UB9 4 postcode sector in the UB9 district

UB9 4 is a sector of the UB9 district: every postcode that starts UB9 4. It has 76 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 UB9 4 sector, and which are new since 2020

Map of every postcode in the UB9 4 sector, by new since 2020 Of the 76 postcodes in the UB9 4 sector that ONS places, 76 were in use before 2020. Places named: Gerrards Cross & Denham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A412A40 UB9 4AA: before 2020UB9 4AD: before 2020UB9 4AF: before 2020UB9 4AG: before 2020UB9 4AH: before 2020UB9 4AJ: before 2020UB9 4AL: before 2020UB9 4AN: before 2020UB9 4AP: before 2020UB9 4AQ: before 2020UB9 4AR: before 2020UB9 4AS: before 2020UB9 4AT: before 2020UB9 4AU: before 2020UB9 4AW: before 2020UB9 4AX: before 2020UB9 4AY: before 2020UB9 4AZ: before 2020UB9 4BA: before 2020UB9 4BB: before 2020UB9 4BD: before 2020UB9 4BE: before 2020UB9 4BF: before 2020UB9 4BS: before 2020UB9 4BT: before 2020UB9 4BX: before 2020UB9 4DA: before 2020UB9 4DB: before 2020UB9 4DE: before 2020UB9 4DF: before 2020UB9 4DG: before 2020UB9 4DH: before 2020UB9 4DN: before 2020UB9 4DP: before 2020UB9 4DQ: before 2020UB9 4DS: before 2020UB9 4DW: before 2020UB9 4DY: before 2020UB9 4DZ: before 2020UB9 4EA: before 2020UB9 4EB: before 2020UB9 4ED: before 2020UB9 4EE: before 2020UB9 4EF: before 2020UB9 4EG: before 2020UB9 4EH: before 2020UB9 4EJ: before 2020UB9 4EL: before 2020UB9 4EP: before 2020UB9 4EQ: before 2020UB9 4GY: before 2020UB9 4HA: before 2020UB9 4HB: before 2020UB9 4HD: before 2020UB9 4HE: before 2020UB9 4HF: before 2020UB9 4HG: before 2020UB9 4HH: before 2020UB9 4HJ: before 2020UB9 4HL: before 2020UB9 4HN: before 2020UB9 4HP: before 2020UB9 4HQ: before 2020UB9 4HR: before 2020UB9 4HS: before 2020UB9 4HW: before 2020UB9 4LA: before 2020UB9 4LB: before 2020UB9 4LD: before 2020UB9 4LE: before 2020UB9 4LF: before 2020UB9 4LG: before 2020UB9 4LJ: before 2020UB9 4LQ: before 2020UB9 4NA: before 2020 Gerrards Cross & Denham Map of every postcode in the UB9 4 sector, by new since 2020 Of the 76 postcodes in the UB9 4 sector that ONS places, 76 were in use before 2020. Places named: Gerrards Cross & Denham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A40M25A412 Gerrards Cross & Denham
  • New since 2020: 0
  • In use before 2020: 76

Of the 76 postcodes in the UB9 4 sector that ONS places, 76 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. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; 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

What do homes sell for in UB9 4?

Homes in UB9 4 sold for a typical £475,000 in the 12 months to August 2026, across 23 sales, down 16.5% on the 12 months before, HM Land Registry's figures show.

£475,000 typical price, the 12 months to August 2026
£569,000 12 months to August 2025
▼ down 16.5% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £528,000 8 sales
  • Terraced £450,000 6 sales
  • Flat or maisonette £323,000 7 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 UB9 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

Postcodes in UB9 4

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.

UB9 4AAUB9 4ABUB9 4ADUB9 4AFUB9 4AGUB9 4AHUB9 4AJUB9 4ALUB9 4ANUB9 4APUB9 4AQUB9 4ARUB9 4ASUB9 4ATUB9 4AUUB9 4AWUB9 4AXUB9 4AYUB9 4AZUB9 4BAUB9 4BBUB9 4BDUB9 4BEUB9 4BFUB9 4BSUB9 4BTUB9 4BXUB9 4DAUB9 4DBUB9 4DEUB9 4DFUB9 4DGUB9 4DHUB9 4DNUB9 4DPUB9 4DQUB9 4DSUB9 4DWUB9 4DYUB9 4DZUB9 4EAUB9 4EBUB9 4EDUB9 4EEUB9 4EFUB9 4EGUB9 4EHUB9 4EJUB9 4ELUB9 4EPUB9 4EQUB9 4GYUB9 4HAUB9 4HBUB9 4HDUB9 4HEUB9 4HFUB9 4HGUB9 4HHUB9 4HJUB9 4HLUB9 4HNUB9 4HPUB9 4HQUB9 4HRUB9 4HSUB9 4HWUB9 4LAUB9 4LBUB9 4LDUB9 4LEUB9 4LFUB9 4LGUB9 4LJUB9 4LQUB9 4NA

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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