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Free 2026 London Planning Report — Feltham TW13

Loft bedroom with a sloping white ceiling, two roof windows, a double bed with grey bedding and an origami-style pendant light
TW13 · Feltham · Hounslow

Planning and building regulation drawings in Feltham (TW13)

Feltham is an interwar and post-war suburb with generous plots. Bay-fronted semis and post-war council-built estates make up most of the district, with generous back gardens on roads such as Southern Avenue and Glebelands Road. Ashmead Road and Browells Lane are among its other streets. Plots like these are wide enough for a single-storey rear extension, a side infill or a hip-to-gable loft conversion, and all three can be designed without touching the front elevation.

  • MCIAT chartered technologists
  • London Borough of Hounslow granted 75% of 704 householder applications
  • Drawings in about 7 days

Free Feltham planning assessment

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On the interwar and post-war estates, many rear and side projects can fall within permitted development, and no householder Article 4 direction is published for them. The constraints that do arise are specific. Hanworth Park and St Dunstan's conservation areas tighten what is acceptable near the village core and the parkland edge, and Feltham Town Centre conservation area governs the busier commercial frontages rather than the residential streets. A house in or near any of them deserves a check before a design is fixed.

Two practical points apply almost everywhere. Semi-detached pairs and terraces share walls, so a rear or side extension usually means serving notice on the neighbour under the Party Wall etc. Act. And low ground near the River Crane and Longford River puts some plots in an Environment Agency flood zone, which calls for a drainage-aware design. We check the designations, flood position and permitted development limits for your address first, and tell you which route fits.

Planning in Feltham: what to know before you apply

Hounslow expects a householder application to be supported by drawings that match its validation list, and in Feltham some projects will not need one at all. Where a house sits outside a conservation area and works stay within the limits, permitted development can cover a rear or side extension and a hip-to-gable loft. Flats have no householder rights, and in a conservation area roof enlargements, side extensions and rear extensions of more than one storey are not permitted development. The Hanworth Park and St Dunstan's conservation areas are the ones to watch near the village core and parkland edge. Hounslow does apply Article 4 controls to HMO conversions in parts of the borough, and aircraft noise toward Heathrow can influence design. We confirm what applies to your address before drawing.

Applications are decided by London Borough of Hounslow — its planning pages.

Check your route

Does your Feltham project need planning permission?

Route check · Feltham (TW13)

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.

Confirm it with a free appraisal

Feltham (TW13) in numbers

What London Borough of Hounslow has decided, and what TW13 is built of — the two facts that shape every job here.

Householder planning decisions — London Borough of Hounslow

Feltham (TW13) applications are decided by London Borough of Hounslow; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1704
Granted526
Refused178
Grantedof 704 decisions · England 90%75%
Decided within 8 weeksof 404, excluding prior approvals97%

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 — London Borough of Hounslow

How the larger-home-extension route has fared with London Borough of Hounslow, which decides TW13 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q1263
Prior approval granted54
Prior approval refused138
Grantedof 192 determined28%

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

Planning appeals — London Borough of Hounslow

Refusals in TW13 can be appealed to the Planning Inspectorate; this is London Borough of Hounslow's householder appeal record.

Householder appeals determined2021–2026352
Allowed175
Allowedof 352 · England 36%50%

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

Conservation areas and Article 4 directions — London Borough of Hounslow

Register counts for London Borough of Hounslow. A count describes what the council has published, never a rank against another council.

Conservation areas in the register28 dated, 1968–201443
Article 4 directions in the register3
Areas covered by an Article 4 direction3

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

What TW13 is built of

Residential building form across Feltham (TW13), from 396 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side41%
Attached on one side54%
Detached5%
Median building footprint54 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.56
Buildings classified396

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 Feltham 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 London Borough of Hounslow’s checklist and submit on your behalf.
  4. Council: 8-week targetHouseholder applications carry an 8-week statutory target. London Borough of Hounslow decided 97% of 404 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 TW13

Felthampredominantly interwar and post-war suburban
Nearby

Nearby postcode districts

Hampton TW12Twickenham TW1Teddington TW11Twickenham TW2Ham & Petersham TW10Hounslow TW3Richmond TW9Cranford TW5
FAQ

Feltham (TW13) — FAQs

Can I extend my Feltham semi without planning permission?+
Sometimes, where the house is not in a conservation area and the work stays within permitted development limits. Single-storey rear extensions and hip-to-gable lofts are routes that can fit. Flats are excluded, and we check your address against the current rules before advising.
Does the flood zone near the River Crane matter for an extension?+
It can. Some plots on low ground by the River Crane and Longford River fall within an Environment Agency flood zone. That does not stop building, but the design needs to deal with drainage and flood risk properly, so we raise it at the start.
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