Architectural drawings in TW4

Which postcode districts around TW4 do we cover for drawing package work?

Every TW4 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. TW4 fees below are the statutory England rates for 2026, not drawing package estimates.

Which TW4 neighbourhoods suit a drawing package best?

Roof pitch, wall build-up and plot depth change every few TW4 streets, and each one changes what a drawing package can achieve at that address.

• Bordering TW4: Chiswick (W4) — drawing package work in Chiswick means edwardian villas, victorian terraces. Chiswick is Edwardian villas, conservation. Hounslow Council decides the Chiswick application, and Chiswick House anchors the Chiswick location plan.
• Bordering TW4: Brentford (TW8) — a drawing package in Brentford starts from georgian fragments, victorian terraces, new-build, and Brentford reads as Georgian fragments, riverside new-build. in TW8. Hounslow Council assesses Brentford architectural drawings against its own Brentford character guidance, and the location plan we draw for Brentford references Kew Bridge.
• Bordering TW4: Isleworth (TW7) — a drawing package in Isleworth starts from georgian and victorian terraces, and Isleworth reads as Georgian and Victorian terraces. in TW7. Hounslow Council assesses Isleworth architectural drawings against its own Isleworth character guidance, and the location plan we draw for Isleworth references Old Isleworth.
• Bordering TW4: Hounslow (TW3) — a drawing package in Hounslow starts from 1930s semi-detached, post-war flats, and Hounslow reads as 1930s semi-detached, post-war flats. in TW3. Hounslow Council assesses Hounslow architectural drawings against its own Hounslow character guidance, and the location plan we draw for Hounslow references Hounslow Central.
• Bordering TW4: Feltham (TW13) — 1930s semi-detached, post-war estates defines Feltham, where 1930s semi-detached, post-war estates set what a drawing package can do. Any Feltham drawing package is validated by Hounslow Council, with Feltham station the usual Feltham reference point on the site plan.
• Bordering TW4: Hanworth (TW13) — a drawing package in Hanworth starts from 1930s semi-detached, and Hanworth reads as 1930s semi-detached. in TW13. Hounslow Council assesses Hanworth architectural drawings against its own Hanworth character guidance, and the location plan we draw for Hanworth references Hanworth Park.
• Bordering TW4: Turnham Green (W4) — a drawing package in Turnham Green starts from edwardian villas, and Turnham Green reads as Edwardian villas, conservation. in W4. Hounslow Council assesses Turnham Green architectural drawings against its own Turnham Green character guidance, and the location plan we draw for Turnham Green references Turnham Green.

What local planning policy applies to a drawing package in TW4?

Conservation areas covering TW4 (Hounslow West): Hounslow Council runs 30, and Brentford, Chiswick, Bedford Park are the ones TW4 (Hounslow West) owners meet most. A drawing package inside a TW4 (Hounslow West) conservation area loses permitted development, so the TW4 (Hounslow West) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Chiswick a drawing package is judged on the street elevation first.

TW4 (Hounslow West) permitted development status: there is no borough-wide direction from Hounslow Council, so a drawing package at a TW4 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a TW4 (Hounslow West) sale to argue it later.

The building fabric around TW4 (Hounslow West): 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. A drawing package in TW4 (Hounslow West) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Hounslow Council.

Who decides a drawing package on the edge of TW4?

• Hillingdon — adjoining TW4 (Hounslow West), with 29 conservation areas centred on HA4. A drawing package on the far side of the TW4 (Hounslow West) line is determined by Hillingdon Council, so the TW4 (Hounslow West) quote for architectural drawings is checked against Hillingdon guidance before it is issued.
• Ealing — cross the TW4 (Hounslow West) boundary and Ealing Council takes the drawing package instead, applying 30 conservation areas of its own around W3. We re-price architectural drawings at the TW4 (Hounslow West) edge because Ealing policy and Hounslow policy rarely align on drawing package depth.
• Hammersmith and Fulham — the Hammersmith and Fulham boundary runs against Hounslow, so a drawing package a street from TW4 (Hounslow West) is decided by Hammersmith & Fulham Council instead. Hammersmith and Fulham runs 45 conservation areas across W6 and its neighbours, which is why architectural drawings priced for TW4 (Hounslow West) are re-checked against Hammersmith and Fulham policy whenever the TW4 (Hounslow West) address sits on that edge.
• Richmond upon Thames — cross the TW4 (Hounslow West) boundary and Richmond Council takes the drawing package instead, applying 72 conservation areas of its own around SW13. We re-price architectural drawings at the TW4 (Hounslow West) edge because Richmond upon Thames policy and Hounslow policy rarely align on drawing package depth.

Sources for this TW4 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.