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Architectural drawings Wandsworth — kitchen side-return extension interior in a Victorian terrace
Wandsworth · Planning Drawings & Applications

Planning permission & architectural drawings in Wandsworth

Battersea terraces, Putney villas and the streets between the commons — we prepare planning drawings Wandsworth Council can approve, delivered in days and revised free until you have your decision.

★★★★★ Rated 4.9/5 by London homeowners96% approval rate · 2,400+ drawings delivered
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Four steps to a Wandsworth decision

A fixed process built around how Wandsworth Council validates and decides householder applications.

  1. 1

    Free approval check

    We check your street against Wandsworth's conservation areas and Article 4 directions, and score your odds from live borough decision data.

  2. 2

    Measured survey

    Accurate existing plans, elevations and roof geometry — essential in Wandsworth, where mansard and dormer schemes are judged in centimetres.

  3. 3

    Design & drawing pack

    Chartered designers draw to Wandsworth's housing design guidance: party walls, butterfly roofs and neighbour daylight resolved on the page.

  4. 4

    Submission & follow-through

    We submit, manage validation and case-officer queries, and revise the drawings free until the council issues its decision.

Drawings built for Wandsworth Council's terraces

Wandsworth is one of London's great Victorian boroughs. The grid of terraces between Wandsworth Common and Clapham Common — the streets around Northcote Road that estate agents call 'between the commons' — plus Putney, Southfields, Earlsfield, Balham and Battersea give the borough a remarkably consistent housing stock: two- and three-storey terraces on narrow plots, many with butterfly roofs and back additions. Consistency cuts both ways: Wandsworth Council's case officers know these house types intimately, and their expectations for extensions and roof alterations are correspondingly precise.

The borough's classic projects are the side-return kitchen extension, the rear-dormer or mansard loft conversion, and increasingly the basement excavation. Each has a known set of pressure points — party-wall relationships, the neighbour's daylight across a shared side return, roofline consistency along a terrace — and our drawings resolve them explicitly, with dimensions and daylight tests rather than hopeful shading.

We check conservation designations before drawing: Wandsworth has numerous conservation areas, including around Putney Heath and the Northcote Road area, and several carry Article 4 directions — so permitted development should never be assumed until the address is verified.

Isometric drawing of a side-return and rear extension on a Wandsworth Victorian terrace

Why drawing precision matters more in Wandsworth

Because the borough's terraces are so uniform, deviation is conspicuous. A dormer thirty centimetres too tall, a parapet that breaks a shared roofline, an extension that projects past the neighbouring back addition — Wandsworth's case officers spot these instantly, and so do neighbours, whose objections carry weight where amenity is genuinely affected. The drawings therefore need to prove conformity, not just assert it: we show the neighbouring properties on street and rear elevations, dimension the relationship to next door's back addition, and plot the daylight angles officers apply when overlooking or overshadowing is raised.

Basements deserve a special mention. Wandsworth was one of the first boroughs to develop detailed basement policy after a wave of excavations south of the river, and applications are expected to arrive with proper sections, lightwell details and structural method context. We prepare the drawing side of that package and coordinate the specialist inputs, so the submission is complete on day one rather than assembled piecemeal under officer pressure.

The same discipline pays off after permission too. Because our planning drawings are measured-survey accurate, the step up to building regulations drawings and structural calculations is seamless — no redrawing, no discrepancies between what was approved and what gets built, and no awkward conversations with building control halfway through the job.

Do I need planning permission in Wandsworth?

Many Wandsworth projects do not need planning permission — single-storey rear and side-return extensions and some loft conversions fall under permitted development within national limits. You will usually need a full application to Wandsworth Council if any of these apply:

  • The extension projects more than 6m beyond the rear wall of a terrace or semi, or 3m without prior approval
  • You are building a wraparound that combines side and rear extension beyond PD limits
  • You want a mansard roof extension — almost always a full application in Wandsworth
  • Your home is in a conservation area, and several Wandsworth conservation areas carry Article 4 directions — check before relying on PD
  • The property is a flat or maisonette, common across the borough's converted terraces and mansion blocks
  • You are excavating a basement, which in Wandsworth involves detailed technical scrutiny
  • The house has already been extended and the permitted development allowance is spent

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Wandsworth's decision record, live

The figures below are Wandsworth Council's actual approval statistics, drawn from official planning data. In a borough where officers assess the same Victorian house types week in, week out, the difference between approval and refusal is rarely the idea — it is whether the drawings demonstrate the scheme respects the terrace, the party wall and the neighbour's light. That is what a professional pack does, and it is why well-drawn applications consistently outperform the borough baseline.

