RM12 4 postcode sector in the RM12 district

RM12 4 is a sector of the RM12 district: every postcode that starts RM12 4. It has 256 postcodes in use, 11 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 RM12 4 sector, by flood risk

Map of every postcode in the RM12 4 sector, by flood risk Of the 256 postcodes in the RM12 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst and 254 are not on the Environment Agency's at-risk list. Places named: St Andrew's, Hylands & Harrow Lodge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A124 RM12 4AA: not on the flood risk listRM12 4AB: not on the flood risk listRM12 4AD: not on the flood risk listRM12 4AE: not on the flood risk listRM12 4AF: not on the flood risk listRM12 4AG: not on the flood risk listRM12 4AH: not on the flood risk listRM12 4AJ: not on the flood risk listRM12 4AL: not on the flood risk listRM12 4AN: not on the flood risk listRM12 4AP: not on the flood risk listRM12 4AQ: not on the flood risk listRM12 4AR: not on the flood risk listRM12 4AS: not on the flood risk listRM12 4AT: not on the flood risk listRM12 4AU: not on the flood risk listRM12 4AW: not on the flood risk listRM12 4AX: not on the flood risk listRM12 4AY: not on the flood risk listRM12 4AZ: not on the flood risk listRM12 4BA: not on the flood risk listRM12 4BB: not on the flood risk listRM12 4BD: not on the flood risk listRM12 4BE: not on the flood risk listRM12 4BG: not on the flood risk listRM12 4BH: not on the flood risk listRM12 4BJ: not on the flood risk listRM12 4BL: not on the flood risk listRM12 4BN: not on the flood risk listRM12 4BP: not on the flood risk listRM12 4BQ: not on the flood risk listRM12 4BS: not on the flood risk listRM12 4BT: not on the flood risk listRM12 4BU: not on the flood risk listRM12 4BW: not on the flood risk listRM12 4BY: not on the flood risk listRM12 4BZ: not on the flood risk listRM12 4DA: not on the flood risk listRM12 4DB: not on the flood risk listRM12 4DN: not on the flood risk listRM12 4DP: not on the flood risk listRM12 4DQ: not on the flood risk listRM12 4DR: not on the flood risk listRM12 4DS: not on the flood risk listRM12 4DT: not on the flood risk listRM12 4DW: not on the flood risk listRM12 4DX: not on the flood risk listRM12 4DY: not on the flood risk listRM12 4DZ: not on the flood risk listRM12 4EA: not on the flood risk listRM12 4EB: not on the flood risk listRM12 4ED: not on the flood risk listRM12 4EE: not on the flood risk listRM12 4EF: not on the flood risk listRM12 4EG: not on the flood risk listRM12 4EH: not on the flood risk listRM12 4EN: not on the flood risk listRM12 4ES: not on the flood risk listRM12 4EU: not on the flood risk listRM12 4EW: not on the flood risk listRM12 4EX: not on the flood risk listRM12 4EY: not on the flood risk listRM12 4EZ: not on the flood risk listRM12 4FA: not on the flood risk listRM12 4FH: not on the flood risk listRM12 4FJ: not on the flood risk listRM12 4FS: not on the flood risk listRM12 4FT: not on the flood risk listRM12 4FU: not on the flood risk listRM12 4FY: not on the flood risk listRM12 4GE: not on the flood risk listRM12 4GF: not on the flood risk listRM12 4GH: not on the flood risk listRM12 4GJ: not on the flood risk listRM12 4GL: not on the flood risk listRM12 4GN: not on the flood risk listRM12 4HA: not on the flood risk listRM12 4HB: not on the flood risk listRM12 