Land by postcode · NW area · NW3
What the open records say about the NW3 postcode district in Greater London: recent sales, planning designations and controls, and the council that decides applications. District-level facts to read before you sell or develop a plot in Camden, London.
Residential sales recorded by HM Land Registry between 2024-08 and 2026-07. This is market context for the district, not a land valuation: what a plot is worth depends on what can be built on it, which these figures do not show.
Sales in 24 months
1,116
Median sale price
£977,500
Median £ per m² of floor area
£15,833
Median, last 12m vs prior 12m
-2.5%
£985,000 → £960,000
Mix of sales: 3% detached, 5% semi-detached, 12% terraced, 80% flats.
New-build sales 2023–2024: 46 of 1,205 (4%). A rough proxy for recent building activity: these are homes sold by builders, not development sites.
For each designation on the planning.data.gov.uk register, the share of the 1318 live postcodes in NW3 whose centroid falls inside it. This measures postcodes, not land area, and says nothing about any individual plot.
996 of 1318 postcodes
Hampstead · Fitzjohns Netherhall · Belsize · Redington Frognal · Mansfield and 3 more
1318 of 1318 postcodes
8 separate directions recorded, each removing particular permitted development rights within a defined area.
No postcodes in NW3 fall inside: Green Belt, National Landscape (AONB), National Park.
Flood zones, tree preservation orders, local plan allocations, settlement boundaries and non-designated heritage are not included here and are checked in a full assessment.
76% of postcodes fall within a conservation area. Inside one, demolition needs consent, some permitted development rights are reduced, and new work is assessed against the character and appearance of the area.
100% of postcodes are covered by an Article 4 direction, which removes specific permitted development rights in that area, so changes that are automatic elsewhere need a planning application there.
These are district-level facts. The free assessment checks your actual boundary against the same registers and the local plan and tells you plainly what they mean for your plot.
Decided planning applications in NW3 since 2021, from the council registers, grouped by the kind of scheme a landowner might be weighing up. Extensions, conditions and tree works are left out. Counts, not estimates.
Taken from the units table on the planning form itself, so this is homes actually created, not a reading of the description. 54 decided since 2021, 8 refused, typically 343 days to a decision.
37 of 54
approved, 69%
47% across London
58 homes approved of 104 applied for
Approved examples
74 Haverstock Hill London NW3 2BE (1 new home)
Change of use of basement and ground floor from estate agent (Class E (c)) to residential (Class C3) to a two bedroom residential dwelling.
Approved 2022-05-25, Camden ref 2021/2817/P
Flat 3 & 4 17 Willoughby Road London NW3 1RT (1 new home)
Amalgamation of 2 flats to form 1 maisonette.
Approved 2021-11-18, Camden ref 2021/3548/P
25 Oakhill Avenue London NW3 7RD (1 new home)
Conversion from 2 self-contained units to a single family dwelling.
Approved 2021-10-19, Camden ref 2021/3579/P
By the kind of plot, from the wording of each proposal:
25 decided since 2021, 4 refused, typically 170 days to a decision
14 of 25
approved, 56%
43% across London
Approved examples
Flat A 30 Upper Park Road London NW3 2UT
Erection of a shed in rear garden for lower ground floor flat
Approved 2022-01-17, Camden ref 2021/5632/P
Land rear of Wildwood Cottage 17 North End London NW3 7HR
Erection of new split-level two storey dwelling
Approved 2024-10-02, Camden ref 2021/6191/P
Flat 5 2 Erskine Road London NW3 3AJ
Erection of a mansard roof, to convert a 2 bedroom flat into a 4 bedroom maisonette
Approved 2022-09-16, Camden ref 2022/2391/P
6 decided since 2021, 1 refused, typically 245 days to a decision
5 of 6
approved, 83%
49% across London
Approved examples
1 Beechworth Close London NW3 7UT
Demolition of existing house and detached garage and erection of detached single dwelling house incorporating basement level, indoor leisure...
Approved 2022-01-25, Barnet ref 21/5599/FUL
71 Platt's Lane London NW3 7NL
Demolition of the existing dwelling and erection of 3no. two storey dwellings with basement level and rooms in the roofspace. Associated ame...
