What you could build at IG2 6UY: the planning rules at this address, what neighbours have built and how big, planning decisions nearby, rough costs and the value an extension adds, and how to get started. In Barkingside West, Redbridge.
101extensions seen within 600 m in the last 10 years
14loft conversions within 600 m in the last 10 years
92.5extensions per 1,000 homes in the neighbourhood (10 years)
● work seen on energy certificates · ● application approved · ● refused · ● pending or other · ● this postcode
The rules at this address
Houses usually have permitted development rights: some rear extensions (typically up to 3 m deep for a semi or terrace, 4 m detached), loft conversions within volume limits, and porches can go ahead without planning permission. Larger single-storey rear extensions (up to 6 m / 8 m) can use the “prior approval” neighbour scheme.
Not in a conservation area (from council registers).
No Article 4 direction recorded for this postcode.
Listed buildings need listed building consent for most changes, inside and out: check the National Heritage List.
To be certain work is permitted development, apply for a lawful development certificate (about £129 for householders in England). Building regulations apply either way.
Across England and Wales, homes extended by a typical 30 m² and then resold rose about 11.1% more than similar homes nearby over the same years (124,884 resales). How extensions pay off by size, type and region.
Single-storey rear or side extension: about £2,000–£3,000 per m² (London £2,500–£4,000), plus fees and VAT
Loft conversion: about £45,000–£75,000 for a dormer; more for a mansard or hip-to-gable
Two-storey extension: about £1,800–£2,800 per m² of new floor
Garage conversion: about £15,000–£30,000
Basement: about £3,500–£5,000 per m², London mostly
Build costs are rough 2026 ranges from industry guides, not quotes. Get three quotes for your plans.
Move or improve?
The money you don't get back either way, for the same extra space in Barkingside West.
Move to a home 20 m² bigger (about £730,000)
Stamp duty on the new home
£26,500
Estate agent on yours 1.2% + VAT
£9,072
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£40,672
Extend by 20 m²
Building, plus 15% for design, planning and contingency
£57,500
Less what it adds to your home's value 60% of the local price
−£60,000
Money gone
−£2,500
On these figures, extending loses about £43,172 less. Moving also changes the area, the schools and the commute; extending means months of building work and depends on planning.
Building costs vary a lot (a single-storey rear extension is often £2,000–£3,000 per m², more in London). How much space adds depends on the home and street: what extensions added to resale prices. A guide, not advice; nothing you type leaves this page.
Getting started
Look at what neighbours did. Open applications above to see drawings that were approved on similar houses, and who designed them.
Check the route: permitted development (with a lawful development certificate), prior approval for larger rear extensions, or full householder planning permission.
Get a measured survey and a designer: an architect, an architectural technologist or a designer who handles planning drawings.
Apply (householder permission is about £258 in England; councils aim to decide within 8 weeks).
Building regulations through the council's building control or an approved inspector, and party wall notices to neighbours if you build on or near the boundary.
Choose a builder: written quotes, a contract, staged payments, and check their insurance and references.
From energy certificates: an extension where a later certificate shows more floor space, a loft conversion where roof rooms appear. Certificates come with sales, lettings and some building work, so the year is when it was first seen.
Not every extension shows here. We only see building work when a new energy certificate is lodged, which happens when a home is sold, let or newly built. A loft or extension added since then won't appear, even with planning permission and building control sign-off, because those records aren't published as open data outside London. Missing work doesn't mean missing paperwork.
33, Inglehurst Gardens, Ig4 5hd
Rear extension
Not needed / lawful
Apr 2026
0829/26
50, Inglehurst Gardens, Ig4 5he
Outbuilding or garden room
Approved
Apr 2026
0772/26
7, Hedgeley, Ig4 5nw
Outbuilding or garden room
Refused
Nov 2025
2439/25
98, Inglehurst Gardens, Ig4 5ha
Rear extension
Approved
Oct 2025
2235/25
42, Ridgeway Gardens, Ig4 5hl
Rear extension
Not needed / lawful
Oct 2025
2501/25
140, Gantshill Crescent, Ig2 6ts
Other householder work
Approved
Sept 2025
2207/25
34, Castleview Gardens, Ig1 3qb
Other householder work
Not needed / lawful
Sept 2025
2345/25
10, Highcliffe Gardens, Ig4 5hr
Rear extension
Approved
Oct 2025
2277/25
6, Highcliffe Gardens, Ig4 5hr
Rear extension
Not needed / lawful
Aug 2025
2203/25
105, Woodford Avenue, Ig2 6uy
Other householder work
Approved
Sept 2025
2200/25
94, Glenwood Gardens, Ig2 6xx
Rear extension
Not needed / lawful
Aug 2025
2197/25
45, Ethelbert Gardens, Ig2 6un
Two-storey extension
Approved
Sept 2025
1990/25
28, Avery Gardens, Ig2 6uj
Other householder work
Refused
Oct 2025
1920/25
35, Ambleside Gardens, Ig4 5hh
Two-storey extension
Approved
Aug 2025
2027/25
52, Glenwood Gardens, Ig2 6xu
Loft or dormer
Approved
Aug 2025
1924/25
30, Keswick Gardens, Ig4 5nb
Rear extension
Approved
Aug 2025
2005/25
8, Castleview Gardens, Ig1 3qb
Other householder work
Approved
Aug 2025
1980/25
5, Somersby Gardens, Ig4 5dy
Rear extension
Not needed / lawful
Jul 2025
1756/25
36, Inglehurst Gardens, Ig4 5hd
Rear extension
Approved
Jul 2025
1729/25
35, Ambleside Gardens, Ig4 5hh
Two-storey extension
Refused
Jul 2025
1231/25
1, Collinwood Gardens, Ig5 0aw
Rear extension
Withdrawn
Jun 2025
1163/25
44, Windermere Gardens, Ig4 5bz
Other householder work
Approved
Jul 2025
1551/25
17, Brantwood Gardens, Ig4 5lg
Rear extension
Not needed / lawful
Jun 2025
1550/25
74, Redbridge Lane East, Ig4 5ez
Rear extension
Approved
Jul 2025
1291/25
23, Grasmere Gardens, Ig4 5lf
Rear extension
Not needed / lawful
Jun 2025
1274/25
36, Wycombe Road, Ig2 6ut
Loft or dormer
Not needed / lawful
Jun 2025
1230/25
104, Highwood Gardens, Ig5 0ab
Rear extension
Approved
Jul 2025
1340/25
33, Keswick Gardens, Ig4 5nf
Two-storey extension
Approved
Jun 2025
1280/25
74, Redbridge Lane East, Ig4 5ez
Other householder work
Approved
Jul 2025
1298/25
33, Keswick Gardens, Ig4 5nf
Rear extension
Not needed / lawful
Jun 2025
1181/25
34, Ellesmere Gardens, Ig4 5da
Rear extension
Approved
Jul 2025
1288/25
17, Brantwood Gardens, Ig4 5lg
Rear extension
Refused
May 2025
1083/25
Householder applications validated since 2023 within 600 m. The council's page has the drawings, the decision notice and who the agent or architect was. Hover a row for the description. Source: GLA Planning London Datahub.
–
75% (8)
88%
7 weeks
Basement
–
80% (5)
83%
10 weeks
Porch or front extension
–
79% (14)
81%
7 weeks
Share of decided applications approved since 2023 (number decided in brackets). Withdrawn applications aren't counted; many are withdrawn when refusal looks likely.