Richmond / Kew — covered by Richmond Council.
Planning 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.


TW9 primarily covers Richmond / Kew in Richmond upon Thames.
Decisions for TW9 are made by Richmond 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 Richmond upon Thames: No.
Building regs from £950. We do not charge hourly. Free site survey across all TW9 addresses.
From first call to planning decision: typically 12–14 weeks. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination. Richmond Council timelines align with the national norm.
Richmond / Kew in TW9 is characterised by the housing stock of Richmond upon Thames — broadly georgian in richmond green and twickenham.

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Every TW9 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. TW9 fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| TW9 | Richmond / Kew | Georgian terraces, Victorian villas | TW9 covers Richmond / Kew only; Richmond Council handles the drawing package. |
| TW9 | Richmond | Georgian terraces, Victorian villas | Richmond sits inside TW9; drawing package proposals here are determined by Richmond Council. |
| TW9 | Kew | Georgian and Edwardian villas | Kew sits inside TW9; drawing package proposals here are determined by Richmond Council. |
| SW13 | Barnes | Georgian villas, Edwardian terraces | Adjoining district to TW9, also inside Richmond upon Thames for drawing package purposes. |
| SW14 | Mortlake / East Sheen | Edwardian villas, 1930s semi-detached | Adjoining district to TW9, also inside Richmond upon Thames for drawing package purposes. |
| TW1 | Twickenham | Georgian fragments, Victorian terraces, Edwardian villas | Adjoining district to TW9, also inside Richmond upon Thames for drawing package purposes. |
| TW2 | Twickenham / Whitton | Georgian fragments, Victorian terraces, Edwardian villas | Adjoining district to TW9, also inside Richmond upon Thames for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few TW9 streets, and each one changes what a drawing package can achieve at that address.
Conservation areas covering TW9 (Richmond / Kew): Richmond Council runs 72, and Richmond Green, Kew Green, Hampton Wick are the ones TW9 (Richmond / Kew) owners meet most. A drawing package inside a TW9 (Richmond / Kew) conservation area loses permitted development, so the TW9 (Richmond / Kew) submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Hampton Wick a drawing package is judged on the street elevation first.
TW9 (Richmond / Kew) permitted development status: there is no borough-wide direction from Richmond Council, so a drawing package at a TW9 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a TW9 (Richmond / Kew) sale to argue it later.
The building fabric around TW9 (Richmond / Kew): Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames. Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised. A drawing package in TW9 (Richmond / Kew) 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 Richmond Council.
Sources for this TW9 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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