Single-storey rear extensions, lofts and side extensions you can build in Hackney without full planning — and the exceptions.
More likely than almost anywhere. Hackney granted 39 larger home extension notifications and refused 13, a 75.0% grant rate second only to Croydon and far above the 34.6% London figure. It told 41 households no prior approval was needed and issued 766 certificates.
| Larger home extension route | Hackney | London |
|---|---|---|
| Prior approval not required | 41 | 9,067 |
| Granted | 39 | 1,930 |
| Refused | 13 | 3,646 |
| Grant rate | 75.0% | 34.6% |
| Lawful development certificates | 766 | 36,657 |
| Householder appeals allowed after refusal | 46.2% of 279 | 40.8% of 13,067 |
Sources: MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026. Appeals from Planning Inspectorate casework decided 2016–2026. A zero in the statutory return means the measure was not recorded for that borough, never that no such decisions exist. Open Government Licence v3.0.
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. Permitted Development rights apply only to houses (Class C3 dwellings). Flats and maisonettes require full planning for almost every external alteration.
Yes — significantly reduced. In a conservation area: side extensions and two-storey rear extensions are not PD; cladding is not PD; chimney removal needs planning; roof additions are restricted.
An LDC is a formal confirmation from the council that your proposal is lawful PD — recommended before building, useful when selling. Costs around £103 for council fees + drawings.
Yes. Building regulations are entirely separate from planning. Permitted Development removes the planning requirement only — you still need building control sign-off for structure, insulation, fire safety, drainage, and ventilation. We deliver both planning and building regs drawings.



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Every Hackney postcode district we draw in, the stock that dominates it and the authority that validates a permitted development scheme there. Hackney fees below are the statutory England rates for 2026, not permitted development scheme estimates.
| Postcode | Area | Dominant stock | What it means for a permitted development scheme |
|---|---|---|---|
| N16 | Stoke Newington / Stamford Hill | Georgian and Victorian terraces | N16 straddles a boundary: Stoke Newington / Stamford Hill addresses fall to Hackney Council or Islington Council, so confirm which authority validates the permitted development scheme before submitting N16 drawings. |
| E5 | Clapton | Victorian terraces, mansion blocks | Clapton sits wholly inside E5, so Hackney Council validates every permitted development scheme submitted from an E5 address. |
| E8 | Hackney Central / Dalston / London Fields | Victorian terraces, post-war flats | A permitted development scheme at an E8 address in Hackney Central / Dalston / London Fields is determined by Hackney Council under its own Local Plan policies for Hackney Central / Dalston / London Fields. |
| E9 | Homerton / Hackney Wick | Victorian terraces, post-war estates | A permitted development scheme at an E9 address in Homerton / Hackney Wick is determined by Hackney Council under its own Local Plan policies for Homerton / Hackney Wick. |
| EC2A | Shoreditch | Warehouse conversions, modern infill | Shoreditch is split at EC2A. Either Hackney Council or City of London Corporation can determine a permitted development scheme here, so the EC2A address is checked against both policies maps first. |
| N1 | Islington / Hoxton | Georgian and early Victorian terraces | N1 straddles a boundary: Islington / Hoxton addresses fall to Islington Council or Hackney Council, so confirm which authority validates the permitted development scheme before submitting N1 drawings. |
| N4 | Finsbury Park / Stroud Green | Victorian terraces, post-war estates | A permitted development scheme in Finsbury Park / Stroud Green may land with Haringey Council or Islington Council or Hackney Council — N4 crosses the boundary, and the N4 policies map decides it street by street. |
| E2 | Bethnal Green | Warehouse conversions, modern infill | A permitted development scheme in Bethnal Green may land with Tower Hamlets Council or Hackney Council — E2 crosses the boundary, and the E2 policies map decides it street by street. |
Roof pitch, wall build-up and plot depth change every few Hackney streets, and each one changes what a permitted development scheme can achieve at that address.
Conservation areas covering Hackney: Hackney Council runs 29, and Hackney Central, Clapton, De Beauvoir Town are the ones Hackney owners meet most. A permitted development scheme inside a Hackney conservation area loses permitted development, so the Hackney submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Stoke Newington a permitted development scheme is judged on the street elevation first.
What Article 4 removes near Hackney: Article 4 Direction covers HMO conversions borough-wide and office-to-residential in specific commercial zones. Before pricing a permitted development scheme we check whether the N16 address is inside the mapped area, because Hackney Council draws the Hackney boundary street by street rather than across the whole of Hackney.
Hackney housing stock: Victorian terraces dominate; large post-war estates around Hackney Wick; Georgian fragments in De Beauvoir and Stoke Newington; new-build around the Olympic Park. Young demographic; high design-quality bar in planning; mansards routinely approved in rear-of-terrace positions within conservation areas following the Hackney design guide. Read that before choosing a permitted development scheme route in Hackney — construction, not postcode, sets what is achievable.
Sources for this Hackney 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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