.<\/p>\n\n\n\n Before committing to drawings or construction, it\u2019s often worth confirming the planning position of your property.<\/p>\n\n\n\n A Home Extension Planning Report<\/strong> provides:<\/p>\n\n\n\n Order a Home Extension Planning Report<\/strong><\/p>\n\n\n\n <\/p>\n\n\n\n You may also find these guides useful:<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" A Simple Guide for Homeowners Many homeowners in the UK can extend their homes without needing to apply for full planning permission. This is possible because of something called permitted development rights. However, these rights come with strict limits and conditions, and they do not apply to every property. Understanding how they work can help […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-29","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=29"}],"version-history":[{"count":1,"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/29\/revisions"}],"predecessor-version":[{"id":30,"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/29\/revisions\/30"}],"wp:attachment":[{"href":"http:\/\/www.planning-assistance.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\n\n\nWhat Are Permitted Development Rights?<\/strong><\/h3>\n\n\n\n
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\n\n\n\nCommon Permitted Development Limits for Extensions<\/strong><\/h3>\n\n\n\n
Rear Extensions<\/strong><\/h4>\n\n\n\n
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\n\n\n\nHeight Restrictions<\/strong><\/h4>\n\n\n\n
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\n\n\n\nMaterials<\/strong><\/h4>\n\n\n\n
\n\n\n\nLand Coverage<\/strong><\/h4>\n\n\n\n
\n\n\n\nWhen Permitted Development Does NOT Apply<\/strong><\/h4>\n\n\n\n
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Why Permitted Development Rights May Not Apply to Your Property<\/strong><\/p>\n\n\n\n
\n\n\n\nPrevious Extensions Can Affect Your Rights<\/strong><\/h4>\n\n\n\n
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\n\n\n\nWhy Many Homeowners Still Apply for a Lawful Development Certificate<\/strong><\/h3>\n\n\n\n
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Lawful Development Certificate Application Support<\/strong><\/p>\n\n\n\n
\n\n\n\nGet Professional Advice Before You Start<\/strong><\/h3>\n\n\n\n
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\n\n\n\nRelated Guides for Homeowners<\/strong><\/h3>\n\n\n\n
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