Single-storey, double-storey, rear and side extension drawings for Stockport homes — measured to Stockport Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Stockport Council granted 92% of the householder planning decisions it made in its latest published year — 5 points above the 87% England-wide householder average. Because Stockport withdrew from the Places for Everyone joint plan, householder schemes are still decided against a dated 2006 UDP pending a new Local Plan, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901), Edwardian (1901–1910), interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. Stockport carries at least one Article 4 direction, and conservation areas including Heaton Moor, Heaton Mersey Village and Marple Bridge remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Stockport is determined against an 8-week statutory target.
Heaton Moor (Victorian and Edwardian villas in a protected conservation area), Heaton Mersey (the Heaton Mersey Village conservation area of period villas and cottages), Bramhall (affluent interwar semi-detached suburbia on leafy plots), Cheadle Hulme (interwar and postwar semis around the village core), Marple (stone-built cottages and canal-side housing on the Pennine fringe) and Reddish (dense Victorian brick terraces near the mill heritage) — these are the Stockport pockets our drawings cover most. Heritage designations here include Heaton Moor, Heaton Mersey Village, Marple Bridge, Cheadle Village, Davenport Park and Mill Brow. Stockport Council weighs each proposal against the Stockport Unitary Development Plan Review (adopted 2006) and the emerging Stockport Local Plan (Stockport is not part of the Places for Everyone joint plan), where the borough's exceptionally dense network of conservation-area Article 4 directions catches routine works — windows, rooflights, porches — that would be permitted development elsewhere. Converted villas and terraced flats are common across the Heatons and Edgeley, and flats carry no householder permitted-development rights.. On roofs the borough is gabled slate roofs on the Victorian villas and terraces, hipped roofs on the interwar semis and stone-flagged pitched roofs on the older Marple cottages, over Victorian and Edwardian villas and terraces across the Heatons, interwar semi-detached houses in Bramhall and Cheadle Hulme, stone-built cottages and terraces around Marple and Mellor and Victorian brick terraces in Reddish and Edgeley.
Stockport homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Victorian and Edwardian villas and terraces across the Heatons, interwar semi-detached houses in Bramhall and Cheadle Hulme, stone-built cottages and terraces around Marple and Mellor and Victorian brick terraces in Reddish and Edgeley, so a Victorian terrace usually wants a rear or side-return infill, while an interwar semi has room for a wider single-storey wrap or a two-storey side addition. Stockport Council judges every one of them against the Stockport Unitary Development Plan Review (adopted 2006) and the emerging Stockport Local Plan (Stockport is not part of the Places for Everyone joint plan), weighing footprint, height and the impact on the house next door before it looks at the elevations.
That is why the drawings decide the outcome. We set the extension depth against the permitted-development limits precisely, keep the eaves and ridge within the allowances, and plot the 45-degree daylight lines to the neighbours' windows so the case officer can see the amenity test is passed. Because Stockport withdrew from the Places for Everyone joint plan, householder schemes are still decided against a dated 2006 UDP pending a new Local Plan, so we design around it from the first sketch rather than discover it at validation.
Stockport also protects whole streets — Heaton Moor, Heaton Mersey Village, Marple Bridge, Cheadle Village, Davenport Park and Mill Brow among them. Stockport has thirty-seven conservation areas — the most in Greater Manchester — and around thirty carry Article 4 directions removing permitted-development rights on windows, doors, roofing materials, chimneys and boundary walls, with further Article 4(1) directions over Cheadle Village, Davenport Park and Mill Brow. On designated land the larger-home extension route and most side extensions stop being permitted development, so we confirm your address against those layers before drawing a line.
Plenty of Stockport extensions are permitted development and need no planning application — a single-storey rear extension within the depth and height limits is the common case. You will normally need to apply to Stockport Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Stockport Council's officers weigh first — and submit a validation-complete pack, whether that is a lawful development certificate, a prior-approval notification or a full householder application.
Below is Stockport Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Stockport grants a high share of householder applications, though its unusually broad conservation-area Article 4 coverage and an ageing development plan are the defining constraints. A complete, policy-literate extension pack anticipates those pressure points before submission, which is why professionally drawn applications are decided faster and refused less often than DIY ones.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Across Heaton Moor, Heaton Mersey and Bramhall, the extension that lands most often is the single-storey rear addition — a glazed kitchen-diner across the back of the house, kept within the permitted-development depth or taken to a full application where the ground floor wants more. On the borough's victorian and edwardian villas and terraces across the heatons, a side-return infill frequently pairs with it to square off the plan; on wider victorian brick terraces in reddish and edgeley, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The borough's exceptionally dense network of conservation-area Article 4 directions catches routine works — windows, rooflights, porches — that would be permitted development elsewhere. We size the extension to the amenity and daylight tests, match the roof and materials to the host house, and keep enough garden to satisfy Stockport Council's space standards — so the scheme answers the borough's questions before an objection can raise them. Where permitted-development rights are used up or removed, we prepare the householder application to the council's extension design guidance instead.
