RG18 4 postcode sector in the RG18 district

RG18 4 is a sector of the RG18 district: every postcode that starts RG18 4. It has 99 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the RG18 4 sector, and which are new since 2020

Map of every postcode in the RG18 4 sector, by new since 2020 Of the 99 postcodes in the RG18 4 sector that ONS places, 2 are new since 2020 and 97 were in use before 2020. Places named: Thatcham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. RG18 4AA: before 2020RG18 4AB: before 2020RG18 4AE: before 2020RG18 4BA: before 2020RG18 4BG: before 2020RG18 4BP: before 2020RG18 4BQ: before 2020RG18 4BT: before 2020RG18 4BU: before 2020RG18 4BW: before 2020RG18 4BX: before 2020RG18 4BY: before 2020RG18 4BZ: before 2020RG18 4DA: before 2020RG18 4DB: before 2020RG18 4DD: before 2020RG18 4DE: before 2020RG18 4DF: before 2020RG18 4DG: before 2020RG18 4DH: before 2020RG18 4DJ: before 2020RG18 4DL: before 2020RG18 4DN: before 2020RG18 4DP: before 2020RG18 4DQ: before 2020RG18 4DR: before 2020RG18 4DS: before 2020RG18 4DT: before 2020RG18 4DU: before 2020RG18 4DX: before 2020RG18 4DY: before 2020RG18 4DZ: before 2020RG18 4EA: before 2020RG18 4EB: before 2020RG18 4ED: before 2020RG18 4EE: before 2020RG18 4EF: before 2020RG18 4EG: before 2020RG18 4EH: before 2020RG18 4EJ: before 2020RG18 4EL: before 2020RG18 4EN: before 2020RG18 4EP: before 2020RG18 4ER: before 2020RG18 4ES: before 2020RG18 4ET: before 2020RG18 4EU: before 2020RG18 4EX: before 2020RG18 4EY: before 2020RG18 4EZ: before 2020RG18 4GE: before 2020RG18 4HB: before 2020RG18 4JP: before 2020RG18 4JS: before 2020RG18 4JU: before 2020RG18 4JW: before 2020RG18 4LA: before 2020RG18 4LB: before 2020RG18 4LD: before 2020RG18 4LE: before 2020RG18 4LG: before 2020RG18 4LH: before 2020RG18 4LJ: before 2020RG18 4LL: before 2020RG18 4LN: before 2020RG18 4LP: before 2020RG18 4LQ: before 2020RG18 4LR: before 2020RG18 4LS: before 2020RG18 4LT: before 2020RG18 4LU: before 2020RG18 4LW: before 2020RG18 4LX: before 2020RG18 4LY: before 2020RG18 4NA: before 2020RG18 4NB: before 2020RG18 4ND: before 2020RG18 4NF: before 2020RG18 4NL: before 2020RG18 4NN: before 2020RG18 4NP: before 2020RG18 4NU: before 2020RG18 4NW: before 2020RG18 4NX: before 2020RG18 4NY: before 2020RG18 4QH: before 2020RG18 4QJ: before 2020RG18 4QL: before 2020RG18 4QN: before 2020RG18 4QP: before 2020RG18 4QR: before 2020RG18 4QS: before 2020RG18 4QT: before 2020RG18 4QU: before 2020RG18 4QW: before 2020RG18 4QX: before 2020RG18 4QY: before 2020RG18 4AD: new since 2020RG18 4AF: new since 2020 Thatcham Map of every postcode in the RG18 4 sector, by new since 2020 Of the 99 postcodes in the RG18 4 sector that ONS places, 2 are new since 2020 and 97 were in use before 2020. Places named: Thatcham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Thatcham
  • New since 2020: 2
  • In use before 2020: 97

Of the 99 postcodes in the RG18 4 sector that ONS places, 2 are new since 2020 and 97 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.

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

The 2 newest postcodes

RG18 4AFFebruary 2026RG18 4ADNovember 2022

What do homes sell for in RG18 4?

Homes in RG18 4 sold for a typical £385,500 in the 12 months to August 2026, across 55 sales, down 1.2% on the 12 months before, HM Land Registry's figures show.

£385,500 typical price, the 12 months to August 2026
£390,000 12 months to August 2025
▼ down 1.2% on the 12 months before
  • Detached £556,625 22 sales
  • Semi-detached £340,000 19 sales
  • Terraced £381,250 10 sales
  • Flat or maisonette 4 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 RG18 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 RG18 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.

RG18 4AARG18 4ABRG18 4ADRG18 4AERG18 4AFRG18 4BARG18 4BGRG18 4BPRG18 4BQRG18 4BTRG18 4BURG18 4BWRG18 4BXRG18 4BYRG18 4BZRG18 4DARG18 4DBRG18 4DDRG18 4DERG18 4DFRG18 4DGRG18 4DHRG18 4DJRG18 4DLRG18 4DNRG18 4DPRG18 4DQRG18 4DRRG18 4DSRG18 4DTRG18 4DURG18 4DXRG18 4DYRG18 4DZRG18 4EARG18 4EBRG18 4EDRG18 4EERG18 4EFRG18 4EGRG18 4EHRG18 4EJRG18 4ELRG18 4ENRG18 4EPRG18 4ERRG18 4ESRG18 4ETRG18 4EURG18 4EXRG18 4EYRG18 4EZRG18 4GERG18 4HBRG18 4JPRG18 4JSRG18 4JURG18 4JWRG18 4LARG18 4LBRG18 4LDRG18 4LERG18 4LGRG18 4LHRG18 4LJRG18 4LLRG18 4LNRG18 4LPRG18 4LQRG18 4LRRG18 4LSRG18 4LTRG18 4LURG18 4LWRG18 4LXRG18 4LYRG18 4NARG18 4NBRG18 4NDRG18 4NFRG18 4NLRG18 4NNRG18 4NPRG18 4NURG18 4NWRG18 4NXRG18 4NYRG18 4QHRG18 4QJRG18 4QLRG18 4QNRG18 4QPRG18 4QRRG18 4QSRG18 4QTRG18 4QURG18 4QWRG18 4QXRG18 4QY

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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