Approved 2024-07-17, Barnet ref 23/3246/FUL
88 West Heath Road London NW3 7UJ
Demolition of existing dwelling and erection of two storey building with basement level and rooms in the roofspace comprising 6no. residenti...
Approved 2025-10-06, Barnet ref 24/5630/FUL
6 decided since 2021, 2 refused, typically 275 days to a decision
4 of 6
approved, 67%
45% across London
Approved examples
21 Belsize Park London NW3 4DU
Change of use and conversion of existing hotel (C1) and associated basement flat (C3) to single family 6-bedroom dwellinghouse (C3).
Approved 2022-09-15, Camden ref 2021/5882/P
3 Rosemont Road London NW3 6NG
Change of use of existing Class E floorspace to form 3 residential flats. Installation of screening to existing rear external terrace area. ...
Approved 2022-12-21, Camden ref 2022/1442/P
47 Heath Street London Camden NW3 6UA
Conversion of part ground and first, second and third floor from ancillary offices and self-contained flat to provide 1 no. 3 bedroom flat, ...
Approved 2024-03-27, Camden ref 2022/2354/P
Also decided here: 104 applications for outbuildings, annexes or garden buildings, 94 approved, typically 120 days.
Decided planning applications (not extensions, conditions or tree works) in this postcode district from the councils' own registers, classified by the wording of each proposal. Counts, not estimates; where a class has fewer than three applications it is not shown.
Camden covers 98% of the sampled postcodes in NW3.
Draw your boundary, tell us what you own, and an architect checks it against these registers and the local plan. Free, no obligation, and you get a straight written answer.
It depends on where the plot sits, not on the district average. In NW3, 0% of postcodes are in the Green Belt, 76% in a conservation area. Outside those designations the questions that decide it are whether the plot is inside or adjoining the settlement boundary in the local plan, whether it has its own road access, and what is next to it. A plot on the edge of a village or town with access has the best chance; an open field outside the settlement boundary rarely gets consent for housing whatever the market is doing.
Often, yes. 100% of postcodes in NW3 are under an Article 4 direction (8 separate directions), which withdraws particular permitted development rights, so an outbuilding, extension or change of use that is automatic elsewhere needs an application there. Outside those areas, permitted development applies to houses and their gardens but not to agricultural land or paddocks, where a new building or a new use normally needs permission or prior approval.
Developers look at three things before they talk about price: whether the plot is outside the Green Belt and any National Landscape, whether it sits inside or beside the settlement boundary, and what finished homes sell for. In NW3 the median sale is £977,500, and only 4% of 2023–2024 sales were new-build homes, so builders have been quiet here. A single plot usually goes to a local builder or a self-builder; a site for five or more homes attracts regional housebuilders, normally through an option or a conditional contract rather than an outright purchase, so the price you see quoted is not the price you receive.
There is no district figure for land, because a plot's value comes from what can be built on it, not from where it is. As a guide, a serviced plot with consent for one house commonly sells for around a third of the finished house value, which in NW3 would be measured against a £977,500 median sale. The same plot without consent, or inside the Green Belt, is worth a small fraction of that, and a paddock with no realistic route to consent is worth agricultural or amenity value only. The free check tells you which of those your plot is before you talk to anyone about a price.
Three places: Camden's local plan and its policies map for the settlement boundary and allocations, the council's planning register for what has been approved or refused on neighbouring land, and planning.data.gov.uk for the national designations. That is an evening's work if you know what you are looking for. The alternative is to draw your boundary on this site: an architect checks it against the same records and writes back within 48 hours with a plain answer, free and without obligation.
Computed from open-data records; district-level, not plot-level measurements. Sales: HM Land Registry Price Paid Data (2024-08-01 to 2026-07-31), © Crown copyright, Open Government Licence. Designations: planning.data.gov.uk (OGL), retrieved 2026-09-05; conservation areas and Article 4 directions are made locally and published on that national register. Postcode centroids: OS Code-Point Open 2026.3.0, contains OS data © Crown copyright and database right 2026. Place name is the most common post town in the sales records. Figures computed 2026-09-06.