TN21 9 postcode sector in the TN21 district
TN21 9 is a sector of the TN21 district: every postcode that starts TN21 9. It has 173 postcodes in use, one of them a large-user postcode. 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 TN21 9 sector, and which are new since 2020
- New since 2020: 9
- In use before 2020: 164
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 173 postcodes in the TN21 9 sector that ONS places, 9 are new since 2020 and 164 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. A dashed outline shows where 5 or more lie within 550 metres of each other. It is not a boundary, and 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 5 newest postcodes
Where the new postcodes lie together
- 5 new postcodes since 2020, outlined on the map. TN21 9DW, is the newest of them.
What do homes sell for in TN21 9?
Homes in TN21 9 sold for a typical £506,250 in the 12 months to August 2026, across 34 sales, HM Land Registry's figures show. The 12 months before gave £447,500 from 36 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £607,000 21 sales
- Semi-detached £470,000 8 sales
- Terraced £283,000 5 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 TN21 9. 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 September 2026.
Postcodes in TN21 9
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 TN21
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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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