Source: MHCLG planning application statistics (householder decisions, rolling year). Compare every borough on our London approval-rate league table.

88%householder applications approved in Wandsworth
87%national average — Wandsworth is 1 point above the national average

The Wandsworth projects we draw most

Side-return extensions

The between-the-commons classic — glazed infills over the old side alley, drawn with party-wall lines, boundary heights and neighbour daylight dimensioned.

Mansard & dormer lofts

Wandsworth's terraces suit mansards, and the council judges them on profile, set-back and matching neighbours. We draw the roof geometry precisely.

Rear extensions

Full-width kitchen-diners across the back addition, under PD, prior approval or full application depending on depth and designation.

Basement conversions

Lightwells, front vaults and full excavations — drawn with the sections and technical detail Wandsworth's basement policies demand.

Flat alterations

The borough's converted terraces and mansion flats need full applications for external changes — we handle drawings, applications and lease plans.

Building regs & structural packs

Once planning lands, we produce building regulation drawings and coordinate structural calculations so builders can price and start.

Planning permission in Wandsworth: the numbers

Wandsworth Council decides householder applications for Wandsworth, and its recent record and the permitted-development limits that apply here set out below give Battersea homeowners a realistic starting point before any drawing begins.

MeasureFigure for Wandsworth
Wandsworth Council householder approval rate88%
England-wide householder benchmark87%
Loft dormer permitted-development limit (Class B)40m³ terrace / 50m³ semi or detached
Single-storey rear extension depth (Class A)3m terrace / 4m detached
Dominant housing eraVictorian (1837–1901) and Edwardian (1901–1910)
Statutory decision period8 weeks
Conservation / Article 4 statusArticle 4 direction in force; PD removed in Wandsworth Common, Nightingale Triangle and Tonsleys

Wandsworth runs 1 point above the national average. Approval rate: MHCLG householder planning statistics for Wandsworth Council; permitted-development limits: GPDO 2015, Schedule 2, Part 1 (Classes A–B).

Frequently asked questions

How long does Wandsworth Council take to decide a householder application?

The statutory period is eight weeks from validation, and most Wandsworth householder applications are decided within it. Basement schemes and conservation-area applications can take longer because of technical review and consultation. We respond to case-officer queries immediately so no time is lost on our side.

Do I need planning permission for a side-return extension in Wandsworth?

Not always — a single-storey side-return infill can fall within permitted development if it stays inside the width, height and depth limits. Wraparounds that combine side and rear usually need a full application, as do flats and Article 4 streets. We verify your route before any drawing starts.

Are mansard roof extensions allowed in Wandsworth?

Frequently, yes — mansards suit the borough's Victorian terraces and many streets have established precedents. They almost always need a full planning application, and officers judge profile, set-back behind the parapet and consistency with neighbouring mansards closely. Precise roof geometry on the drawings is what wins these.

What drawings does Wandsworth Council require?

Existing and proposed floor plans and elevations at 1:100 or 1:50, a site location plan at 1:1250 with the site edged red, and a block plan. Roof and basement schemes add sections; basements also need technical statements. Our packs are assembled against the council's validation checklist.

Is my street in a Wandsworth conservation area?

Possibly — the borough has numerous conservation areas, including around Putney Heath and the Northcote Road area, and several carry Article 4 directions restricting permitted development. We check your address against the council's designation maps during the free approval check, before you commit to anything.

What if Wandsworth refuses my application?

We amend the drawings and resubmit free of charge. Wandsworth refusals typically turn on roof profile, terrace consistency or neighbour amenity — usually fixable with targeted adjustments. A repeat application within twelve months of the refusal normally attracts no further council fee.

Planning approval report

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