Tooting / Earlsfield — covered by Wandsworth 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.


SW17 primarily covers Tooting / Earlsfield in Wandsworth. It also touches Merton.
Decisions for SW17 are made by Wandsworth 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 Wandsworth: Yes.
Building regs from £950. We do not charge hourly. Free site survey across all SW17 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. Wandsworth Council timelines align with the national norm.
Tooting / Earlsfield in SW17 is characterised by the housing stock of Wandsworth — broadly extensive victorian terraced streets — the classic london side-return extension opportunity.

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Every SW17 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. SW17 fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| SW17 | Tooting / Earlsfield | Edwardian terraces | SW17 straddles a boundary: Tooting / Earlsfield addresses fall to Wandsworth Council or Merton Council, so confirm which authority validates the drawing package before submitting SW17 drawings. |
| SW17 | Tooting | Edwardian terraces | Tooting sits inside SW17; drawing package proposals here are determined by Wandsworth Council. |
| SW17 | Wandsworth Common | Victorian villas and terraces | Wandsworth Common sits inside SW17; drawing package proposals here are determined by Wandsworth Council. |
| SW11 | Battersea / Clapham Junction | Victorian terraces, mansion blocks | Adjoining district to SW17, also inside Wandsworth for drawing package purposes. |
| SW12 | Balham | Victorian and Edwardian terraces | Adjoining district to SW17, also inside Wandsworth for drawing package purposes. |
| SW15 | Putney / Roehampton | Edwardian terraces, Victorian villas, mansion blocks | Adjoining district to SW17, also inside Wandsworth for drawing package purposes. |
| SW19 | Wimbledon / Colliers Wood | Victorian villas, Edwardian terraces | Adjoining district to SW17, also inside Merton for drawing package purposes. |
| SW20 | Raynes Park | Victorian villas, Edwardian terraces | Adjoining district to SW17, also inside Merton for drawing package purposes. |
| SM4 | Morden | 1930s semi-detached, post-war flats | Adjoining district to SW17, also inside Merton for drawing package purposes. |
| CR4 | Mitcham | 1930s semi-detached, post-war estates | Adjoining district to SW17, also inside Merton for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few SW17 streets, and each one changes what a drawing package can achieve at that address.
How designation changes a SW17 (Tooting / Earlsfield) drawing package: Wandsworth Council maintains 45 conservation areas, including Wandsworth Common, Clapham Common West, Tonsley. Inside any of them a SW17 (Tooting / Earlsfield) 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. Magdalen Park sets the tone for SW17 (Tooting / Earlsfield) casework.
Article 4 and your SW17 (Tooting / Earlsfield) drawing package: Article 4 for HMO conversions covering the whole borough. At a SW17 address that matters twice over, because Wandsworth Council applies the direction unevenly across SW17 (Tooting / Earlsfield) — we read the SW17 (Tooting / Earlsfield) policies map for the exact SW17 address before quoting architectural drawings.
What SW17 (Tooting / Earlsfield) is built from: Extensive Victorian terraced streets — the classic London side-return extension opportunity; Edwardian villas around the commons; 1930s semi-detached in Southfields. Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications. That mix decides the drawing package route in SW17 (Tooting / Earlsfield) more than the postcode does, and it is what a Wandsworth Council case officer reads first. A householder application costs £548 paid to Wandsworth Council direct, with 8 weeks to a decision once validated.
How designation changes a SW17 (Tooting / Earlsfield) drawing package: Merton Council maintains 28 conservation areas, including Wimbledon Common, Wimbledon Village, John Innes. Inside any of them a SW17 (Tooting / Earlsfield) 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. Wimbledon Village sets the tone for SW17 (Tooting / Earlsfield) casework.
Article 4 and your SW17 (Tooting / Earlsfield) drawing package: Merton Council has made no borough-wide direction, so permitted development for a drawing package in SW17 (Tooting / Earlsfield) generally survives outside SW17 (Tooting / Earlsfield) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SW17 owner records that a drawing package was lawful.
What SW17 (Tooting / Earlsfield) is built from: Victorian villas in Wimbledon; Edwardian terraces in Tooting and Colliers Wood; 1930s semi-detached in Morden and Raynes Park; post-war flats in Mitcham. Wimbledon is heavily conservation-controlled; outer Merton (Morden, Mitcham) is permissive. That mix decides the drawing package route in SW17 (Tooting / Earlsfield) more than the postcode does, and it is what a Merton Council case officer reads first. A householder application costs £548 paid to Merton Council direct, with 8 weeks to a decision once validated.
Sources for this SW17 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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