[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663471-105":59,"doc-detail-663471-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","supplementary-planning-guidance-extensions-to-residential-properties","Supplementary Planning Guidance - Extensions to Residential Properties","","Supplementary planning guidance focused on designing residential extensions that may be permitted without a planning application, while setting clear principles for when permission is required. It explains permitted development rights, key local-area restrictions, and special considerations for conservation areas, national parks, and listed buildings. The guidance covers siting and design fundamentals, including scale, relationship to the existing house, roof form, privacy and light impacts, street-scene character, and appropriate materials to support a harmonious, policy-aligned extension that is more likely to receive approval.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/supplementary-planning-guidance-extensions-to-residential-properties/663471/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/supplementary-planning-guidance-extensions-to-residential-properties/663471.png","ImageObject",300,407,{"name":92,"@type":93},"Dewi_Sukmawati","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What are permitted development rights for home extensions?","Question",{"text":112,"@type":113},"Some minor domestic changes can be made without applying for planning permission under permitted development rights. The size and types of development that qualify are explained by the Planning Portal website.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"When do homeowners still need planning permission for extensions?",{"text":117,"@type":113},"Planning permission may be required even for work that would be permitted elsewhere if you live in areas such as a Conservation Area, a National Park, or an Area of Outstanding Natural Beauty. Requirements can also differ for listed buildings.",{"name":119,"@type":110,"acceptedAnswer":120},"What key design factors does the guidance require for an extension?",{"text":121,"@type":113},"The extension should have an appropriate relationship with the existing house, respect the street scene, match size and shape so the original remains dominant, and consider impacts on neighbours’ privacy and light. Materials, roof form, door and window positioning should be consistent and sympathetic to the existing property.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663471,1793228350,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":46},962094243415,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","Supplementary Planning Guidance Extending or altering your home  \nIntroduction  \nThis design guide relates primarily to proposals for extensions to residential properties. It does not seek to impose detailed design controls, but gives general advice and sets out a number of design principles.  \nYou can make certain types of minor changes to your home without needing to apply for planning permission. These are called \"permitted development rights\". The size and types of development that do not require planning permission are explained on the Planning Portal website ([www.planningportal.gov.uk](www.planningportal.gov.uk)) .  \nWith domestic proposals most permitted development rights extend only to houses and not to flats.  \nIn some local areas permitted development rights are more restricted. If you live in a Conservation Area, a National Park, or an Area of Outstanding Natural Beauty you will still need to apply for planning permission for certain types of work which do not need an application in other areas.  \nThere are also different requirements if the property is a listed building.  \nWorthing Borough Council may have removed some of your permitted development rights by issuing an Article 4 direction. This happens when the character of an area of acknowledged importance would be threatened.  \nAlternatively the Council may have removed some of your permitted development rights by a condition on the original approval for the house or estate. You would usually know if your property is affected by such a direction or condition but you can contact Planning Services to check.  \nThe principles contained in this design guide are relevant whether planning permission is required or not. If followed, they should safeguard residential amenity and result in an extension that is sympathetic in appearance to the existing house. As these guidelines are supplementary policy guidance, they will be considered in the assessment of planning applications. Although planning permission can never be guaranteed, an extension that accords with this guide is more likely to receive planning permission than one that does not.  \nWhilst you may be concerned that good design could increase the cost of your extension, this is not necessarily so. Although the best design and using the most appropriate materials may sometimes add to  \nthe initial costs, these are likely to be amply paid back in reduced maintenance costs and an increased resale value for your house. You also have the satisfaction of an extension that blends with the appearance of your property and with the street scene.  \nPlease note that accurate plans are essential before commencing work and by employing a suitably qualified professional person to draw up your plans, you can avoid many of the pit-falls that await those not so experienced in such work.  \nGeneral Principles  \nWhen designing an extension and deciding on an appropriate siting, the two most important things to ensure are; that the design of your extension achieves an appropriate relationship with the design of the existing house and; that it also takes into account any impact on the street scene. To achieve this, you will need to consider carefully the following:  \ni. the size and shape of the extension;  \nii. the materials to be used;  \niii. the design and positioning of doors and windows;  \niv. the effect on the privacy of neighbours and the light reaching their property; and  \nv. the effect the extension will have on the character and appearance of the street.  \nThe Size and Shape of the Extension  \nThe size and shape of any extension should normally be designed to ensure the original house remains the larger and more dominant feature. Therefore, the extension should not be higher than, or in front of, the main house. With semi-detached properties, it is preferable to set back side extensions from the front wall of the original house. This also has the advantage of stopping any awkward bonding of new and old brickwork on the fr","cbCaiiUsd8xPzdQH","https://ap.wps.com/l/cbCaiiUsd8xPzdQH","pdf",173963,"English","# Introduction\n# General Principles\n## The Size and Shape of the Extension\n## Materials","[{\"question\":\"What are permitted development rights for home extensions?\",\"answer\":\"Some minor domestic changes can be made without applying for planning permission under permitted development rights. The size and types of development that qualify are explained by the Planning Portal website.\"},{\"question\":\"When do homeowners still need planning permission for extensions?\",\"answer\":\"Planning permission may be required even for work that would be permitted elsewhere if you live in areas such as a Conservation Area, a National Park, or an Area of Outstanding Natural Beauty. Requirements can also differ for listed buildings.\"},{\"question\":\"What key design factors does the guidance require for an extension?\",\"answer\":\"The extension should have an appropriate relationship with the existing house, respect the street scene, match size and shape so the original remains dominant, and consider impacts on neighbours’ privacy and light. Materials, roof form, door and window positioning should be consistent and sympathetic to the existing property.\"}]","Supplementary Planning Guidance - Extensions to Residential Properties | PDF"]