SY1 1 postcode sector in the SY1 district
SY1 1 is a sector of the SY1 district: every postcode that starts SY1 1. It has 169 postcodes in use, 19 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 SY1 1 sector, and which are new since 2020
- New since 2020: 2
- In use before 2020: 167
Of the 169 postcodes in the SY1 1 sector that ONS places, 2 are new since 2020 and 167 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 2 newest postcodes
What do homes sell for in SY1 1?
Homes in SY1 1 sold for a typical £312,500 in the 12 months to September 2026, across 24 sales, HM Land Registry's figures show. The 12 months before gave £249,000 from 36 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.
- Detached 3 sales, too few to price
- Semi-detached 1 sale, too few to price
- Terraced £517,500 7 sales
- Flat or maisonette £265,000 13 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 SY1 1. 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 SY1 1
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 SY1
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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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