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Planning guide · Kingston upon Thames

Permitted development in Kingston upon Thames

Single-storey rear extensions, lofts and side extensions you can build in Kingston upon Thames without full planning — and the exceptions.

Quick answer

Borough
Kingston upon Thames
Planning authority
Kingston Council
Conservation areas
22
Statutory determination
8 weeks
Our approval rate
98% first time

London terraced street — typical residential housing for planning drawings in Kingston Upon Thames

What limits permitted development in Kingston upon Thames?

Article 4 directions and trees. The borough holds 114 Article 4 areas in the national register and 7,145 tree preservation zones — the highest of the nine London boroughs that have published to that register. It still issued 969 lawful development certificates in the three years to March 2026.

MeasureKingston upon ThamesLondon
Article 4 areas in the register114
Tree preservation zones in the register7,145most of the 9 boroughs in the tree register
Conservation areas (national register)28 covering 349 ha1,141
Lawful development certificates issued969
Householder approval rate78.4%83.0%
Certificate application fee£274£548 for a householder application
Enforcement notices issued33,554

Sources: registers from the MHCLG Planning Data Platform, retrieved 1 September 2026, excluding revoked entries; decision and enforcement figures from MHCLG PS1 and PS2, twelve quarters to March 2026; fees from the Fees for Applications Regulations 2012 as amended, 2026 rates. Work to a protected tree without consent is a criminal offence under section 210 of the Town and Country Planning Act 1990, whatever the permitted development position.

In detail

Answers for Kingston upon Thames

What can I build under PD in Kingston upon Thames without planning?

Single-storey rear extension up to 3m deep (attached house) or 4m (detached); side extension up to half the original width; loft conversion up to 40m³ (terraced) or 50m³ (semi-detached); single-storey outbuilding within the curtilage; replacement windows and doors. All subject to material match, eaves setback (20cm), and not facing a highway.

Does Permitted Development apply to flats in Kingston upon Thames?

No. Permitted Development rights apply only to houses (Class C3 dwellings). Flats and maisonettes require full planning for almost every external alteration.

Are PD rights different in a conservation area?

Yes — significantly reduced. In a conservation area: side extensions and two-storey rear extensions are not PD; cladding is not PD; chimney removal needs planning; roof additions are restricted.

What is a Lawful Development Certificate?

An LDC is a formal confirmation from the council that your proposal is lawful PD — recommended before building, useful when selling. Costs around £103 for council fees + drawings.

Do I need building regulations even under PD?

Yes. Building regulations are entirely separate from planning. Permitted Development removes the planning requirement only — you still need building control sign-off for structure, insulation, fire safety, drainage, and ventilation. We deliver both planning and building regs drawings.

Related guides for Kingston upon Thames
An architectural technologist checking a printed set of house drawings, marking a proposed elevation in red — permitted development in Kingston upon Thames
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Which Kingston upon Thames postcodes does this permitted development scheme service cover?

Every Kingston upon Thames postcode district we draw in, the stock that dominates it and the authority that validates a permitted development scheme there. Kingston upon Thames fees below are the statutory England rates for 2026, not permitted development scheme estimates.

PostcodeAreaDominant stockWhat it means for a permitted development scheme
KT1Kingston upon ThamesGeorgian fragments, Victorian terraces, 1930s semi-detachedKT1 covers Kingston upon Thames only; Kingston Council handles the permitted development scheme.
KT2Kingston / NorbitonGeorgian fragments, Victorian terraces, 1930s semi-detachedKingston / Norbiton sits wholly inside KT2, so Kingston Council validates every permitted development scheme submitted from an KT2 address.
KT3New MaldenEdwardian villas, 1930s semi-detachedNew Malden sits wholly inside KT3, so Kingston Council validates every permitted development scheme submitted from an KT3 address.
KT5Surbiton / TolworthEdwardian villas, mansion blocksA permitted development scheme at an KT5 address in Surbiton / Tolworth is determined by Kingston Council under its own Local Plan policies for Surbiton / Tolworth.
KT6SurbitonEdwardian villas, mansion blocksSurbiton sits wholly inside KT6, so Kingston Council validates every permitted development scheme submitted from an KT6 address.
KT9Chessington1930s semi-detachedA permitted development scheme at an KT9 address in Chessington is determined by Kingston Council under its own Local Plan policies for Chessington.

What changes about a permitted development scheme in each part of Kingston upon Thames?

Roof pitch, wall build-up and plot depth change every few Kingston upon Thames streets, and each one changes what a permitted development scheme can achieve at that address.

How do conservation areas and Article 4 affect a permitted development scheme in Kingston upon Thames?

How designation changes a Kingston upon Thames permitted development scheme: Kingston Council’s own list names 22 conservation areas, including Hampton Wick, Coombe Hill, Kingston Old Town. Inside any of them a Kingston upon Thames permitted development scheme cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Coombe Hill sets the tone for Kingston upon Thames casework.

Article 4 and your Kingston upon Thames permitted development scheme: Kingston Council has made no borough-wide direction, so permitted development for a permitted development scheme in Kingston upon Thames generally survives outside Kingston upon Thames conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a KT1 owner records that a permitted development scheme was lawful.

Kingston upon Thames housing stock: Edwardian villas in Surbiton and New Malden; Victorian terraces in Kingston central; 1930s semi-detached in Chessington and Tolworth; post-war in New Malden. Outer south-west London suburban; generally permissive; riverside conservation areas add character in Kingston town. Read that before choosing a permitted development scheme route in Kingston upon Thames — construction, not postcode, sets what is achievable.

Who decides a permitted development scheme on the edge of Kingston upon Thames?

Sources for this Kingston upon Thames permitted development scheme page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.

Permitted development in Kingston upon Thames — the exterior of London house before works
The exterior of a london house before works — permitted development in Kingston upon Thames.

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