What you could build at E12 6AP: 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 Manor Park South, Newham.
181extensions seen within 600 m in the last 10 years
23loft conversions within 600 m in the last 10 years
136.5extensions 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 Manor Park South.
Move to a home 20 m² bigger (about £522,000)
Stamp duty on the new home
£16,100
Estate agent on yours 1.2% + VAT
£6,192
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£27,392
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
−£55,200
Money gone
£2,300
On these figures, extending loses about £25,092 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.
3, Seventh Avenue, E12 5jl
Loft or dormer
Under consideration
–
26/01830/CLP
67, Second Avenue, E12 6ej
Loft or dormer
Under consideration
–
26/01834/CLP
88, Carlyle Road, E12 6bp
Outbuilding or garden room
Refused
Sept 2026
26/01721/HH
31, Third Avenue, E12 6dx
Loft or dormer
Approved
Sept 2026
26/01549/CLP
23, Rixsen Road, E12 6rn
Loft or dormer
Approved
Aug 2026
26/01452/CLP
23, Rixsen Road, E12 6rn
Rear extension
Not needed / lawful
Aug 2026
26/01453/PREHH
23, Rixsen Road, E12 6rn
Side return or wrap-around
Withdrawn
Aug 2026
26/01454/CLP
11, Meanley Road, E12 6ap
Loft or dormer
Approved
Aug 2026
26/01308/CLP
337, Monega Road, E12 6tz
Loft or dormer
Approved
Aug 2026
26/01280/CLP
3, Seventh Avenue, E12 5jl
Loft or dormer
Refused
Aug 2026
26/01285/CLP
18, The Warren, E12 5hy
Loft or dormer
Approved
Jul 2026
26/01251/CLP
9, Coleridge Avenue, E12 6rq
Loft or dormer
Approved
Jul 2026
26/01190/CLP
34, Sixth Avenue, E12 5pp
Rear extension
Approved
Jul 2026
26/01154/HH
49, Coleridge Avenue, E12 6rq
Loft or dormer
Approved
Jul 2026
26/01108/CLP
173, Little Ilford Lane, E12 5pj
Loft or dormer
Approved
Jul 2026
26/01052/CLP
39, Carlton Road, E12 5bg
Loft or dormer
Approved
Aug 2026
26/00940/HH
91, Essex Road, E12 6qr
Rear extension
Approved
Jun 2026
26/00812/HH
143, Fourth Avenue, E12 6dp
Side return or wrap-around
Approved
Jun 2026
26/00795/HH
3, Seventh Avenue, E12 5jl
Side return or wrap-around
Approved
May 2026
26/00775/HH
141, Fourth Avenue, E12 6dp
Side return or wrap-around
Approved
May 2026
26/00646/HH
100, First Avenue, E12 6aj
Loft or dormer
Approved
Apr 2026
26/00425/CLP
60, Sheridan Road, E12 6qx
Loft or dormer
Approved
Mar 2026
26/00192/CLP
157, Third Avenue, E12 6ds
Rear extension
Approved
Mar 2026
26/00122/HH
4, Albany Road, E12 5be
Rear extension
Approved
Feb 2026
25/02698/HH
728, Romford Road, E12 6bt
Other householder work
Refused
Jan 2026
25/02432/PRECOU
157, Third Avenue, E12 6ds
Loft or dormer
Approved
Jan 2026
25/02562/CLP
17, Forest Drive, E12 5df
Side extension
Approved
Jan 2026
25/02435/HH
180, Third Avenue, E12 6dt
Two-storey extension
Approved
Dec 2025
25/02385/HH
183, Church Road, E12 6hb
Rear extension
Approved
Nov 2025
25/02192/HH
25, Fourth Avenue, E12 6db
Other householder work
Approved
Oct 2025
25/01699/HH
136, Third Avenue, E12 6dt
Two-storey extension
Approved
Sept 2025
25/01683/HH
167, Little Ilford Lane, E12 5pj
Rear extension
Approved
Sept 2025
25/01642/HH
34, Sixth Avenue, E12 5pp
Other householder work
Refused
Oct 2025
25/01546/HH
2, Wentworth Road, E12 5bd
Rear extension
Approved
Nov 2025
25/01363/HH
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.
–
77% (48)
88%
8 weeks
Basement
–
77% (31)
83%
9 weeks
Porch or front extension
–
54% (26)
81%
8 weeks
Share of decided applications approved since 2023 (number decided in brackets). Withdrawn applications aren't counted; many are withdrawn when refusal looks likely.