Back-of-house extension drawings for Redbridge homes — the glazed kitchen-diner across the rear, drawn to Redbridge Council's depth and daylight limits, delivered in days and revised free until your decision, with a free approval-odds check first.
Redbridge Council granted 84% of the householder planning decisions it made in its latest published year — 3 points below the 87% England-wide householder average. Hip-to-gable and rear dormer schemes on paired semis are judged on roof bulk and the symmetry of the pair, which is where a policy-literate drawing pack earns its keep. Its dominant Edwardian (1901–1910), interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Redbridge Council needs a full application. Redbridge carries at least one Article 4 direction, and conservation areas including Wanstead Village (George Green), Woodford Green and Cranbrook (Ilford) remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Redbridge is determined against an 8-week statutory target.
Wanstead (Edwardian and interwar homes around the George Green conservation area), Woodford Green (larger detached and semi-detached houses beside Epping Forest), Ilford (Edwardian terraces around the Cranbrook and Valentines conservation areas), Snaresbrook (period villas near the forest edge), Gants Hill (1930s Metroland semis on generous plots) and Barkingside (interwar and postwar suburban housing) — these are the Redbridge pockets our drawings cover most. Heritage designations here include Wanstead Village (George Green), Woodford Green, Cranbrook (Ilford), Valentines and Snaresbrook. Redbridge Council weighs each proposal against Redbridge Local Plan 2015–2030 and the borough's householder alterations and extensions guidance, where the borough's suburban character means front boundary treatments and street rhythm carry real weight. Converted flats are common through Ilford and around Gants Hill, and those units carry no householder permitted-development rights.. On roofs the borough is hipped roofs on the interwar semis and gabled roofs on the Edwardian and detached stock, over interwar semi-detached houses, Edwardian terraces around Ilford and detached houses in Woodford and Wanstead.
The rear extension is the workhorse of Redbridge home improvement — it is how a dark back kitchen becomes an open family room facing the garden. Because the borough is built largely from interwar semi-detached houses, Edwardian terraces around Ilford and detached houses in Woodford and Wanstead, most back walls sit close to a neighbour on at least one side, and that proximity, not the design, is what Redbridge Council scrutinises. The council reads the proposal against Redbridge Local Plan 2015–2030 and the borough's householder alterations and extensions guidance, 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. Hip-to-gable and rear dormer schemes on paired semis are judged on roof bulk and the symmetry of the pair, so the rear elevation is composed around it rather than corrected after an objection.
Where the property sits in a conservation area — Wanstead Village (George Green), Woodford Green, Cranbrook (Ilford), Valentines and Snaresbrook among Redbridge's — the larger-home extension route is switched off and even a modest rear addition needs consent. Leafier conservation areas such as Wanstead and Woodford Green carry Article 4 controls, and with Epping Forest wrapping the borough's western edge those green settings weigh on what alterations are acceptable. We confirm the designation before the survey.
Many single-storey rear extensions in Redbridge are permitted development and need no application. You will normally need to apply to Redbridge 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 Redbridge 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 Redbridge Council's real householder decision record, taken from official planning statistics and refreshed as new data lands. Redbridge grants a fair majority of householder applications, though the symmetry of its paired interwar semis is the recurring issue that decides many roof and side schemes. 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, rolling year). 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 Wanstead, Woodford Green and Ilford, 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 interwar semi-detached houses, 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 suburban character means front boundary treatments and street rhythm carry real weight. We keep the extension inside the daylight splays, set any glazed roof below the first-floor cill, and retain the garden depth Redbridge 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 Redbridge back-of-house projects come up most often:
Rear extension drawings for Wanstead's Edwardian and interwar homes around the George Green conservation area — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
Rear extension drawings for Woodford Green's larger detached and semi-detached houses beside Epping Forest — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
Rear extension drawings for Ilford's Edwardian terraces around the Cranbrook and Valentines conservation areas — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
Rear extension drawings for Snaresbrook's period villas near the forest edge — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
Rear extension drawings for Gants Hill's 1930s Metroland semis on generous plots — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
Rear extension drawings for Barkingside's interwar and postwar suburban housing — depth-checked, daylight-tested and drawn to Redbridge Council's guidance.
How far you can extend at the back in Redbridge depends on your house type and the route you take. This is how the options compare.
| Route | Depth allowed | Consent needed | What Redbridge 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 Wanstead Village (George Green) and Woodford Green and Article 4 streets need a full application.
A fixed process built around how Redbridge Council validates and decides rear-extension applications — most drawings are submission-ready within seven days of survey.
Send us your Redbridge 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 Redbridge 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 Redbridge 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 Redbridge 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 Redbridge. You will need to involve Redbridge 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 Wanstead Village (George Green) and Woodford Green, 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 Redbridge 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 Redbridge's conservation areas.
It is the daylight test Redbridge 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 Redbridge 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 Redbridge 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 Redbridge 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 Redbridge 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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