Planning Permission in Redbridge: Extensions and Loft Conversions in 2026

This guide is for homeowners in the London Borough of Redbridge: South Woodford, Woodford Green, Woodford Bridge, Wanstead, Snaresbrook, Ilford, Gants Hill and Barkingside. We are a building company based at 15B Raven Road in South Woodford, and these are the figures and rules we check before pricing an extension or loft conversion in the borough. Every number below comes from public data, and the sources are listed at the end. Always confirm the position for your own address with Redbridge Council.

Redbridge Planning Approval Rates in 2026

Redbridge decided 991 householder applications in the year to June 2026 and granted 82.8% of them (MHCLG). Our own analysis of the Planning London Datahub records for September 2025 to August 2026 gives 83.4% across 790 decisions, with a median of 47 days from validation to decision. Across London the equivalent figures are 85.8% and 56 days, so Redbridge is slightly stricter but faster than the London average.

Extension type (Redbridge, Sep 2025 to Aug 2026)	Decisions	Approved	Median time
Single-storey rear	456	88.4%	6.4 weeks
Side and side-return infill	258	86.4%	6.4 weeks
Wraparound	110	89.1%	7.1 weeks
Two-storey	94	83.0%	6.4 weeks
All extensions	566	88.0%	6.3 weeks
Loft conversions (planning applications)	164	79.3%	7.7 weeks
Loft conversions (lawful development certificates)	328	88.4%	14 days

Two-storey extensions are the type most often refused, which matches the rest of London (78.0% approved London-wide). Loft conversions that needed a full application were approved 79.3% of the time, against 82.0% across London.

One caveat: the Planning London Datahub feed for Redbridge was missing records for June 2026, so the Redbridge counts above are slightly understated. The rates and median times use the months that are complete, and the official MHCLG figure is given alongside.

How Redbridge Compares With Neighbouring Boroughs

Borough	Householder applications granted (year to June 2026)	Decisions	Median decision time
Redbridge	82.8%	991	6.7 weeks
Waltham Forest	81.5%	771	7.9 weeks
Havering	85.9%	985	8.0 weeks
Newham	86.9%	388	7.9 weeks
Barking and Dagenham	66.5%	388	7.4 weeks
London	85.8%		8.0 weeks

The full borough-by-borough comparison is in our 2026 London planning approvals study, and decision times for every borough are in how long planning permission takes in London.

Which Route Does Your Project Need?

• Permitted development, no application: a single-storey rear extension up to 3 metres deep on a terraced or semi-detached house (4 metres detached), and many rear dormer loft conversions, where the house still has its permitted development rights.
• Lawful development certificate: not compulsory, but it proves the work is permitted development, which buyers' solicitors and building control often ask for. In Redbridge about 67% of loft conversions took this route, and certificates were decided in a median of 14 days.
• Prior approval for a larger home extension: a single-storey rear extension up to 6 metres deep (8 metres detached). The council notifies the neighbours, who have at least 21 days to comment, and work can start if no decision is issued within 42 days. Redbridge decided 499 of these in the year to June 2026, with 79.8% either granted or confirmed as not needing approval.
• Householder planning application: side and wraparound extensions, two-storey extensions, front changes, and any work in an area where permitted development rights have been removed. The statutory target is 8 weeks from validation.

Our general guide to permitted development in London covers the national limits in more detail.

Conservation Areas in Redbridge

Redbridge Council says it has 16 conservation areas and names these on its website:

• Woodford: South Woodford, George Lane, Snaresbrook, Woodford Broadway, Woodford Bridge, and Woodford Green and Woodford Wells.
• Wanstead: Wanstead Village, Wanstead Grove, Wanstead Park, and Aldersbrook and Lake House Estate.
• Ilford, Barkingside and elsewhere in the borough: Valentines Mansion, Barnardo's Village Homes, Claybury, Little Heath, and The Bungalow Estate (formerly Mayfield).

In a conservation area a single-storey rear extension can still be permitted development within the standard limits, unless an Article 4 direction says otherwise, but side extensions, two-storey extensions, cladding and the larger home extension route all need a planning application, and the council expects designs that preserve or enhance the character of the area.

