Feltham / East Bedfont — covered by Hounslow Council.
Hounslow, for Feltham and East Bedfont. That matters: Hounslow approved 69.9% of the householder applications it decided, second lowest of the 33 boroughs, while the Inspectorate allowed 47.2% of its householder appeals against 39.0% across London. A refusal here is worth appealing more often than most.
| Measure | Hounslow | London |
|---|---|---|
| Householder approval rate | 69.9% | 83.0% |
| Householder decisions made | 2,310 | 77,680 |
| Householder appeals allowed after refusal | 49.3% of 659 | 40.8% of 13,067 |
| Median householder appeal | 64 days | — |
| Decided inside eight weeks | 91.2% | — |
| Conservation areas | 43 covering 2,064 ha | 1,141 across London |
Sources: decision figures from MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026; conservation areas from planning.data.gov.uk, retrieved 1 September 2026; appeals from Planning Inspectorate casework decided 2016–2026. Open Government Licence v3.0. TW14 also sits under the Heathrow noise contours, which Hounslow’s local plan treats as a separate design consideration from anything in this table.
Services in TW14Planning permission drawings delivered by an MCIAT chartered team.
Building regulations drawings delivered by an MCIAT chartered team.
Loft conversion drawings delivered by an MCIAT chartered team.
House extension drawings delivered by an MCIAT chartered team.
Mansard roof extensions delivered by an MCIAT chartered team.
Garage conversion drawings delivered by an MCIAT chartered team.
Basement conversion drawings delivered by an MCIAT chartered team.
Structural calculations delivered by an MCIAT chartered team.
Measured building survey delivered by an MCIAT chartered team.
Party wall services delivered by an MCIAT chartered team.
Rear dormer drawings delivered by an MCIAT chartered team.
TW14 primarily covers Feltham / East Bedfont in Hounslow.
Decisions for TW14 are made by Hounslow Council. Standard Permitted Development rules apply for most rear extensions and loft conversions on terraced and semi-detached houses, unless the property is in a conservation area, is listed, or sits under an Article 4 Direction. Article 4 in Hounslow: No.
Building regulations drawings start at £950. There is no hourly billing, and every TW14 address gets its site survey free. For scale, the Land Registry logged 189 sales across the district during 2025 at a median of £425,000. Source: HM Land Registry Price Paid Data
From first call to decision, budget 12–14 weeks in TW14: survey in week one, design over weeks two and three, validation another one to two weeks, then the statutory eight-week determination. Hounslow keeps to the national norm on timing, deciding 91.2% of householder cases inside eight weeks. It is a much harder borough on outcome, granting 69.9% of them where London grants 83.0%.
Feltham and East Bedfont are not the Hounslow of the Chiswick guidebooks. This end of the borough is interwar and post-war suburbia: semis and short terraces on generous plots, laid out from the 1930s through to the 1960s. The VOA stock record at 31 March 2025 bears that out, with 20.2% of Hounslow's 111,270 dwellings dating from the 1930s and a further 11.8% from the two decades after the war. On plots of that shape the space for a rear extension or a loft conversion is usually there; what limits the scheme is the neighbour, not the fabric.
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What follows: the TW14 streets we draw in, the housing that dominates them, and the authority that validates a package at each address. The fees quoted are statutory England rates for 2026, and are not what a drawing package costs.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| TW14 | Feltham / East Bedfont | mixed Victorian and inter-war stock | TW14 sits wholly inside Hounslow, covering Feltham and East Bedfont. Hounslow Council determines the drawing package, and case officers test the address against the borough policies map — including the flood constraint layer, which for this district is close to blank. |
| W4 | Chiswick / Bedford Park | Arts & Crafts villas (listed) | Adjoining district to TW14, also inside Hounslow for drawing package purposes. |
| TW3 | Hounslow | 1930s semi-detached, post-war flats | Adjoining district to TW14, also inside Hounslow for drawing package purposes. |
| TW4 | Hounslow West | mixed stock | Adjoining district to TW14, also inside Hounslow for drawing package purposes. |
| TW5 | Heston / Cranford | mixed stock | Adjoining district to TW14, also inside Hounslow for drawing package purposes. |
Plot depth and roof pitch shift between one TW14 street and the next, and both change what a drawing package can achieve at a given address. One thing that barely shifts here is the flood picture: Environment Agency mapping places 0.6% of the district's 476 postcode units in Flood Zone 2, and none at all in Zone 3.
TW14 (Feltham / East Bedfont) conservation designations: Hounslow has 30 conservation areas, but the great majority of them sit at the eastern end of the borough, around Chiswick, Bedford Park and Brentford, which is the far side of Hounslow from Feltham. Check your own address on the council's map rather than assuming either way, because designation is what removes the permitted-development route: a designated house needs the £548 householder application and eight weeks, in place of the £249 prior approval at six. The other constraint that catches Hounslow owners elsewhere is not live in TW14. With 0.6% of postcode units in Flood Zone 2 and nothing in Zone 3, a Flood Risk Assessment is very unlikely to be triggered on a householder scheme here — against 9.74% of the borough's land area sitting in Zone 3.
No blanket Article 4 over TW14 (Feltham / East Bedfont): Hounslow Council has not withdrawn permitted development across TW14 (Feltham / East Bedfont), so a drawing package outside a TW14 (Feltham / East Bedfont) conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a TW14 owner wants on file.
What TW14 (Feltham / East Bedfont) is built from: Edwardian villas in Chiswick and Turnham Green; Georgian in Isleworth; 1930s semi-detached in Hounslow and Feltham; riverside new-build in Brentford. Chiswick is one of west London's most conservation-controlled areas; outer Hounslow is permissive suburban. That mix decides the drawing package route in TW14 (Feltham / East Bedfont) more than the postcode does, and it is what a Hounslow Council case officer reads first. A householder application costs £548 paid to Hounslow Council direct, with 8 weeks to a decision once validated.
Sources for this TW14 drawing package 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.
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