SM5 4 postcode sector in the SM5 district

SM5 4 is a sector of the SM5 district: every postcode that starts SM5 4. It has 123 postcodes in use, 2 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 SM5 4 sector, by flood risk

Map of every postcode in the SM5 4 sector, by flood risk Of the 123 postcodes in the SM5 4 sector that ONS places, 123 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Carshalton South & Clockhouse, Wallington South. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A2022 SM5 4AA: not on the flood risk listSM5 4AB: not on the flood risk listSM5 4AD: not on the flood risk listSM5 4AE: not on the flood risk listSM5 4AF: not on the flood risk listSM5 4AG: not on the flood risk listSM5 4AL: not on the flood risk listSM5 4AN: not on the flood risk listSM5 4AP: not on the flood risk listSM5 4AQ: not on the flood risk listSM5 4AS: not on the flood risk listSM5 4AT: not on the flood risk listSM5 4AU: not on the flood risk listSM5 4AW: not on the flood risk listSM5 4AY: not on the flood risk listSM5 4AZ: not on the flood risk listSM5 4BB: not on the flood risk listSM5 4BD: not on the flood risk listSM5 4BE: not on the flood risk listSM5 4BF: not on the flood risk listSM5 4BG: not on the flood risk listSM5 4BJ: not on the flood risk listSM5 4BP: not on the flood risk listSM5 4BX: not on the flood risk listSM5 4BY: not on the flood risk listSM5 4DD: not on the flood risk listSM5 4DH: not on the flood risk listSM5 4DP: not on the flood risk listSM5 4DQ: not on the flood risk listSM5 4DT: not on the flood risk listSM5 4DW: not on the flood risk listSM5 4EA: not on the flood risk listSM5 4EF: not on the flood risk listSM5 4EG: not on the flood risk listSM5 4EH: not on the flood risk listSM5 4EJ: not on the flood risk listSM5 4EL: not on the flood risk listSM5 4EN: not on the flood risk listSM5 4EQ: not on the flood risk listSM5 4ES: not on the flood risk listSM5 4EW: not on the flood risk listSM5 4HA: not on the flood risk listSM5 4HB: not on the flood risk listSM5 4HD: not on the flood risk listSM5 4HE: not on the flood risk listSM5 4HL: not on the flood risk listSM5 4HN: not on the flood risk listSM5 4HP: not on the flood risk listSM5 4HQ: not on the flood risk listSM5 4HR: not on the flood risk listSM5 4HS: not on the flood risk listSM5 4HT: not on the flood risk listSM5 4HW: not on the flood risk listSM5 4HZ: not on the flood risk listSM5 4JA: not on the flood risk listSM5 4JF: not on the flood risk listSM5 4JH: not on the flood risk listSM5 4JJ: not on the flood risk listSM5 4JL: not on the flood risk listSM5 4JN: not on the flood risk listSM5 4JS: not on the flood risk listSM5 4JT: not on the flood risk listSM5 4JU: not on the flood risk listSM5 4JW: not on the flood risk listSM5 4JX: not on the flood risk listSM5 4LA: not on the flood risk listSM5 4LB: not on the flood risk listSM5 4LD: not on the flood risk listSM5 4LE: not on the flood risk listSM5 4LF: not on the flood risk listSM5 4LG: not on the flood risk listSM5 4LH: not on the flood risk listSM5 4LJ: not on the flood risk listSM5 4LL: not on the flood risk listSM5 4LN: not on the flood risk listSM5 4LP: not on the flood risk listSM5 4LQ: not on the flood risk listSM5 4LR: not on the flood risk listSM5 4LS: not on the flood risk listSM5 4LT: not on the flood risk listSM5 4LU: not on the flood risk listSM5 4LW: not on the flood risk listSM5 4LX: not on the flood risk listSM5 4LY: not on the flood risk listSM5 4LZ: not on the flood risk listSM5 4NA: not on the flood risk listSM5 4NB: not on the flood risk listSM5 4NG: not on the flood risk listSM5 4NH: not on the flood risk listSM5 4NJ: not on the flood risk listSM5 4NL: not on the flood risk listSM5 4NP: not on the flood risk listSM5 4NQ: not on the flood risk listSM5 4NR: not on the flood risk listSM5 4NS: not on the flood risk listSM5 4NX: not on the flood risk listSM5 4NY: not on the flood risk listSM5 4NZ: not on the flood risk listSM5 4PA: not on the flood risk listSM5 4PB: not on the flood risk listSM5 4PD: not on the flood risk listSM5 4PE: not on the flood risk listSM5 4PF: not on the flood risk listSM5 4PG: not on the flood risk listSM5 4PH: not on the flood risk listSM5 4PL: not on the flood risk listSM5 4PN: not on the flood risk listSM5 4PP: not on the flood risk listSM5 4PQ: not on the flood risk listSM5 4PR: not on the flood risk listSM5 4PS: not on the flood risk listSM5 4PT: not on the flood risk listSM5 4PU: not on the flood risk listSM5 4PW: not on the flood risk listSM5 4PX: not on the flood risk listSM5 4PY: not on the flood risk listSM5 4QB: not on the flood risk listSM5 4QE: not on the flood risk listSM5 4QH: not on the flood risk listSM5 4QJ: not on the flood risk listSM5 4QL: not on the flood risk listSM5 4QQ: not on the flood risk list Carshalton South & ClockhouseWallington South Map of every postcode in the SM5 4 sector, by flood risk Of the 123 postcodes in the SM5 4 sector that ONS places, 123 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Carshalton South & Clockhouse, Wallington South. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Carshalton South & ClockhouseWallington South
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 123

