Architectural drawings in TW5

Which postcode districts around TW5 do we cover for drawing package work?

Every TW5 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. TW5 fees below are the statutory England rates for 2026, not drawing package estimates.

What changes about a drawing package in each part of TW5?

Roof pitch, wall build-up and plot depth change every few TW5 streets, and each one changes what a drawing package can achieve at that address.

• Bordering TW5: Chiswick (W4) — a drawing package in Chiswick starts from edwardian villas, victorian terraces, and Chiswick reads as Edwardian villas, conservation. in W4. Hounslow Council assesses Chiswick architectural drawings against its own Chiswick character guidance, and the location plan we draw for Chiswick references Chiswick House.
• Bordering TW5: 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 TW5: 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 TW5: Hounslow (TW3) — drawing package work in Hounslow means 1930s semi-detached, post-war flats. Hounslow is 1930s semi-detached, post-war flats. Hounslow Council decides the Hounslow application, and Hounslow Central anchors the Hounslow location plan.
• Bordering TW5: Feltham (TW13) — a drawing package in Feltham starts from 1930s semi-detached, post-war estates, and Feltham reads as 1930s semi-detached, post-war estates. in TW13. Hounslow Council assesses Feltham architectural drawings against its own Feltham character guidance, and the location plan we draw for Feltham references Feltham station.
• Bordering TW5: Hanworth (TW13) — 1930s semi-detached defines Hanworth, where 1930s semi-detached set what a drawing package can do. Any Hanworth drawing package is validated by Hounslow Council, with Hanworth Park the usual Hanworth reference point on the site plan.
• Bordering TW5: 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.

How do conservation areas and Article 4 affect a drawing package in TW5?

How designation changes a TW5 (Heston / Cranford) drawing package: Hounslow Council maintains 30 conservation areas, including Bedford Park, Old Isleworth, Brentford. Inside any of them a TW5 (Heston / Cranford) drawing package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Chiswick sets the tone for TW5 (Heston / Cranford) casework.

TW5 (Heston / Cranford) permitted development status: there is no borough-wide direction from Hounslow Council, so a drawing package at a TW5 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a TW5 (Heston / Cranford) sale to argue it later.

TW5 (Heston / Cranford) housing stock: 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. Read that before choosing a drawing package route in TW5 (Heston / Cranford) — construction, not postcode, sets what is achievable. Hounslow Council charges £548 for a householder application and has 8 weeks to determine it.

Which neighbouring authorities border TW5?

• Hillingdon — the Hillingdon boundary runs against Hounslow, so a drawing package a street from TW5 (Heston / Cranford) is decided by Hillingdon Council instead. Hillingdon runs 29 conservation areas across HA4 and its neighbours, which is why architectural drawings priced for TW5 (Heston / Cranford) are re-checked against Hillingdon policy whenever the TW5 (Heston / Cranford) address sits on that edge.
• Ealing — adjoining TW5 (Heston / Cranford), with 30 conservation areas centred on W3. A drawing package on the far side of the TW5 (Heston / Cranford) line is determined by Ealing Council, so the TW5 (Heston / Cranford) quote for architectural drawings is checked against Ealing guidance before it is issued.
• Hammersmith and Fulham — adjoining TW5 (Heston / Cranford), with 45 conservation areas centred on W6. A drawing package on the far side of the TW5 (Heston / Cranford) line is determined by Hammersmith & Fulham Council, so the TW5 (Heston / Cranford) quote for architectural drawings is checked against Hammersmith and Fulham guidance before it is issued.
• Richmond upon Thames — cross the TW5 (Heston / Cranford) 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 TW5 (Heston / Cranford) edge because Richmond upon Thames policy and Hounslow policy rarely align on drawing package depth.

Sources for this TW5 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.