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Free 2026 London Planning Report — Floor plans in Sutton: the starting point for a wraparound extension

The Causeway in Carshalton, a tree-lined road of interwar houses with mock-Tudor gables
Sutton · London

Floor plans in Sutton: the starting point for a wraparound extension

A single storey or double storey wrap around extension in Sutton starts with an accurate plan of the house as it stands. Our measured floor plans start at £275, fixed fee, drawn to an identified scale with north shown, ready to build the extension drawings on.

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Existing plans first, extension drawings second

A wraparound extension fills the side and rear of a house, so every wall you attach to has to be on the survey: the rear line, the side passage, the boundary and any projecting bay. A wall drawn in the wrong place on the survey carries the same error into the proposed plan.

This page covers the measured plans only. The design side, including single and double storey options, is on our wraparound extension drawings in Sutton page, and the build budget is in the wraparound extension cost guide.

What the fixed fee is

For scaled floor plans for sale, letting or lease, the starting fixed fee is £275. A wraparound project usually adds elevations, sections and a site plan, which are quoted together; the pricing page shows how the fees are built.

Suburban high street around a war memorial and a mature tree
Edwardian gabled houses on a residential street with spring blossom

Our analysis of the MHCLG Planning Data Platform lists 15 entries on the national register of conservation areas for Sutton.

Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026). www.planning.data.gov.uk

Sutton's record on householder applications

Our analysis of the MHCLG planning application statistics (table PS2, released 24 Sep 2026) shows Sutton council made 601 householder decisions in the four quarters from 2025 Q3 to 2026 Q2, granting 92%. Excluding prior approvals, 95% were decided within 8 weeks.

Those are borough-wide results, not a prediction for your address.

When Sutton appeals go the other way

Of 139 householder appeals decided for Sutton between 2021 and 2026, 41% were allowed, according to our analysis of the Planning Inspectorate Casework Database (release 2609). That is a count of past decisions, not a forecast.

An appeal is argued on drawings and measurements, which is the reason to survey carefully before the design starts.

DrawingsDirect sample sheet: existing ground and first floor plans of an invented house at 1:50
Sample drawing

Designation checks and the scale of the plan

Our analysis of the MHCLG Planning Data Platform lists 15 entries on the national register of conservation areas for Sutton. Check the council's conservation area map for your road.

Planning practice guidance also asks for plans drawn to an identified scale, and a location plan typically at 1:1250 or 1:2500; see Making an application. If the house was extended in the past without a record, a certificate of lawful development may be the route: our analysis of table PS1 counts 643 certificates decided in Sutton over the eight quarters to 2026 Q2. The planning permission in Sutton page explains the usual routes.

Data

Sources

Every figure on this page, where it comes from and a link to the original.

FigureSourceLink
£275DrawingsDirect starting fixed fee for scaled floor plans for sale, letting or lease, from the published price listdrawingsdirect.co.uk
identified scalePlanning practice guidance, Making an application, paragraph 023: plans and drawings must be drawn to an identified scale and plans must show the direction of north (source wording: "must be drawn to an identified scale")www.gov.uk
1:1250Planning practice guidance, Making an application, paragraph 024: a location plan should typically be at a scale of 1:1250 or 1:2500 (source wording: "The scale should typically be 1:1250 or 1:2500")www.gov.uk
601Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2)www.gov.uk
92%Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2)www.gov.uk
95%Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2)www.gov.uk
139Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609))www.gov.uk
41%Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609))www.gov.uk
15Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026)www.planning.data.gov.uk
643Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2)www.gov.uk
FAQ

Questions people ask

Do I need floor plans before a single storey wrap around extension in Sutton?
Yes. The designer needs the existing layout and measurements to draw the extension against, and a planning application normally shows existing and proposed plans side by side.
Single or double storey wraparound: what changes for the drawings?
A single storey one adds ground floor space at the side and rear. A double storey one adds a floor above as well, which changes the drawings needed and how the council assesses it.
How much are the measured plans?
The fixed fee for the plans begins at £275, and we quote the extension drawings alongside.

Photographs: Christopher Hilton (CC BY-SA 2.0).