Of the 123 postcodes in the SM5 4 sector that ONS places, 123 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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

SM5 4AH

What do homes sell for in SM5 4?

Homes in SM5 4 sold for a typical £630,000 in the 12 months to August 2026, across 47 sales, up 3.3% on the 12 months before, HM Land Registry's figures show.

£630,000 typical price, the 12 months to August 2026
£610,000 12 months to August 2025
▲ up 3.3% on the 12 months before
  • Detached £1,125,000 7 sales
  • Semi-detached £735,000 17 sales
  • Terraced £502,000 14 sales
  • Flat or maisonette £277,000 9 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 SM5 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 SM5 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.

SM5 4AASM5 4ABSM5 4ADSM5 4AESM5 4AFSM5 4AGSM5 4AHSM5 4ALSM5 4ANSM5 4APSM5 4AQSM5 4ASSM5 4ATSM5 4AUSM5 4AWSM5 4AYSM5 4AZSM5 4BBSM5 4BDSM5 4BESM5 4BFSM5 4BGSM5 4BJSM5 4BPSM5 4BXSM5 4BYSM5 4DDSM5 4DHSM5 4DPSM5 4DQSM5 4DTSM5 4DWSM5 4EASM5 4EFSM5 4EGSM5 4EHSM5 4EJSM5 4ELSM5 4ENSM5 4EQSM5 4ESSM5 4EWSM5 4HASM5 4HBSM5 4HDSM5 4HESM5 4HLSM5 4HNSM5 4HPSM5 4HQSM5 4HRSM5 4HSSM5 4HTSM5 4HWSM5 4HZSM5 4JASM5 4JFSM5 4JHSM5 4JJSM5 4JLSM5 4JNSM5 4JSSM5 4JTSM5 4JUSM5 4JWSM5 4JXSM5 4LASM5 4LBSM5 4LDSM5 4LESM5 4LFSM5 4LGSM5 4LHSM5 4LJSM5 4LLSM5 4LNSM5 4LPSM5 4LQSM5 4LRSM5 4LSSM5 4LTSM5 4LUSM5 4LWSM5 4LXSM5 4LYSM5 4LZSM5 4NASM5 4NBSM5 4NGSM5 4NHSM5 4NJSM5 4NLSM5 4NPSM5 4NQSM5 4NRSM5 4NSSM5 4NXSM5 4NYSM5 4NZSM5 4PASM5 4PBSM5 4PDSM5 4PESM5 4PFSM5 4PGSM5 4PHSM5 4PLSM5 4PNSM5 4PPSM5 4PQSM5 4PRSM5 4PSSM5 4PTSM5 4PUSM5 4PWSM5 4PXSM5 4PYSM5 4QBSM5 4QESM5 4QHSM5 4QJSM5 4QLSM5 4QQ

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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