What you can build in Barking and Dagenham without a planning application: single-storey rear extensions, lofts, side extensions, and the point at which each one stops. The borough is notably accommodating on the deeper extension. Across the twelve quarters to March 2026 it determined 885 larger householder prior approvals, found prior approval was not required in 743 of them, and refused just 112 — a refusal share of 12.7% against 24.9% for London as a whole. Source: MHCLG live planning statistics.
A large share. The borough issued 1,051 lawful development certificates against 1,239 householder decisions — close to parity — and with four conservation areas covering just 22 hectares, Article 2(3) reaches almost nothing here. It also decided every householder application inside eight weeks.
| Measure | Barking and Dagenham | London |
|---|---|---|
| Lawful development certificates issued | 1,051 | — |
| Householder decisions made | 1,239 | 77,680 |
| Conservation areas | 4 covering 22 ha | smallest footprint in London |
| Article 4 areas in the register | 3, below the publication floor | — |
| Householder approval rate | 69.7% | 83.0% |
| Decided inside eight weeks | 100.0% | only borough at that figure |
| Certificate application fee | £274 | £548 for a householder application |
Sources: decision figures from MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026; registers from the MHCLG Planning Data Platform, retrieved 1 September 2026 — the Article 4 count sits below the five-entry publication floor, so no coverage figure is quoted from it; fees from the Fees for Applications Regulations 2012 as amended.
In detailSingle-storey rear extension up to 3m deep (attached house) or 4m (detached); side extension up to half the original width; loft conversion up to 40m³ (terraced) or 50m³ (semi-detached); single-storey outbuilding within the curtilage; replacement windows and doors. All subject to material match, eaves setback (20cm), and not facing a highway.
No. Rights under permitted development attach to houses in Class C3 use. A flat or a maisonette has none of them, so almost any external alteration to one means a full planning application, however minor it looks from the pavement.
Yes, and materially so. A designation takes the side extension off the table, and the two-storey rear extension with it. Cladding stops being permitted. Taking a chimney down needs consent. Roof alterations narrow to almost nothing. None of it is a local invention: the rules that apply in a conservation area are national, and only the boundary is drawn here, which is why finding out where that boundary runs comes first.
A lawful development certificate is the council confirming, formally, that what you propose really is permitted development. Get one before the builders arrive and it becomes the document your buyer's solicitor wants years afterwards. The fee for a lawful development certificate is £274, with the supporting drawings on top.
Yes. The two regimes are separate and always have been. Permitted development removes the need for planning consent and does nothing whatever about building control, which still wants structure, insulation, fire safety, drainage and ventilation demonstrated to it. We produce both: the planning set, and the building regs drawings that sit behind it.



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Postcode by postcode across Barking and Dagenham: what the stock is mostly made of in each district, and who validates work coming from it. The fees quoted lower down are set by statute in England for 2026; we are reporting them, not quoting our own.
| Postcode | Area | Dominant stock | What it means for a permitted development scheme |
|---|---|---|---|
| RM6 | Chadwell Heath | 1930s semi-detached | RM6 is Chadwell Heath, cut between Barking and Dagenham and Redbridge. Which council validates turns on the address itself, so settle that before any drawings are prepared. |
| RM8 | Becontree / Dagenham | 1920s-30s estate housing (Becontree) | A permitted development scheme at an RM8 address in Becontree / Dagenham is determined by Barking and Dagenham Council under its own Local Plan policies for Becontree / Dagenham. |
| RM10 | Dagenham | 1920s-30s estate housing (Becontree) | A permitted development scheme at an RM10 address in Dagenham is determined by Barking and Dagenham Council under its own Local Plan policies for Dagenham. |
| IG11 | Barking | Victorian terraces, post-war flats, new-build | A permitted development scheme at an IG11 address in Barking is determined by Barking and Dagenham Council under its own Local Plan policies for Barking. |
Plot depth and roof geometry still vary street to street, even in a borough built as consistently as this one. On the VOA figures for 31 March 2025, 35.0% of the 81,790 homes here date from the decade after the First World War, and what a scheme reaches at one address is not what it reaches next door.
Conservation areas covering Barking and Dagenham: Barking and Dagenham Council runs 9, and Becontree Estate (historic), Eastbury, Valence House are the ones Barking and Dagenham owners meet most. A permitted development scheme inside a Barking and Dagenham conservation area loses permitted development, so the Barking and Dagenham submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Valence House a permitted development scheme is judged on the street elevation first.
Article 4 and your Barking and Dagenham permitted development scheme: Barking and Dagenham Council has made no borough-wide direction, so permitted development for a permitted development scheme in Barking and Dagenham generally survives outside Barking and Dagenham conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a RM6 owner records that a permitted development scheme was lawful.
What Barking and Dagenham is built from: Becontree Estate (the world's largest council estate when built, 1920s-30s) dominates; post-war estates around Barking town; new-build riverside. Major regeneration in Barking Riverside; mostly permissive planning outside conservation pockets. That mix decides the permitted development scheme route in Barking and Dagenham more than the postcode does.
Sources for this Barking and Dagenham permitted development scheme page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.

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