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Improving at TW2 5TP

What you could build at TW2 5TP: 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 Strawberry Hill, Richmond upon Thames.

182extensions seen within 600 m in the last 10 years

16loft conversions within 600 m in the last 10 years

86%of 182 householder applications nearby approved (since 2023)

98.2extensions 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.
In the Twickenham Green conservation area: permitted development is narrower (for example no side extensions or roof cladding), and demolition and works to trees need consent.
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.

What neighbours have built

Home	Work	Seen	Space added	Floor area	Rooms	Distance
2, Popes Court, Popes Avenue	Extension	2026	+29 m²	83 m² → 112 m²	–	82 m
52, Hampton Road	Extension	2026	+58 m²	175 m² → 233 m²	–	318 m
42, Chestnut Road	Extension	2026	+29 m²	70 m² → 99 m²	3 → 4	353 m
76, May Road	Extension	2026	+13 m²	109 m² → 122 m²	6 → 7	374 m
73, Radnor Road	Extension	2026	+50 m²	93 m² → 143 m²	5 → 7	384 m
52, Gould Road	Extension	2026	+12 m²	106 m² → 118 m²	5 → 5	428 m

Planning applications nearby

Address	Work	Outcome	Decided	Drawings and agent
2, Hunting Gate Mews, Tw2 6rd	Rear extension	Under consideration	–	PA26/2689
72, Mereway Road, Tw2 6rg	Two-storey extension	Under consideration	–	PA26/1246
23, Upper Grotto Road, Tw1 4ng	Side extension	Under consideration	–	PA26/2971
57, Andover Road, Tw2 6pd	Side return or wrap-around	Under consideration	–	PA26/2849
44, May Road, Tw2 6qp	Rear extension	Approved	Aug 2026	PA26/2572
29, Talbot Road, Tw2 6sj	Loft or dormer	Under consideration	–	PA26/2577
38, Hampton Road	Other householder work	Approved	Sept 2026	PA26/2528

How often householder applications are approved

Work	Strawberry Hill	Richmond upon Thames	London	Typical decision time
All householder applications	91% (132)	–	80%	8 weeks
Loft or dormer	85% (46)	–	81%	8 weeks
Rear extension	92% (37)	–	79%	8 weeks
Two-storey extension	83% (6)	–	72%	8 weeks
Other householder work	100% (13)	–	70%	8 weeks
Side return or wrap-around	–	–	88%	8 weeks
Windows, doors or cladding	–	–	90%	8 weeks
Outbuilding or garden room	90% (10)	–	79%	8 weeks
Side extension	–	–	86%	8 weeks
Garage conversion or garage	–

Cost and the value it adds

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 Strawberry Hill.

Your home is worthExtra space you need (m²)Homes here sell for, per m²Building cost per m²Share of that an extension adds (%)

Move to a home 20 m² bigger (about £862,000)

Stamp duty on the new home	£33,100
Estate agent on yours 1.2% + VAT	£10,512
Solicitors, buying and selling	£3,000
Survey	£600
Removals	£1,500
Money gone	£48,712

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	−£79,200
Money gone	−£21,700

On these figures, extending loses about £70,412 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.

Find help: RIBA Find an Architect ↗ · CIAT architectural technologists ↗ · TrustMark tradespeople ↗ · Federation of Master Builders ↗ · Planning Portal guides ↗

General guidance, not planning or legal advice. Fees and rules as checked in October 2026; confirm with the council.

Energy certificates: MHCLG (OGL). Planning applications: GLA Planning London Datahub. Conservation areas and Article 4: planning.data.gov.uk (OGL).

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Improving at TW2 5TP

The rules at this address

What neighbours have built

Planning applications nearby

How often householder applications are approved

Cost and the value it adds

Move or improve?

Getting started

Go deeper

Improving at TW2 5TP

TW2 5TP is on Popes Avenue

The rules at this address

What neighbours have built

Planning applications nearby

How often householder applications are approved

Cost and the value it adds

Move or improve?

Getting started

Go deeper

TW2 5TP is on Popes Avenue