Single-storey, double-storey, rear and side extension drawings for Barking and Dagenham homes — measured to Barking and Dagenham Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Barking and Dagenham Council granted 84% of the householder planning decisions it made in its latest published year — 3 points below the 87% England-wide householder average. The Becontree Estate's uniform garden-suburb layout means front alterations and roof changes are assessed against the whole street's consistency, 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.
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 Barking and Dagenham Council needs a full application. Barking and Dagenham carries at least one Article 4 direction, and conservation areas including Barking Town Centre (Abbey), Becontree Estate and Chadwell Heath remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Barking and Dagenham is determined against an 8-week statutory target.
Barking (older terraces and flats around the Abbey and town-centre conservation area), Dagenham (the planned interwar Becontree cottage estate of semis and short terraces), Chadwell Heath (interwar suburban housing with a small conservation area), Becontree (uniform 1920s-30s garden-suburb streets on the huge municipal estate), Rush Green (interwar semis on the borough's eastern edge) and Marks Gate (postwar estate housing to the north) — these are the Barking and Dagenham pockets our drawings cover most. Heritage designations here include Barking Town Centre (Abbey), Becontree Estate, Chadwell Heath, Eastbury and Barking Abbey. Barking and Dagenham Council weighs each proposal against Barking and Dagenham Local Plan 2037 and the borough's residential design guidance, where generous original plots make rear and side extensions viable but officers guard the estate's spacing and building lines. On roofs the borough is hipped roofs on the cottage-estate semis and gabled roofs on the older terraces, over interwar Becontree cottage-estate semis and short terraces, Victorian and Edwardian terraces around Barking and postwar and modern infill.
Barking and Dagenham homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from interwar Becontree cottage-estate semis and short terraces, Victorian and Edwardian terraces around Barking and postwar and modern infill, 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. Barking and Dagenham Council judges every one of them against Barking and Dagenham Local Plan 2037 and the borough's residential design guidance, 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. The Becontree Estate's uniform garden-suburb layout means front alterations and roof changes are assessed against the whole street's consistency, so we design around it from the first sketch rather than discover it at validation.
Barking and Dagenham also protects whole streets — Barking Town Centre (Abbey), Becontree Estate, Chadwell Heath, Eastbury and Barking Abbey among them. The vast Becontree cottage estate is a heritage asset in its own right, and Article 4 controls apply in parts of the borough to protect the estate's consistent frontages and the historic core around Barking Abbey. 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 Barking and Dagenham 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 Barking and Dagenham Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Barking and Dagenham 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 Barking and Dagenham Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Barking and Dagenham grants a fair majority of householder applications, with the design consistency of the Becontree cottage estate the defining constraint across much of the borough. 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, 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 Barking, Dagenham and Chadwell Heath, 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 interwar becontree cottage-estate semis and short terraces, a side-return infill frequently pairs with it to square off the plan; on wider postwar and modern infill, a two-storey side or rear extension can add a bedroom above without swallowing the garden.
Generous original plots make rear and side extensions viable but officers guard the estate's spacing and building lines. 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 Barking and Dagenham 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 Barking and Dagenham projects come up most often:
Extension drawings for Barking's older terraces and flats around the Abbey and town-centre conservation area — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
Extension drawings for Dagenham's the planned interwar Becontree cottage estate of semis and short terraces — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
Extension drawings for Chadwell Heath's interwar suburban housing with a small conservation area — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
Extension drawings for Becontree's uniform 1920s-30s garden-suburb streets on the huge municipal estate — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
Extension drawings for Rush Green's interwar semis on the borough's eastern edge — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
Extension drawings for Marks Gate's postwar estate housing to the north — footprint-checked, daylight-tested and drawn to Barking and Dagenham Council's guidance.
The right extension in Barking and Dagenham 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 Barking and Dagenham 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 Barking Town Centre (Abbey) and Becontree Estate and Article 4 directions can remove permitted-development rights.
A fixed process built around how Barking and Dagenham Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Barking and Dagenham 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 Barking and Dagenham 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 Barking and Dagenham 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 Barking and Dagenham 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 Barking and Dagenham you will need to apply to Barking and Dagenham 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 Barking Town Centre (Abbey) and Becontree Estate.
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 Barking and Dagenham Council and a neighbour-consultation period, and it does not apply on designated land such as Barking and Dagenham'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 Barking and Dagenham 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 Barking and Dagenham 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. Barking and Dagenham 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 Barking and Dagenham Council's building control or an approved inspector can sign the work off.
Every house and brief is different, so we price each Barking and Dagenham extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Barking and Dagenham 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.