Back-of-house extension drawings for Stockport homes — the glazed kitchen-diner across the rear, drawn to Stockport Council's depth and daylight limits, delivered in days and revised free until your decision, with a free approval-odds check first.
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.
The rear extension is the workhorse of Stockport home improvement — it is how a dark back kitchen becomes an open family room facing the garden. Because 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, most back walls sit close to a neighbour on at least one side, and that proximity, not the design, is what Stockport Council scrutinises. The council reads the 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), and the first line an officer draws is the 45-degree splay from the neighbour's nearest window.
So the drawings live or die on geometry. We set the depth against the exact permitted-development figure, hold the eaves and the flat-roof or lantern build-up under the 4-metre height ceiling, and show the projection tested against both the 45-degree plan angle and the 25-degree section angle to the neighbouring windows. 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 the rear elevation is composed around it rather than corrected after an objection.
Where the property sits in a conservation area — Heaton Moor, Heaton Mersey Village, Marple Bridge, Cheadle Village, Davenport Park and Mill Brow among Stockport's — the larger-home extension route is switched off and even a modest rear addition needs consent. 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. We confirm the designation before the survey.
Many single-storey rear extensions in Stockport are permitted development and need no application. You will normally need to apply to Stockport Council, or use the larger-home prior-approval route, if any of these apply:
We draw the depth, the roof build-up and the daylight splays to each neighbour on the page — the tests Stockport Council's officers apply first — and submit a validation-complete pack, whether that is a lawful development certificate, a larger-home prior-approval notice or a full householder application.
Below is Stockport Council's real householder decision record, taken 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. Rear extensions turn most often on neighbour daylight and depth, so a drawing pack that proves those tests upfront is decided faster and refused less often than a DIY submission.
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 approved rear extension is typically a single-storey glazed box within the depth limit, roofed either flat with a lantern or in a shallow mono-pitch, and finished in brick or render to match the host wall. On the borough's victorian and edwardian villas and terraces across the heatons, keeping the projection to the permitted-development figure often avoids an application entirely; where owners want the full 6 metres, the larger-home route succeeds when the neighbour-consultation period passes without a sustained objection.
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 keep the extension inside the daylight splays, set any glazed roof below the first-floor cill, and retain the garden depth Stockport Council expects — so the back elevation answers the amenity case before a neighbour can lodge one. Two-storey rear extensions we draw with the 7-metre boundary gap and privacy screening resolved on the plan.
We draw rear extensions on every street in the borough. A few of the neighbourhoods where Stockport back-of-house projects come up most often:
Rear extension drawings for Heaton Moor's Victorian and Edwardian villas in a protected conservation area — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
Rear extension drawings for Heaton Mersey's the Heaton Mersey Village conservation area of period villas and cottages — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
Rear extension drawings for Bramhall's affluent interwar semi-detached suburbia on leafy plots — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
Rear extension drawings for Cheadle Hulme's interwar and postwar semis around the village core — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
Rear extension drawings for Marple's stone-built cottages and canal-side housing on the Pennine fringe — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
Rear extension drawings for Reddish's dense Victorian brick terraces near the mill heritage — depth-checked, daylight-tested and drawn to Stockport Council's guidance.
How far you can extend at the back in Stockport depends on your house type and the route you take. This is how the options compare.
| Route | Depth allowed | Consent needed | What Stockport Council checks |
|---|---|---|---|
| Standard permitted development | 3m terrace/semi · 4m detached | Lawful development certificate (optional) | Depth, 4m height, materials |
| Larger-home prior approval | 6m terrace/semi · 8m detached | Prior-approval notice + neighbour consultation | Neighbour objections on amenity |
| Full householder application | Beyond the above, or two-storey | Full planning permission | Daylight (45°/25°), bulk, garden retained |
| Conservation area | Case by case | Full planning permission | Character, roof form, boundary treatment |
The larger-home route is switched off on designated land — conservation areas such as Heaton Moor and Heaton Mersey Village and Article 4 streets need a full application.
A fixed process built around how Stockport Council validates and decides rear-extension applications — most drawings are submission-ready within seven days of survey.
Send us your Stockport postcode and house type. We confirm your conservation and Article 4 status, how much rear-extension depth you have under permitted development, and score your odds against live Stockport Council decisions.
We measure the original rear wall, floor and eaves levels, side and rear boundary distances and the neighbours' window positions — the numbers the depth limit and daylight splays depend on.
Chartered designers develop the single or two-storey rear extension to your brief, drawn inside the permitted-development limits or to Stockport Council's extension design guidance, with the daylight angles shown.
We submit the certificate, prior-approval notice or application, handle validation and case-officer queries, and revise the drawings free until Stockport Council issues its decision.
Often not. 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 involve Stockport Council for anything deeper via the larger-home route, for two-storey rear extensions, and for any rear extension in a conservation area such as Heaton Moor and Heaton Mersey Village, where those permitted-development rights fall away.
The larger-home extension scheme lets a single-storey rear extension reach 6 metres on a terrace or semi, or 8 metres on a detached house — double the standard allowance. It is not automatic: you submit a prior-approval notification to Stockport Council, neighbours are consulted, and if one objects on amenity grounds the council rules on it. It also does not apply on designated land such as Stockport's conservation areas.
It is the daylight test Stockport Council applies to protect neighbours. Drawn on plan, a line at 45 degrees from the midpoint of the neighbour's nearest ground-floor window should not be crossed by your extension; a companion 25-degree line is checked in section. If the projection breaches it, the extension is likely to be shortened or refused, so we test and prove it on the drawings before submission.
A two-storey rear extension almost always needs a full householder application to Stockport Council, as it sits outside permitted development on most homes. The council checks that it stays at least 7 metres from the rear boundary, does not overbear the neighbours and avoids new overlooking. We resolve the boundary gap, privacy and daylight on the plans so the application is decided on its merits.
Frequently, yes. If the rear extension involves work to a shared wall, building up to the boundary, or excavating foundations near a neighbour's structure, the Party Wall etc. Act applies and you must serve notice — this is separate from Stockport Council's planning decision. We flag it early and can prepare the drawings a party-wall surveyor needs alongside the planning set.
We price each Stockport rear extension on its own footprint and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Stockport Council approves, and we confirm at the outset whether your extension is permitted development, needs prior approval, or a full application. Call 020 7864 7245 to begin.
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