4HD: not on the flood risk listRM12 4HE: not on the flood risk listRM12 4HF: not on the flood risk listRM12 4HG: not on the flood risk listRM12 4HH: not on the flood risk listRM12 4HJ: not on the flood risk listRM12 4HL: not on the flood risk listRM12 4HN: not on the flood risk listRM12 4HQ: not on the flood risk listRM12 4HS: not on the flood risk listRM12 4HW: not on the flood risk listRM12 4HX: not on the flood risk listRM12 4HY: not on the flood risk listRM12 4HZ: not on the flood risk listRM12 4JA: not on the flood risk listRM12 4JB: not on the flood risk listRM12 4JD: not on the flood risk listRM12 4JE: not on the flood risk listRM12 4JF: not on the flood risk listRM12 4JG: not on the flood risk listRM12 4JH: not on the flood risk listRM12 4JJ: not on the flood risk listRM12 4JL: not on the flood risk listRM12 4JN: not on the flood risk listRM12 4JP: not on the flood risk listRM12 4JQ: not on the flood risk listRM12 4JR: not on the flood risk listRM12 4JS: not on the flood risk listRM12 4JU: not on the flood risk listRM12 4JW: not on the flood risk listRM12 4JX: not on the flood risk listRM12 4JY: not on the flood risk listRM12 4JZ: not on the flood risk listRM12 4LB: not on the flood risk listRM12 4LD: not on the flood risk listRM12 4LE: not on the flood risk listRM12 4LF: not on the flood risk listRM12 4LG: not on the flood risk listRM12 4LH: not on the flood risk listRM12 4LJ: not on the flood risk listRM12 4LL: not on the flood risk listRM12 4LN: not on the flood risk listRM12 4LP: not on the flood risk listRM12 4LQ: not on the flood risk listRM12 4LR: not on the flood risk listRM12 4LS: not on the flood risk listRM12 4LT: not on the flood risk listRM12 4LU: not on the flood risk listRM12 4LW: not on the flood risk listRM12 4LX: not on the flood risk listRM12 4LY: not on the flood risk listRM12 4LZ: not on the flood risk listRM12 4NA: not on the flood risk listRM12 4ND: not on the flood risk listRM12 4NE: not on the flood risk listRM12 4NF: not on the flood risk listRM12 4NG: not on the flood risk listRM12 4NH: not on the flood risk listRM12 4NJ: not on the flood risk listRM12 4NL: not on the flood risk listRM12 4NN: not on the flood risk listRM12 4NP: not on the flood risk listRM12 4NQ: not on the flood risk listRM12 4NR: not on the flood risk listRM12 4NS: not on the flood risk listRM12 4NT: not on the flood risk listRM12 4NU: not on the flood risk listRM12 4NW: not on the flood risk listRM12 4NX: not on the flood risk listRM12 4PA: not on the flood risk listRM12 4PB: not on the flood risk listRM12 4PE: not on the flood risk listRM12 4PF: not on the flood risk listRM12 4PG: not on the flood risk listRM12 4PL: not on the flood risk listRM12 4PN: not on the flood risk listRM12 4PP: not on the flood risk listRM12 4PQ: not on the flood risk listRM12 4PR: not on the flood risk listRM12 4PT: not on the flood risk listRM12 4PU: not on the flood risk listRM12 4PW: not on the flood risk listRM12 4PX: not on the flood risk listRM12 4PY: not on the flood risk listRM12 4PZ: not on the flood risk listRM12 4QD: not on the flood risk listRM12 4QG: not on the flood risk listRM12 4QH: not on the flood risk listRM12 4QJ: not on the flood risk listRM12 4QL: not on the flood risk listRM12 4QN: not on the flood risk listRM12 4QP: not on the flood risk listRM12 4QQ: not on the flood risk listRM12 4QR: not on