Land by postcode · SO area · Southampton
Southampton covers twelve postcode districts, SO14, SO15, SO16, SO17, SO18, SO19, SO30, SO31, SO32, SO40, SO45 and SO52, in Southampton. Planning applications here are decided mostly by the City of Southampton planning authority, with New Forest, Eastleigh, Fareham, Winchester and Test Valley covering the rest. Below: what homes sold for, which planning controls apply, and what that means before you sell or develop a plot in Southampton.
Residential sales recorded by HM Land Registry between 2024-08 and 2026-07 across all twelve of Southampton'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
10,897
Median sale price
£310,000
Median £ per m² of floor area
£3,500
Median, last 12m vs prior 12m
-3.2%
£315,000 → £305,000
Mix of sales: 29% detached, 27% semi-detached, 24% terraced, 21% flats.
New-build sales 2023–2024: 834 of 10,965 (8%). A rough proxy for recent building activity: these are homes sold by builders, not development sites.
| District | Sales, 24m | Median | Mainly decided by |
|---|---|---|---|
| SO14 | 441 | £210,000 | City of Southampton |
| SO15 | 930 | £260,000 | City of Southampton |
| SO16 | 1,264 | £275,000 | City of Southampton |
| SO17 | 363 | £255,000 | City of Southampton |
| SO18 | 926 | £280,000 | City of Southampton |
| SO19 | 1,360 | £266,000 | City of Southampton |
| SO30 | 1,041 | £345,000 | Eastleigh |
| SO31 | 1,510 | £375,000 | Fareham |
| SO32 | 844 | £430,000 | Winchester |
| SO40 | 1,128 | £335,000 | New Forest |
| SO45 | 856 | £327,500 | New Forest |
| SO52 | 234 | £370,000 | Test Valley |
For each designation on the planning.data.gov.uk register, the share of the 11,067 live postcodes in Southampton's twelve districts whose centroid falls inside it. This measures postcodes, not land area, and says nothing about any individual plot.
426 of 11,067 postcodes
New Forest · South Downs
542 of 11,067 postcodes
Carlton Crescent · Oxford Street · Old Town West · Cranbury Place · Old Town North and 43 more
7,113 of 11,067 postcodes
16 separate directions recorded, each removing particular permitted development rights within a defined area. The largest named one is the HMO.
No postcodes in Southampton's twelve districts fall inside: Green Belt, National Landscape (AONB).
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.
64% 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.
Southampton's twelve districts are split between planning authorities: City of Southampton (52% of sampled postcodes), New Forest (19%), Eastleigh (13%), Fareham (6%), Winchester (6%), Test Valley (4%).
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 Southampton, 0% of postcodes are in the Green Belt and 5% 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.
Often, yes. 64% of postcodes in Southampton are under an Article 4 direction (16 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 Southampton the median sale is £310,000, from £210,000 in SO14 to £430,000 in SO32, and only 8% 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 Southampton would be measured against a £310,000 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. Southampton here means the twelve postcode districts whose most common post town is Southampton. 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.