What you could build at EN1 2DL: 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 Enfield Town South & Bush Hill Park, Enfield.
81extensions seen within 600 m in the last 10 years
7loft conversions within 600 m in the last 10 years
62.3extensions 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
Mostly flats at this postcode. Flats have no permitted development rights, so almost any extension or loft conversion needs planning permission, and the freeholder's consent under the lease.
Not in a conservation area (from council registers).
Article 4 direction (Borough wide): some rights normally allowed have been removed here. Check what it covers with the council before relying on permitted development.
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 Enfield Town South & Bush Hill Park.
Move to a home 20 m² bigger (about £554,000)
Stamp duty on the new home
£17,700
Estate agent on yours 1.2% + VAT
£6,408
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£29,208
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
−£65,400
Money gone
−£7,900
On these figures, extending loses about £37,108 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.
106, Lincoln Road, En1 1jx
Side return or wrap-around
Not needed / lawful
Aug 2026
26/03061/PRH
79, Burleigh Road, En1 1nu
Rear extension
Refused
Aug 2026
26/02723/PRH
89, Lincoln Crescent, En1 1jz
Side return or wrap-around
Approved
Jul 2026
26/02568/HOU
12, Private Road, En1 2eh
Loft or dormer
Approved
Jul 2026
26/02117/HOU
3, Cross Road, En1 1pd
Side return or wrap-around
Refused
Jul 2026
26/02234/PRH
2, Longleat Road, En1 2qj
Windows, doors or cladding
Approved
Jul 2026
26/01970/HOU
6, Athole Gardens, En1 2ew
Rear extension
Approved
Jul 2026
26/01916/HOU
74, Uvedale Road, En2 6hd
Two-storey extension
Refused
Aug 2026
26/01509/HOU
27, Wellington Road, En1 2pe
Windows, doors or cladding
Approved
Jun 2026
26/01457/HOU
6, Kingswood Close, En1 1jp
Two-storey extension
Approved
May 2026
26/01252/HOU
27, Essex Road, En2 6tz
Two-storey extension
Approved
Jun 2026
26/00672/HOU
42, Halstead Road, En1 1qb
Rear extension
Not needed / lawful
Apr 2026
26/01005/PRH
13, East Crescent, En1 1bs
Rear extension
Approved
May 2026
26/00857/HOU
26, Abbey Road, En1 2ql
Other householder work
Approved
Jan 2026
25/03920/HOU
31, Chalkwell Park Avenue, En1 2al
Rear extension
Not needed / lawful
Dec 2025
25/03986/PRH
56c, Wellington Road, En1 2ph
Rear extension
Refused
Dec 2025
25/03664/PRH
9, Private Road, En1 2el
Two-storey extension
Refused
Nov 2025
25/02922/HOU
27, Essex Road, En2 6tz
Rear extension
Refused
Oct 2025
25/02834/HOU
3, Abbey Road, En1 2qp
Loft or dormer
Refused
Oct 2025
25/02885/HOU
2b, Raleigh Road, En2 6ub
Windows, doors or cladding
Approved
Oct 2025
25/02237/HOU
99, Park Avenue, En1 2bb
Rear extension
Not needed / lawful
Sept 2025
25/02643/PRH
88, Lincoln Road, En1 1ju
Side return or wrap-around
Approved
Sept 2025
25/02274/HOU
5, Castleleigh Court, En2 6jd
Other householder work
Approved
Aug 2025
25/01430/HOU
3, Abbey Road, En1 2qp
Rear extension
Refused
Aug 2025
25/01604/HOU
2, Riverdale Court, Bush Hill, N21 2by
Rear extension
Approved
Jun 2025
25/01434/HOU
27, Essex Road, En2 6tz
Two-storey extension
Refused
Jul 2025
25/01311/HOU
7, Longleat Road, En1 2qj
Two-storey extension
Approved
Jun 2025
25/00941/HOU
37, Village Road, En1 2et
Loft or dormer
Refused
Jun 2025
25/00971/HOU
25, Essex Road, En2 6tz
Two-storey extension
Approved
May 2025
25/01090/HOU
18, Abbey Road, En1 2ql
Windows, doors or cladding
Approved
May 2025
25/01019/HOU
37, Essex Road, En2 6ua
Rear extension
Approved
Jun 2025
25/00979/HOU
77, Park Avenue, En1 2ba
Rear extension
Not needed / lawful
Apr 2025
25/00842/PRH
75, Park Avenue, En1 2ba
Rear extension
Not needed / lawful
Mar 2025
25/00382/PRH
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.
–
85% (116)
88%
7 weeks
Basement
–
53% (17)
83%
8 weeks
Porch or front extension
–
88% (74)
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.