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Property guide · Hackney

Modern flat extensions in Hackney

Purpose-built or converted flats with restricted PD rights. Internal-only alterations dominate.

Quick facts

Property type
Modern flat
Borough
Hackney
Planning authority
Hackney Council
Article 4 in force
Yes
Conservation areas
29
Drawings from
£840

Modern flat stock in Hackney responds best to extensions that respect the existing rhythm. For Victorian and Edwardian period property, side returns and rear infill are routine. For 1930s suburban, single-storey rear and loft conversions dominate. We design to the block, not the brochure.

Victorian terraced street in London — architectural drawings in Hackney
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Which postcode districts around Hackney do we cover for modern flat project work?

Every Hackney postcode district we draw in, the stock that dominates it and the authority that validates a modern flat project there. Hackney fees below are the statutory England rates for 2026, not modern flat project estimates.

PostcodeAreaDominant stockWhat it means for a modern flat project
N16Stoke Newington / Stamford HillGeorgian and Victorian terracesStoke Newington / Stamford Hill is split at N16. Either Hackney Council or Islington Council can determine a modern flat project here, so the N16 address is checked against both policies maps first.
E5ClaptonVictorian terraces, mansion blocksE5 covers Clapton only; Hackney Council handles the modern flat project, and Clapton case officers apply the E5 conservation-area map.
E8Hackney Central / Dalston / London FieldsVictorian terraces, post-war flatsE8 covers Hackney Central / Dalston / London Fields only; Hackney Council handles the modern flat project, and Hackney Central / Dalston / London Fields case officers apply the E8 conservation-area map.
E9Homerton / Hackney WickVictorian terraces, post-war estatesA modern flat project at an E9 address in Homerton / Hackney Wick is determined by Hackney Council under its own Local Plan policies for Homerton / Hackney Wick.
EC2AShoreditchWarehouse conversions, modern infillA modern flat project in Shoreditch may land with Hackney Council or City of London Corporation — EC2A crosses the boundary, and the EC2A policies map decides it street by street.
N1Islington / HoxtonGeorgian and early Victorian terracesIslington / Hoxton is split at N1. Either Islington Council or Hackney Council can determine a modern flat project here, so the N1 address is checked against both policies maps first.
N4Finsbury Park / Stroud GreenVictorian terraces, post-war estatesN4 straddles a boundary: Finsbury Park / Stroud Green addresses fall to Haringey Council or Islington Council or Hackney Council, so confirm which authority validates the modern flat project before submitting N4 drawings.
E2Bethnal GreenWarehouse conversions, modern infillBethnal Green is split at E2. Either Tower Hamlets Council or Hackney Council can determine a modern flat project here, so the E2 address is checked against both policies maps first.

Which Hackney neighbourhoods suit a modern flat project best?

Roof pitch, wall build-up and plot depth change every few Hackney streets, and each one changes what a modern flat project can achieve at that address.

How do conservation areas and Article 4 affect a modern flat project in Hackney?

Hackney conservation designations: there are 29 across Hackney Council, De Beauvoir Town, Stoke Newington, Dalston Lane among them. Designation costs a Hackney owner the permitted-development route: a modern flat project then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Stoke Newington is the Hackney designation that most often changes a modern flat project design.

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 modern flat project 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.

The building fabric around Hackney: 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. A modern flat project in Hackney is scoped against that stock first. Our Hackney fixed fee starts at £840; the £1,750 Complete package runs the Hackney scheme through Hackney Council planning and building control in one go.

Who decides a modern flat project on the edge of Hackney?

Sources for this Hackney modern flat project 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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