Land by postcode · HA area · HA7
What the open records say about the HA7 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 Stanmore.
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
567
Median sale price
£600,000
Median £ per m² of floor area
£6,889
Median, last 12m vs prior 12m
-3.5%
£610,000 → £588,500
Mix of sales: 17% detached, 36% semi-detached, 11% terraced, 37% flats.
New-build sales 2023–2024: 55 of 539 (10%). 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 847 live postcodes in HA7 whose centroid falls inside it. This measures postcodes, not land area, and says nothing about any individual plot.
81 of 847 postcodes
Harrow · Barnet
35 of 847 postcodes
Little Common Conservation Area, Stanmore · Stanmore Hill Conservation Area · Old Church Lane Conservation Area Stanmore · Kerry Avenue Conservation Area
10 of 847 postcodes
3 separate directions recorded, each removing particular permitted development rights within a defined area.
No postcodes in HA7 fall inside: 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.
10% of postcodes in HA7 are inside the Green Belt, so Stanmore has land both inside and outside it. Which side of the boundary a plot sits on determines whether the Green Belt tests apply to it at all.
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 HA7 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, 27 refused, typically 109 days to a decision.
16 of 54
approved, 30%
47% across London
34 homes approved of 133 applied for
Approved examples
Brockley Grange Farm Brockley Hill Stanmore HA7 4LW (2 new homes)
Creation of new self-contained dwelling house within existing barn. Retention of existing main dwelling house. Erection of two storey dwelli...
Approved 2022-10-11, Barnet ref 22/1266/FUL
4 Cranmer Close, Stanmore (1 new home)
Redevelopment to provide two storey dwelling with habitable roofspace; landscaping; parking (Demolition of existing dwelling)
Approved 2022-11-24, Harrow ref P/2092/22
GROVE FARM Warren Lane, Stanmore (1 new home)
Change of use of part of existing equestrian field (Sui Generis) to residential use (C3) and demolition of the existing single storey dwelli...
Approved 2024-10-31, Harrow ref P/0539/23
By the kind of plot, from the wording of each proposal:
8 decided since 2021, 2 refused, typically 105 days to a decision
2 of 8
approved, 25%
41% across London
Approved examples
9 Kipling Place, Stanmore
Conversion of dwelling into two flats (2 X 2 bed); external alterations; separate amenity space; bin and cycle stores
Approved 2021-10-18, Harrow ref P/2933/21
109 Howberry Road, Edgware
Conversion of dwelling into 2 self contained flats (1 X 3 bed and 1 x 2 bed) with associated parking, cycle and refuse stores and private am...
Approved 2026-01-27, Harrow ref PL/2554/25
12 decided since 2021, 6 refused, typically 120 days to a decision
3 of 12
approved, 25%
43% across London
Approved examples
Brockley Grange Farm Brockley Hill Stanmore HA7 4LW
Creation of new self-contained dwelling house within existing barn. Retention of existing main dwelling house. Erection of two storey dwelli...
Approved 2022-10-11, Barnet ref 22/1266/FUL
GROVE FARM Warren Lane, Stanmore
Change of use of part of existing equestrian field (Sui Generis) to residential use (C3) and demolition of the existing single storey dwelli...
Approved 2024-10-31, Harrow ref P/0539/23
77 Dennis Lane, Stanmore
Construction of pool house with covered outside dining to rear (demolition of existing pool house)
Approved 2026-03-30, Harrow ref PL/2827/25
3 decided since 2021, 2 refused, typically 122 days to a decision
1 of 3
approved
49% across London
Approved examples
63 Dennis Lane, Stanmore
Demolition of existing dwelling house and replacement with new dwelling house
Approved 2025-02-10, Harrow ref PL/2775/24
Also decided here: 16 applications for outbuildings, annexes or garden buildings, 12 approved, typically 63 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.
Harrow covers 99% of the sampled postcodes in HA7.
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 HA7, 10% of postcodes are in the Green Belt, 4% in a conservation area. On Green Belt or National Landscape plots a new home is the exception and needs a specific case; a replacement dwelling, a conversion or a modest extension is usually the realistic route there. 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. 1% of postcodes in HA7 are under an Article 4 direction (3 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 HA7 the median sale is £600,000, and only 10% 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 HA7 would be measured against a £600,000 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: Harrow'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.