the flood risk listRM12 4QS: not on the flood risk listRM12 4QT: not on the flood risk listRM12 4QU: not on the flood risk listRM12 4QW: not on the flood risk listRM12 4QX: not on the flood risk listRM12 4QY: not on the flood risk listRM12 4QZ: not on the flood risk listRM12 4RA: not on the flood risk listRM12 4RB: not on the flood risk listRM12 4RH: not on the flood risk listRM12 4RN: not on the flood risk listRM12 4RS: not on the flood risk listRM12 4RW: not on the flood risk listRM12 4RX: not on the flood risk listRM12 4RY: not on the flood risk listRM12 4RZ: not on the flood risk listRM12 4SD: not on the flood risk listRM12 4SE: not on the flood risk listRM12 4SF: not on the flood risk listRM12 4SG: not on the flood risk listRM12 4SH: not on the flood risk listRM12 4SL: not on the flood risk listRM12 4SN: not on the flood risk listRM12 4SP: not on the flood risk listRM12 4SQ: not on the flood risk listRM12 4SW: not on the flood risk listRM12 4SY: not on the flood risk listRM12 4SZ: not on the flood risk listRM12 4TA: not on the flood risk listRM12 4TE: not on the flood risk listRM12 4TF: not on the flood risk listRM12 4TG: not on the flood risk listRM12 4TL: not on the flood risk listRM12 4TN: not on the flood risk listRM12 4TP: not on the flood risk listRM12 4TQ: not on the flood risk listRM12 4TR: not on the flood risk listRM12 4TW: not on the flood risk listRM12 4TX: not on the flood risk listRM12 4TY: not on the flood risk listRM12 4TZ: not on the flood risk listRM12 4UH: not on the flood risk listRM12 4UN: not on the flood risk listRM12 4UP: not on the flood risk listRM12 4UX: not on the flood risk listRM12 4WW: not on the flood risk listRM12 4XA: not on the flood risk listRM12 4XB: not on the flood risk listRM12 4XD: not on the flood risk listRM12 4XE: not on the flood risk listRM12 4XF: not on the flood risk listRM12 4XG: not on the flood risk listRM12 4XH: not on the flood risk listRM12 4XJ: not on the flood risk listRM12 4XL: not on the flood risk listRM12 4XN: not on the flood risk listRM12 4XP: not on the flood risk listRM12 4XQ: not on the flood risk listRM12 4XR: not on the flood risk listRM12 4XS: not on the flood risk listRM12 4XT: not on the flood risk listRM12 4XU: not on the flood risk listRM12 4XW: not on the flood risk listRM12 4XY: not on the flood risk listRM12 4YA: not on the flood risk listRM12 4YB: not on the flood risk listRM12 4YD: not on the flood risk listRM12 4YE: not on the flood risk listRM12 4YF: not on the flood risk listRM12 4YG: not on the flood risk listRM12 4YH: not on the flood risk listRM12 4YJ: not on the flood risk listRM12 4YL: not on the flood risk listRM12 4YN: not on the flood risk listRM12 4YQ: not on the flood risk listRM12 4YR: not on the flood risk listRM12 4YS: not on the flood risk listRM12 4YW: not on the flood risk listRM12 4YX: not on the flood risk listRM12 4EQ: medium flood risk at worstRM12 4DU: high flood risk St Andrew'sHylands & Harrow Lodge Map of every postcode in the RM12 4 sector, by flood risk Of the 256 postcodes in the RM12 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst and 254 are not on the Environment Agency's at-risk list. Places named: St Andrew's, Hylands & Harrow Lodge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A124 St Andrew'sHylands & Harrow Lodge
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 254

