PO12 3 postcode sector in the PO12 district
PO12 3 is a sector of the PO12 district: every postcode that starts PO12 3. It has 244 postcodes in use, 6 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.
Not sure what a sector is? UK postcode format explained.
Every postcode in the PO12 3 sector, and which are new since 2020
- New since 2020: 3
- In use before 2020: 241
Of the 244 postcodes in the PO12 3 sector that ONS places, 3 are new since 2020 and 241 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
The 3 newest postcodes
What do homes sell for in PO12 3?
Homes in PO12 3 sold for a typical £215,000 in the 12 months to September 2026, across 148 sales, HM Land Registry's figures show. The 12 months before gave £225,500 from 164 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £490,000 5 sales
- Semi-detached £290,000 31 sales
- Terraced £210,000 97 sales
- Flat or maisonette £131,000 15 sales
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value at the postcodes that start PO12 3. A typical price is the median, the middle sale, given from 5 sales or more.
How we work this out: house prices by postcodeSource: HM Land Registry Price Paid Data, files dated 28 October 2026.
Postcodes in PO12 3
Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.
Other sectors in PO12
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Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- HM Land Registry Price Paid Data
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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