What you could build at EN2 8PB: 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 Chase Farm & The Ridgeway, Enfield.
61extensions seen within 600 m in the last 10 years
5loft conversions within 600 m in the last 10 years
53.4extensions 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 Chase Farm & The Ridgeway.
Move to a home 20 m² bigger (about £555,000)
Stamp duty on the new home
£17,750
Estate agent on yours 1.2% + VAT
£6,408
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£29,258
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
−£66,000
Money gone
−£8,500
On these figures, extending loses about £37,758 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.
9, Chase Hill, En2 8df
Rear extension
Approved
Jun 2026
26/00580/HOU
59, Windmill Hill, En2 7af
Other householder work
Refused
Jun 2026
26/01281/PMA
24, Perry Mead, En2 8bp
Rear extension
Not needed / lawful
Apr 2026
26/01010/PRH
26, Old Park View, En2 7ej
Rear extension
Not needed / lawful
Apr 2026
26/00905/PRH
1, West Bank, En2 8du
Rear extension
Not needed / lawful
Apr 2026
26/00906/PRH
17, John Gooch Drive, En2 8hf
Rear extension
Approved
Mar 2026
26/00688/HOU
2, Valley Fields Crescent, En2 7qa
Other householder work
Approved
Jul 2026
26/00001/HOU
53, Slades Hill, En2 7dn
Loft or dormer
Approved
Mar 2026
26/00507/HOU
4, Slades Gardens, En2 7dr
Rear extension
Not needed / lawful
Mar 2026
26/00335/PRH
8, Rowantree Road, En2 8qa
Rear extension
Approved
Feb 2026
25/04030/HOU
Cavell Hospital, Cavell Drive, En2 7pr
Other householder work
Not needed / lawful
Jan 2026
25/04311/PADE
53, Slades Hill, En2 7dn
Loft or dormer
Refused
Jan 2026
25/04006/HOU
53, Chase Court Gardens, En2 8dj
Rear extension
Approved
Jan 2026
25/04056/HOU
9, Chase Court Gardens, En2 8dh
Loft or dormer
Refused
Dec 2025
25/03795/HOU
11, Culloden Road, En2 8qe
Loft or dormer
Approved
Jan 2026
25/03702/HOU
6, Chase Court Gardens, En2 8dh
Loft or dormer
Refused
Nov 2025
25/03587/HOU
3, Robson Close, En2 8pz
Porch or front extension
Approved
Oct 2025
25/02483/HOU
61, Slades Hill, En2 7dx
Rear extension
Approved
Oct 2025
25/02833/HOU
21a, Bycullah Road, En2 8ed
Rear extension
Approved
Jan 2026
25/02622/HOU
15, Old Park View, En2 7eg
Rear extension
Approved
Sept 2025
25/02439/HOU
23, Oliver House, Windmill Hill, En2 7ab
Other householder work
Under consideration
–
25/02212/PMA
9, Chase Court Gardens, En2 8dh
Other householder work
Approved
Aug 2025
25/02331/HOU
23, Oliver House, Windmill Hill, En2 7ab
Other householder work
Not needed / lawful
Oct 2025
25/02213/PRAA
14, The Glade, En2 7qh
Side return or wrap-around
Approved
Aug 2025
25/02001/VAR
9, Chase Court Gardens, En2 8dh
Rear extension
Approved
May 2025
25/01229/HOU
42, Chase Court Gardens, En2 8dj
Loft or dormer
Approved
Jun 2025
25/01357/HOU
49, Perry Mead, En2 8bs
Rear extension
Approved
May 2025
25/01044/HOU
10a, Florence Drive, En2 8dg
Rear extension
Not needed / lawful
Mar 2025
25/00595/PRH
17, The Grove, En2 7px
Loft or dormer
Approved
Mar 2025
24/04376/HOU
58, Chase Green Avenue, En2 8en
Garage conversion or garage
Approved
Jan 2025
24/04298/HOU
12, Uplands Park Road, En2 7ps
Rear extension
Approved
Jan 2025
24/04135/HOU
3, Vulcan Gate, En2 7pp
Loft or dormer
Refused
Feb 2025
24/03988/HOU
6, 5, Crossfield Chambers, Gladbeck Way, En2 7ht
Other householder work
Approved
Jan 2025
24/04047/PMA
23, Oliver House, Windmill Hill, En2 7ab
Other householder work
Approved
Dec 2024
24/03407/PMA
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
100% (6)
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.