We draw extensions on every street in the borough. A few of the neighbourhoods where Stockport projects come up most often:
Extension drawings for Heaton Moor's Victorian and Edwardian villas in a protected conservation area — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
Extension drawings for Heaton Mersey's the Heaton Mersey Village conservation area of period villas and cottages — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
Extension drawings for Bramhall's affluent interwar semi-detached suburbia on leafy plots — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
Extension drawings for Cheadle Hulme's interwar and postwar semis around the village core — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
Extension drawings for Marple's stone-built cottages and canal-side housing on the Pennine fringe — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
Extension drawings for Reddish's dense Victorian brick terraces near the mill heritage — footprint-checked, daylight-tested and drawn to Stockport Council's guidance.
The right extension in Stockport depends on your house type and how much garden you can give up. This is how the main options compare on planning route and what they add.
| Extension type | Permitted development? | What it adds | What Stockport Council checks |
|---|---|---|---|
| Single-storey rear | Often, within 3m/4m depth (6m/8m via prior approval) | Bigger kitchen-diner across the back | Depth, height, neighbour daylight (45°) |
| Side-return infill | Sometimes, if within width and height limits | Squares off an L-shaped ground floor | Width vs the original house, glazing to boundary |
| Two-storey rear/side | No — full application | Extra bedroom or bathroom above | Bulk, overlooking, 7m rear-boundary gap |
| Wraparound (rear + side) | No — full application | Whole-width open-plan ground floor | Combined footprint and garden retained |
Route depends on your street — conservation areas such as Heaton Moor and Heaton Mersey Village and Article 4 directions can remove permitted-development rights.
A fixed process built around how Stockport Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Stockport postcode and house type. We confirm your conservation and Article 4 status, how much permitted-development depth you have left, and score your odds against live Stockport Council decisions.
We measure the existing footprint, floor and eaves levels, boundary distances and the neighbours' window positions — the numbers the depth limits and daylight tests depend on.
Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Stockport Council's extension design guidance.
We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Stockport Council issues its decision.
Not always. A single-storey rear extension up to 3 metres deep on a terrace or semi, or 4 metres on a detached house, and no higher than 4 metres, is usually permitted development. In Stockport you will need to apply to Stockport Council for two-storey extensions, side extensions wider than half the house, anything forward of the front wall, deeper rear extensions under the larger-home prior-approval route, and any extension in a conservation area such as Heaton Moor and Heaton Mersey Village.
Standard permitted development allows 3 metres on a terraced or semi-detached house and 4 metres on a detached one. The larger-home extension scheme can double that to 6 or 8 metres, but it needs a prior-approval notification to Stockport Council and a neighbour-consultation period, and it does not apply on designated land such as Stockport's conservation areas. We confirm which route your property qualifies for before drawing.
Two-storey and double-storey extensions almost always need a full householder application to Stockport Council, because they fall outside permitted development on most homes. The council looks closely at bulk, overlooking of neighbours and the 7-metre gap a two-storey rear extension must keep from the rear boundary. We design to those tests and show the daylight and privacy angles on the drawings.
A householder planning application in Stockport runs to a statutory eight-week target, a larger-home prior-approval notification to around six weeks including the neighbour-consultation period, and a lawful development certificate to eight weeks. Incomplete submissions stall at validation, so we submit a complete pack and manage officer queries to keep the decision on schedule. Stockport Council is the decision-maker.
Yes — planning permission and building regulations are separate consents, and almost every extension needs both. Planning governs whether you can build it; building control governs how it is built, covering structure, insulation, drainage and fire safety. We prepare the building-regulations drawings alongside the planning set so Stockport Council's building control or an approved inspector can sign the work off.
Every house and brief is different, so we price each Stockport extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Stockport Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.
Answer five quick questions and get a free planning score for your exact address — instantly. Then, if you want the full picture, unlock the detailed analysis: your council's live approval rates, local precedents, constraints on your street and a step-by-step route to permission.
Same fixed quotes, same fast drawings — wherever your project is.