Article 4 Directions in Redbridge

An Article 4 direction removes some permitted development rights, so work that would normally need no application needs planning permission. The directions Redbridge lists that affect houses are:

• Aldersbrook and Lake House Estate (2020): changes to the front, side or rear elevations including windows, porches, hardstandings, new vehicle access, painting the exterior, demolishing boundary walls, solar panels, and roof alterations including rooflights and roof coverings.
• 1 to 47 Spratt Hall Road, Wanstead Village (2013): changes facing the road, including windows and doors, roof slopes, porches, hardstandings, chimneys, gates, fences and walls, and painting brickwork.
• 2 to 48 The Drive, Snaresbrook (2001): front chimneys, windows, front doors and architectural features.
• The Bungalow Estate (2017): a confirmed direction is published by the council; check its terms with Redbridge before planning any work there.

The council does not list an Article 4 direction for the Woodford conservation areas, but the ordinary conservation area controls still apply there.

Redbridge's Design Rules for Extensions and Dormers

Applications are assessed against the Redbridge Local Plan 2015-2030 (adopted March 2018) and the Housing Design Guide SPD (September 2019), which replaced the 2012 Householder Design Guide. The guide's main numbers for houses are:

• Single-storey rear extensions: up to 3.5 metres deep on terraced and semi-detached houses and 4.5 metres on detached houses; a flat roof about 3 metres high with a parapet of up to 150mm, or a pitched roof with eaves up to 3 metres and an overall height up to 4 metres.
• First-floor rear extensions: up to 3 metres deep, no wider than half the rear of the house, and within the 45-degree line from the neighbours' nearest windows.
• Side extensions: no wider than half the width of the house, with the first floor set back at least 0.5 metres and the ridge set down at least 0.5 metres; 1 metre from the boundary on open or corner plots.
• Dormers: at least 0.5 metres below the ridge and 1 metre above the eaves, set in 1 metre from the party wall and roof edge (0.5 metres on hipped roofs). Front and side dormers are generally not appropriate, and hip-to-gable conversions are generally refused where they are out of character with the street.

These are the council's guidelines for planning applications. Permitted development has its own national limits, which is why a rear dormer or a 3 metre extension can often go ahead without an application even where the design guide would treat it differently.

Fees and Charges in 2026

• Householder planning application: £548 (national fee from 1 April 2026).
• Lawful development certificate, proposed householder works: £274.
• Prior approval for a larger home extension: £249.
• Redbridge pre-application advice for householders: £170 for a standard 20-minute call with no written advice, or £310 for written advice, intended for conservation areas, listed buildings and more complex cases.
• Community Infrastructure Levy: extensions under 100 m² are generally not liable. Larger extensions can be liable for Redbridge CIL (£125.56 per m² in 2026) and the Mayor's CIL (£72.73 per m²) unless the householder exemption is claimed before work starts.

Drawings, structural calculations, a party wall surveyor where the work is near a shared wall, and building control fees come on top. Our house extension cost guide and party wall cost guide give current London figures.

Green Belt and Epping Forest

About 30% of Redbridge is Metropolitan Green Belt, including the Roding Valley between Woodford and Wanstead on one side and Woodford Bridge and Ilford on the other. The Local Plan also asks for early discussion and a habitats screening for development within 2 km of the Epping Forest Special Area of Conservation. Most ordinary house extensions in Woodford are not affected, but homes backing onto the forest or the Roding Valley should check before designing.

Building in Redbridge With Alstruct

Our office is in South Woodford, and Redbridge is where much of our residential work starts. We price and build house extensions, loft conversions, renovations and joinery on fixed written quotes under JCT contracts, with a 10-year workmanship warranty. See our local pages for South Woodford, Woodford Green, Wanstead and Ilford.

Frequently Asked Questions

Sources

• Redbridge Council: protected buildings and conservation areas, including the Article 4 directions
• Redbridge Council: Housing Design Guide SPD (September 2019)
• Redbridge Council: Local Plan 2015-2030
• Redbridge Council: householder pre-application advice
• Redbridge Council: Community Infrastructure Levy
• Planning Portal: fees for planning applications in England (v2026.1, 1 April 2026)
• legislation.gov.uk: GPDO 2015, Schedule 2, Part 1, Class A (house extensions)
• GOV.UK: Community Infrastructure Levy guidance
• MHCLG: live tables on planning application statistics (to June 2026)
• Greater London Authority: Planning London Datahub

Approval rates and decision times: Alstruct analysis of Planning London Datahub householder, lawful development and prior approval records decided between 1 September 2025 and 31 August 2026, cross-checked against MHCLG statistics; method in our London planning approvals study. Policy, fees and charges checked on 2 November 2026.