GL51 4 postcode sector in the GL51 district

GL51 4 is a sector of the GL51 district: every postcode that starts GL51 4. It has 74 postcodes in use, 3 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 GL51 4 sector, by flood risk

Map of every postcode in the GL51 4 sector, by flood risk Of the 74 postcodes in the GL51 4 sector that ONS places, 1 have a home or business at high risk and 73 are not on the Environment Agency's at-risk list. Places named: Cheltenham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M5A417A40 GL51 4AA: not on the flood risk listGL51 4AD: not on the flood risk listGL51 4AG: not on the flood risk listGL51 4BB: not on the flood risk listGL51 4GA: not on the flood risk listGL51 4GQ: not on the flood risk listGL51 4GW: not on the flood risk listGL51 4SA: not on the flood risk listGL51 4SB: not on the flood risk listGL51 4SD: not on the flood risk listGL51 4SE: not on the flood risk listGL51 4SF: not on the flood risk listGL51 4SG: not on the flood risk listGL51 4SH: not on the flood risk listGL51 4SJ: not on the flood risk listGL51 4SL: not on the flood risk listGL51 4SN: not on the flood risk listGL51 4SP: not on the flood risk listGL51 4SR: not on the flood risk listGL51 4SS: not on the flood risk listGL51 4ST: not on the flood risk listGL51 4SU: not on the flood risk listGL51 4SW: not on the flood risk listGL51 4SX: not on the flood risk listGL51 4SY: not on the flood risk listGL51 4SZ: not on the flood risk listGL51 4TA: not on the flood risk listGL51 4TB: not on the flood risk listGL51 4TD: not on the flood risk listGL51 4TE: not on the flood risk listGL51 4TF: not on the flood risk listGL51 4TG: not on the flood risk listGL51 4TH: not on the flood risk listGL51 4TJ: not on the flood risk listGL51 4TL: not on the flood risk listGL51 4TN: not on the flood risk listGL51 4TQ: not on the flood risk listGL51 4TT: not on the flood risk listGL51 4TU: not on the flood risk listGL51 4TW: not on the flood risk listGL51 4TX: not on the flood risk listGL51 4TY: not on the flood risk listGL51 4TZ: not on the flood risk listGL51 4UA: not on the flood risk listGL51 4UB: not on the flood risk listGL51 4UD: not on the flood risk listGL51 4UF: not on the flood risk listGL51 4UG: not on the flood risk listGL51 4UH: not on the flood risk listGL51 4UJ: not on the flood risk listGL51 4UL: not on the flood risk listGL51 4UN: not on the flood risk listGL51 4UP: not on the flood risk listGL51 4UQ: not on the flood risk listGL51 4UR: not on the flood risk listGL51 4US: not on the flood risk listGL51 4UT: not on the flood risk listGL51 4WJ: not on the flood risk listGL51 4XA: not on the flood risk listGL51 4XB: not on the flood risk listGL51 4XD: not on the flood risk listGL51 4XF: not on the flood risk listGL51 4XJ: not on the flood risk listGL51 4XL: not on the flood risk listGL51 4XN: not on the flood risk listGL51 4XP: not on the flood risk listGL51 4XQ: not on the flood risk listGL51 4XT: not on the flood risk listGL51 4XU: not on the flood risk listGL51 4XW: not on the flood risk listGL51 4YD: not on the flood risk listGL51 4UW: high flood risk Cheltenham Map of every postcode in the GL51 4 sector, by flood risk Of the 74 postcodes in the GL51 4 sector that ONS places, 1 have a home or business at high risk and 73 are not on the Environment Agency's at-risk list. Places named: Cheltenham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A40 Cheltenham
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 73

Of the 74 postcodes in the GL51 4 sector that ONS places, 1 have a home or business at high risk and 73 are not on the Environment Agency's at-risk list.

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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: 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. How we use them

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

What do homes sell for in GL51 4?

Homes in GL51 4 sold for a typical £495,000 in the 12 months to August 2026, across 25 sales, up 22.2% on the 12 months before, HM Land Registry's figures show.

£495,000 typical price, the 12 months to August 2026
£405,000 12 months to August 2025
▲ up 22.2% on the 12 months before
  • Detached £650,000 16 sales
  • Semi-detached £352,000 7 sales
  • Terraced 2 sales, too few to price

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 GL51 4. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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