Of the 256 postcodes in the RM12 4 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst and 254 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. 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; 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.

RM12 4DU2 at high risk

What do homes sell for in RM12 4?

Homes in RM12 4 sold for a typical £482,500 in the 12 months to August 2026, across 173 sales, up 1.6% on the 12 months before, HM Land Registry's figures show.

£482,500 typical price, the 12 months to August 2026
£475,000 12 months to August 2025
▲ up 1.6% on the 12 months before
  • Detached £537,500 8 sales
  • Semi-detached £530,000 77 sales
  • Terraced £444,000 78 sales
  • Flat or maisonette £243,500 10 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 RM12 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 RM12 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.

RM12 4AARM12 4ABRM12 4ADRM12 4AERM12 4AFRM12 4AGRM12 4AHRM12 4AJRM12 4ALRM12 4ANRM12 4APRM12 4AQRM12 4ARRM12 4ASRM12 4ATRM12 4AURM12 4AWRM12 4AXRM12 4AYRM12 4AZRM12 4BARM12 4BBRM12 4BDRM12 4BERM12 4BGRM12 4BHRM12 4BJRM12 4BLRM12 4BNRM12 4BPRM12 4BQRM12 4BSRM12 4BTRM12 4BURM12 4BWRM12 4BYRM12 4BZRM12 4DARM12 4DBRM12 4DNRM12 4DPRM12 4DQRM12 4DRRM12 4DSRM12 4DTRM12 4DURM12 4DWRM12 4DXRM12 4DYRM12 4DZRM12 4EARM12 4EBRM12 4EDRM12 4EERM12 4EFRM12 4EGRM12 4EHRM12 4ENRM12 4EQRM12 4ESRM12 4EURM12 4EWRM12 4EXRM12 4EYRM12 4EZRM12 4FARM12 4FHRM12 4FJRM12 4FSRM12 4FTRM12 4FURM12 4FYRM12 4GERM12 4GFRM12 4GHRM12 4GJRM12 4GLRM12 4GNRM12 4HARM12 4HBRM12 4HDRM12 4HERM12 4HFRM12 4HGRM12 4HHRM12 4HJRM12 4HLRM12 4HNRM12 4HQRM12 4HSRM12 4HWRM12 4HXRM12 4HYRM12 4HZRM12 4JARM12 4JBRM12 4JDRM12 4JERM12 4JFRM12 4JGRM12 4JHRM12 4JJRM12 4JLRM12 4JNRM12 4JPRM12 4JQRM12 4JRRM12 4JSRM12 4JURM12 4JWRM12 4JXRM12 4JYRM12 4JZRM12 4LBRM12 4LDRM12 4LERM12 4LFRM12 4LGRM12 4LHRM12 4LJRM12 4LLRM12 4LNRM12 4LPRM12 4LQRM12 4LRRM12 4LSRM12 4LTRM12 4LURM12 4LWRM12 4LXRM12 4LYRM12 4LZRM12 4NARM12 4NDRM12 4NERM12 4NFRM12 4NGRM12 4NHRM12 4NJRM12 4NLRM12 4NNRM12 4NPRM12 4NQRM12 4NRRM12 4NSRM12 4NTRM12 4NURM12 4NWRM12 4NXRM12 4PARM12 4PBRM12 4PERM12 4PFRM12 4PGRM12 4PLRM12 4PNRM12 4PPRM12 4PQRM12 4PRRM12 4PTRM12 4PURM12 4PWRM12 4PXRM12 4PYRM12 4PZRM12 4QDRM12 4QGRM12 4QHRM12 4QJRM12 4QLRM12 4QNRM12 4QPRM12 4QQRM12 4QRRM12 4QSRM12 4QTRM12 4QURM12 4QWRM12 4QXRM12 4QYRM12 4QZRM12 4RARM12 4RBRM12 4RHRM12 4RNRM12 4RSRM12 4RWRM12 4RXRM12 4RYRM12 4RZRM12 4SARM12 4SDRM12 4SERM12 4SFRM12 4SGRM12 4SHRM12 4SLRM12 4SNRM12 4SPRM12 4SQRM12 4SWRM12 4SYRM12 4SZRM12 4TARM12 4TERM12 4TFRM12 4TGRM12 4TLRM12 4TNRM12 4TPRM12 4TQRM12 4TRRM12 4TWRM12 4TXRM12 4TYRM12 4TZRM12 4UHRM12 4ULRM12 4UNRM12 4UPRM12 4UWRM12 4UXRM12 4WWRM12 4XARM12 4XBRM12 4XDRM12 4XERM12 4XFRM12 4XGRM12 4XHRM12 4XJRM12 4XLRM12 4XNRM12 4XPRM12 4XQRM12 4XRRM12 4XSRM12 4XTRM12 4XURM12 4XWRM12 4XYRM12 4YARM12 4YBRM12 4YDRM12 4YERM12 4YFRM12 4YGRM12 4YHRM12 4YJRM12 4YLRM12 4YNRM12 4YQRM12 4YRRM12 4YSRM12 4YWRM12 4YX

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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