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Free 2026 London Planning Report — Surbiton KT6

Loft bedroom with a steeply sloping white ceiling, two roof windows, a double bed with dark headboard and a paper pendant light
KT6 · Surbiton · Kingston

Planning and building regulation drawings in Surbiton (KT6)

Surbiton and Tolworth sit side by side in KT6 but were built in different eras, and the work they call for differs accordingly. Surbiton is a railway-era New Town, a Victorian town of villas and terraces laid out around the landscaped Claremont Crescent Gardens, stretching between Portsmouth Road and Maple Road. Claremont Road, Maple Road, Anglesea Road and Southborough Road are among its streets. Further south, in the Southborough area, grander detached houses stand in mature plots with generous frontages, which constrain the scale of extensions there.

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  • Royal Borough of Kingston upon Thames granted 82% of 766 householder applications
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Tolworth is a classic interwar suburb of bay-fronted semis and short terraces arranged around the Broadway and the landmark Tolworth Tower. Ewell Road, King Charles' Road, Raeburn Avenue and Sandhurst Avenue are among its streets. Wide plots and side access make single-storey rear extensions, side infills and loft conversions the mainstay, and many of these homes still carry good permitted development potential, though the tests have to be met precisely.

Conservation areas shape the Surbiton half: Claremont Road, Southborough and Surbiton Town Centre. Fishponds Park is the conservation area named for Tolworth. One of Kingston's Article 4 directions also sits in KT6, covering the Seething Wells Filter Beds off Portsmouth Road. Since the council does not publish these nationally, the sensible habit here is to check its own map before assuming which rights survive.

Planning in Surbiton: what to know before you apply

In Surbiton, Kingston closely guards the Victorian layout of the Claremont Road conservation area, and in Southborough the mature plots and frontages limit how large an extension can be. In those areas roof enlargements, side extensions and rear extensions of more than one storey are not permitted development, so they go to the council as a householder application. In Tolworth much extension work on the interwar semis can be permitted development if the tests are met precisely, but the council still expects the street frontage to keep its suburban character, and mature garden trees affect foundations. The Seething Wells direction is specific to its site, and the borough does not publish its Article 4 rows nationally. We therefore check the council's own map for each address. Flats have no householder permitted development rights.

Applications are decided by Royal Borough of Kingston upon Thames — its planning pages.

Check your route

Does your Surbiton project need planning permission?

Route check · Surbiton (KT6)

Listed building?
Conservation area?
Likely permitted development — no planning applicationNeeds checking
  • A single-storey rear extension up to 4 m deep on a detached house, or 3 m on any other house, is Class A permitted development subject to the height and materials conditions.
  • An Article 4 direction applies here and may withdraw this freedom — the schedule must be checked before relying on it.
  • One or more constraints are unknown — we check the council's registers as part of the free appraisal.
  • Where permitted development applies, a lawful development certificate proves it for lenders and buyers.

Sources: GPDO 2015, Schedule 2, Part 1 · Planning Portal — common projects · Building Regulations 2010 — when approval is needed

This is a first-pass indication from the national rules, not planning advice for your property. Your council's registers, any Article 4 schedule and the exact dimensions decide it — the free appraisal checks all three before we recommend a route.

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Surbiton (KT6) in numbers

What Royal Borough of Kingston upon Thames has decided, and what KT6 is built of — the two facts that shape every job here.

Householder planning decisions — Royal Borough of Kingston upon Thames

Surbiton (KT6) applications are decided by Royal Borough of Kingston upon Thames; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1766
Granted628
Refused138
Grantedof 766 decisions · England 90%82%
Decided within 8 weeksof 664, excluding prior approvals93%

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Permitted development prior approvals — Royal Borough of Kingston upon Thames

How the larger-home-extension route has fared with Royal Borough of Kingston upon Thames, which decides KT6 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q194
Prior approval granted9
Prior approval refused102
Grantedof 111 determined8%

Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Planning appeals — Royal Borough of Kingston upon Thames

Refusals in KT6 can be appealed to the Planning Inspectorate; this is Royal Borough of Kingston upon Thames's householder appeal record.

Householder appeals determined2021–2026171
Allowed75
Allowedof 171 · England 36%44%

Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.

Conservation areas and Article 4 directions — Royal Borough of Kingston upon Thames

Register counts for Royal Borough of Kingston upon Thames. A count describes what the council has published, never a rank against another council.

Conservation areas in the register26 dated, 1971–200428
Article 4 directions in the register3
Areas covered by an Article 4 direction114

Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.

What KT6 is built of

Residential building form across Surbiton (KT6), from 309 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side30%
Attached on one side49%
Detached21%
Median building footprint72 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.88
Buildings classified309

Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-09-22.

  1. Day 0Measured survey of your Surbiton property — or your existing plans if you have them.
  2. About 7 daysDrawings issued for your approval. Free redraws until you are happy.
  3. SubmissionWe validate against Royal Borough of Kingston upon Thames’s checklist and submit on your behalf.
  4. Council: 8-week targetHouseholder applications carry an 8-week statutory target. Royal Borough of Kingston upon Thames decided 93% of 664 recent householder applications inside it.

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Neighbourhoods

Streets and neighbourhoods in KT6

Surbitonpredominantly VictorianTolworthpredominantly interwar suburban
Nearby

Nearby postcode districts

Worcester Park KT4Chessington KT9New Malden KT3Kingston KT1Coombe KT2
FAQ

Surbiton (KT6) — FAQs

Can I build a side infill extension in Tolworth without planning permission?+
It can be, outside the Fishponds Park conservation area, because the interwar semis here have wide plots and side access, and many still hold good permitted development potential. The limits on height, width and materials still apply, so we measure the house against them before drawing. If any limit is exceeded, the scheme goes in as a householder application instead.
What changes if my Surbiton house is in the Claremont Road conservation area?+
Mainly the route. Roof enlargements, side extensions and extensions of more than one storey at the rear need planning permission, and the council pays close attention to the Victorian layout that grew from the original New Town. We confirm the boundary for your address first and draw to suit it.
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