Land by postcode · TW area · Hounslow
Hounslow covers three postcode districts, TW3, TW4 and TW5, in Greater London. Planning applications here are decided mostly by the Hounslow planning authority, with Richmond upon Thames covering the rest. Below: what homes sold for, which planning controls apply, and what that means before you sell or develop a plot in Hounslow.
Residential sales recorded by HM Land Registry between 2024-08 and 2026-07 across all three of Hounslow's postcode districts. This is market context for the town, 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
802
Median sale price
£460,000
Median £ per m² of floor area
£5,922
Median, last 12m vs prior 12m
-3.2%
£465,000 → £450,000
Mix of sales: 3% detached, 34% semi-detached, 29% terraced, 34% flats.
New-build sales 2023–2024: 83 of 887 (9%). 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 1,615 live postcodes in Hounslow's three districts whose centroid falls inside it. This measures postcodes, not land area, and says nothing about any individual plot.
12 of 1,615 postcodes
Mostly in TW5 and TW4: 9 of TW5's 400 postcodes and 3 of TW4's 428 postcodes.
76 of 1,615 postcodes
Heston Village · Cranford Park · Cranford Village · St Stephen's · St Paul's Church and 1 more
1,495 of 1,615 postcodes
2 separate directions recorded, each removing particular permitted development rights within a defined area. The largest named one is the Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction.
No postcodes in Hounslow's three districts 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.
1% of postcodes in Hounslow are inside the Green Belt, so Hounslow has land both inside and outside it. The Green Belt postcodes sit mostly in TW5 and TW4. Which side of the boundary a plot sits on determines whether the Green Belt tests apply to it at all.
93% 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 town-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 Hounslow 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. 186 decided since 2021, 103 refused.
66 of 186
approved, 35%
48% across London
194 homes approved of 538 applied for
Approved examples
27 CRANFORD LANE, HOUNSLOW (4 new homes)
Prior approval for the conversion of office building (Class E) into four residential units (Class C3)
Approved 2024-04-29, Hounslow ref PAR/2024/0760
2 DORSET WAYE, HOUNSLOW (2 new homes)
Demolition of existing bungalow and garage; erection of two semi-detached dwellings with hard/soft landscaping, accesses and parking
Approved 2023-05-04, Hounslow ref P/2023/0321
112 WELLINGTON ROAD NORTH, HOUNSLOW (1 new home)
Erection of a two storey house with parking and amenity space following the demolition of the existing building
Approved 2023-01-31, Hounslow ref P/2022/1881
By the kind of plot, from the wording of each proposal:
7 decided since 2021, 4 refused
1 of 7
approved, 14%
36% across London
Approved examples
24 ST LEONARDS GARDENS, HOUNSLOW
Erection of one bungalow with associated parking and private amenity at the rear of 24 with access from Beaufort Gardens
Approved 2021-04-13, Hounslow ref P/2021/0199
16 decided since 2021, 9 refused
5 of 16
approved, 31%
42% across London
Approved examples
1 Albert Road, Hounslow
Conversion of the existing house into two self-contained units with associated amenity space, cycle and refuse storage, and two off-street p...
Approved 2025-12-17, Hounslow ref P/2025/2963
78 decided since 2021, 40 refused
30 of 78
approved, 38%
45% across London
Approved examples
LAND TO THE REAR OF RECTORY COURT RECTORY ROAD, HOUNSLOW
Erection of four houses with associated landscaping and amenity space.
Approved 2022-11-16, Hounslow ref P/2022/1934
12 decided since 2021, 6 refused
5 of 12
approved, 42%
46% across London
Approved examples
358 Staines Road, Hounslow
Conversion of the existing takeaway unit on the ground floor into a self contained flat.
Approved 2025-08-31, Hounslow ref P/2025/1599
Also decided here: 147 applications for outbuildings, annexes or garden buildings, 81 approved.
Decided planning applications (not extensions, conditions or tree works) from the councils' own registers, summed across the 3 of 3 postcode districts in Hounslow that carry them, classified by the wording of each proposal. Counts, not estimates; within a district, a class with fewer than three applications is not counted.
Hounslow's three districts are split between planning authorities: Hounslow (94% of sampled postcodes), Richmond upon Thames (4%).
Borough guides: Selling land in Hounslow · Selling land in Richmond upon Thames
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 town average. Across Hounslow, 1% of postcodes are in the Green Belt and 5% in a conservation area. Green Belt land is concentrated in TW5 and TW4; on Green Belt or National Landscape plots a new home is the exception and needs a specific case, and a replacement dwelling, a conversion or a modest extension is usually the realistic route. 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.
Often, yes. 93% of postcodes in Hounslow are under an Article 4 direction (2 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 Hounslow the median sale is £460,000, from £430,000 in TW3 to £521,000 in TW5, and only 9% 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 town 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 Hounslow would be measured against a £460,000 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.
Computed from open-data records; town-level, not plot-level measurements. Hounslow here means the three postcode districts whose most common post town is Hounslow. 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); conservation areas and Article 4 directions are made locally and published on that national register. Postcode centroids: OS Code-Point Open, contains OS data © Crown copyright and database right 2026. Figures computed 2026-10-19.