Areas / Hounslow

Architects in Hounslow

From Chiswick's period terraces to the semis of Isleworth, Feltham and Hounslow, the borough mixes sensitive conservation areas with straightforward suburban extensions.

RIBA Chartered Practice · ARB-registered architects · Extensions, lofts and planning drawings

Request a fee proposal Check your postcode

Pair of new bungalows in Hounslow at dusk — 26 Carlton Avenue, Hounslow · Designed within the Green Code group

FreeInitial consultationA conversation about your project, and a first view of what's possible, before any fee is agreed.
FixedFee for each stageEvery stage is priced in writing before it starts. No hourly billing.
3DSee the design firstYour design is shown in 3D before it's submitted, while changes are still easy.
FreeResubmissionIf planning is refused, we revise and resubmit at no extra design fee. Conditions

Local planning points

Planning in Hounslow

Checked October 2026. Planning policy changes, so we confirm the position for your address before you commit.

Single-storey rear extensions are limited to 3.05m deep on terraced houses, 3.65m on semi-detached and 4.25m on detached houses (Residential Extension Guidelines, May 2024).
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Full-width box dormers are normally refused; dormers must be set in from the ridge, eaves and sides, by at least 1m on larger houses.
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A borough-wide Article 4 direction has required planning permission for small HMOs since 4 September 2023.
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HMOs are expected within a 400m walk of town centre facilities and in areas with good public transport (HMO SPD, 2017).
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Additional HMO licensing applies borough-wide from 11 December 2025.
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Postcodes

Hounslow by postcode

4,959 postcodes in 11 postcode districts, 8.4 miles from our studio in Cricklewood.

Where a postcode district is shared, neighbouring streets can fall under a different council. The checker below gives the answer for an exact postcode.

1,722householder, lawful development and prior approval applications registered in Hounslow since 1 October 2025

80%of those decided so far were approved (1,125 approved, 281 refused)

Council-wide figures from public planning records, not our own results. Every application is judged on its own merits.

Postcode checker

Which council decides your application?

Type any postcode in the 33 London boroughs we cover. We'll tell you which council handles planning there and show you the local planning points.

Local work

Our projects in Hounslow

All projects

Services

What we draw in Hounslow

All services

Neighbourhoods we cover include Chiswick, Brentford, Isleworth, Hounslow, Feltham and Cranford.

Neighbouring councils: Ealing, Richmond upon Thames, Hammersmith and Fulham, Hillingdon.