House Extension Drawings in Carshalton |

No Article 4 Direction covers Sutton, which keeps the Carshalton permitted-development route open on unlisted houses. The prevailing character of Carshalton — Victorian and Georgian village — sets what Sutton Council will accept near Carshalton Ponds and what it will resist. Of the 17 conservation areas Sutton designates, Carshalton Village and Beddington Park are the ones that most often change how a Carshalton project is routed. The designation map is read street by street in Carshalton.

The Carshalton Article 4 position is established at survey, before design. Everything on a Carshalton scheme is measured from the victorian terraces outward. The borough policy layer over every SM5 address is set out on Sutton planning. The Carshalton survey then carries into loft conversion drawings in Carshalton if the project runs on to construction.

Allow one to two weeks of London Borough of Sutton validation on any SM5 application. The Carshalton job starts with a laser survey, not a sketch.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

A Carshalton case only reaches committee if it draws significant objection. A Carshalton pack that misses a scale bar is a pack London Borough of Sutton will reject — ours do not.

Speaking to SM5 neighbours before submission avoids most of it. Drainage runs and manhole positions on the SM5 plot are picked up on the day.

Serve party wall notices early where SM5 neighbours share a flank wall — on Carshalton terraces they nearly always do. Once consent is granted, architectural drawings follows for the SM5 property.

Carshalton is characterised by victorian terraces, georgian villas, concentrated across SM5 in the Carshalton area. Carshalton rewards a survey-first approach: the victorian terraces rarely matches its own original drawings. For Carshalton owners this matters because georgian rear elevations here are usually the listed or locally listed face of the building, so a glazed link and a lightweight rear addition tend to fare better than a full-width box. On Carshalton plots that shows up in the section drawings. A Carshalton proposal that breaks the prevailing eaves line invites a refusal.

Basement work at a Carshalton address is judged on amenity, drainage and structure. If the SM5 job later needs planning permission for SM5 properties or building regulations drawings, the existing drawings already carry the measurements.

What the Carshalton drawing pack contains

Everything a Carshalton submission needs is in the list below.

• existing and proposed ground-floor plans for the Carshalton property
• proposed rear elevation
• long section through the extension
• site and block plans
• party wall position drawing

Local landmarks that shape a Carshalton application

• Rose Hill — front-to-back level changes that drive the Rose Hill section drawings.
• Wallington Green — front-to-back level changes that drive the Wallington Green section drawings.
• Carshalton Park — shared flank walls, so Carshalton Park party structure notices go out before work starts.
• Carshalton Ponds — it anchors the Carshalton streetscape argument in an officer report.
• Carshalton Boys Sports College — nearby victorian terraces takes its scale from this frontage.
• Carshalton College — Sutton Council weighs SM5 sightlines to it in the character assessment.

Getting to a Carshalton survey

Surveyors travel to SM5 addresses from the studio; the nearest stations are Carshalton, Carshalton Beeches, Wallington, Morden. Appointments are booked in Carshalton on weekdays and Saturdays, and the measured survey of a standard victorian terraces takes two to three hours.

Where Carshalton sits

Carshalton lies 9.5 miles (15.3 km) southwest of Charing Cross, on Ordnance Survey grid reference TQ275645, with the River Wandle shaping drainage and flood-risk questions on lower-lying SM5 plots. That is the reference the Carshalton site plan is drawn over. Source.

Practical detail for a Carshalton submission: the closest stations to a SM5 site are Carshalton and Carshalton Beeches and Wallington and Morden; correspondence uses CARSHALTON; dialling code 020; nearby listed fabric is Grade II Grove Park (Sutton). Site plans are drawn to the address as Sutton Council holds it.

Carshalton postcode coverage

Carshalton work spans SM5 (Carshalton), which Carshalton holds on its own, with the SM5 boundary setting which designations bite.

Streets and stations in Carshalton

Carshalton addresses we have drawn run to Rose Hill, Wallington Green and Carshalton Park. most Carshalton sites are within walking distance of Carshalton or Carshalton Beeches or Wallington. and Grade II Grove Park (Sutton) is listed, which pulls neighbouring SM5 proposals into a setting assessment.

Areas we cover around Carshalton

Carshalton sits in a patch that also takes in Croydon (CR0), Crystal Palace (SE19), Upper Norwood (SE19), South Norwood (SE25), Thornton Heath (CR7), Purley (CR8), and we work all of it as far as the Croydon boundary.

What moves the number on a Carshalton job is the victorian terraces itself — party walls, level changes, and whether Carshalton Village pulls a heritage statement into scope.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

On a Carshalton submission the statutory element is London Borough of Sutton's, not ours. London planning approval-rate dataset · Sutton planning · our London house extension drawings service · house extension drawings in Croydon.

MCIAT charter sits behind every Carshalton submission we make, and the same person who surveys the property signs the drawings off. Where a Carshalton case is borderline — a corner plot near Carshalton Ponds, a Carshalton Village frontage, a flank wall hard onto a SM5 neighbour — we buy pre-application advice from Sutton Council rather than gamble the statutory 8 weeks.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

The first step for a Carshalton owner is a measured survey, not a design. This Carshalton page was reviewed in August 2026.