SM4 5 postcode sector in the SM4 district

SM4 5 is a sector of the SM4 district: every postcode that starts SM4 5. It has 165 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 SM4 5 sector, by gigabit broadband

Map of every postcode in the SM4 5 sector, by gigabit broadband Of the 165 postcodes in the SM4 5 sector that ONS places, 2 have no home or business that can get gigabit, 20 have some that can, 134 can all get it and 9 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: St Helier, Merton Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A297A24 SM4 5BW: no Ofcom figureSM4 5JA: no Ofcom figureSM4 5PQ: no Ofcom figureSM4 5QU: no Ofcom figureSM4 5RU: no Ofcom figureSM4 5ZP: no Ofcom figureSM4 5AA: gigabit for allSM4 5AB: gigabit for allSM4 5AD: gigabit for allSM4 5AE: gigabit for allSM4 5AF: gigabit for allSM4 5AH: gigabit for allSM4 5AJ: gigabit for allSM4 5AL: gigabit for allSM4 5AP: gigabit for allSM4 5AQ: gigabit for allSM4 5AR: gigabit for allSM4 5AS: gigabit for allSM4 5AT: gigabit for allSM4 5AW: gigabit for allSM4 5AX: gigabit for allSM4 5BA: gigabit for allSM4 5BF: gigabit for allSM4 5BG: gigabit for allSM4 5BQ: gigabit for allSM4 5BU: gigabit for allSM4 5DA: gigabit for allSM4 5DB: gigabit for allSM4 5DD: gigabit for allSM4 5DE: gigabit for allSM4 5DF: gigabit for allSM4 5DG: gigabit for allSM4 5DH: gigabit for allSM4 5DJ: gigabit for allSM4 5DN: gigabit for allSM4 5DP: gigabit for allSM4 5DQ: gigabit for allSM4 5DS: gigabit for allSM4 5DT: gigabit for allSM4 5DU: gigabit for allSM4 5DW: gigabit for allSM4 5DX: gigabit for allSM4 5HE: gigabit for allSM4 5HG: gigabit for allSM4 5HN: gigabit for allSM4 5HQ: gigabit for allSM4 5HT: gigabit for allSM4 5HX: gigabit for allSM4 5JF: gigabit for allSM4 5JG: gigabit for allSM4 5JH: gigabit for allSM4 5JJ: gigabit for allSM4 5JL: gigabit for allSM4 5JN: gigabit for allSM4 5JP: gigabit for allSM4 5JW: gigabit for allSM4 5JX: gigabit for allSM4 5JY: gigabit for allSM4 5LA: gigabit for allSM4 5LB: gigabit for allSM4 5LF: gigabit for allSM4 5LH: gigabit for allSM4 5LJ: gigabit for allSM4 5LN: gigabit for allSM4 5LP: gigabit for allSM4 5LQ: gigabit for allSM4 5LR: gigabit for allSM4 5LT: gigabit for allSM4 5LU: gigabit for allSM4 5LW: gigabit for allSM4 5LX: gigabit for allSM4 5NA: gigabit for allSM4 5NB: gigabit for allSM4 5ND: gigabit for allSM4 5NE: gigabit for allSM4 5NF: gigabit for allSM4 5NG: gigabit for allSM4 5NH: gigabit for allSM4 5NJ: gigabit for allSM4 5NL: gigabit for allSM4 5NN: gigabit for allSM4 5NP: gigabit for allSM4 5NQ: gigabit for allSM4 5NS: gigabit for allSM4 5NT: gigabit for allSM4 5NW: gigabit for allSM4 5NX: gigabit for allSM4 5NY: gigabit for allSM4 5NZ: gigabit for allSM4 5PA: gigabit for allSM4 5PB: gigabit for allSM4 5PE: gigabit for allSM4 5PF: gigabit for allSM4 5PG: gigabit for allSM4 5PH: gigabit for allSM4 5PJ: gigabit for allSM4 5PN: gigabit for allSM4 5PP: gigabit for allSM4 5PR: gigabit for allSM4 5PU: gigabit for allSM4 5PX: gigabit for allSM4 5PY: gigabit for allSM4 5PZ: gigabit for allSM4 5QA: gigabit for allSM4 5QD: gigabit for allSM4 5QH: gigabit for allSM4 5QL: gigabit for allSM4 5QN: gigabit for allSM4 5QP: gigabit for allSM4 5QQ: gigabit for allSM4 5QR: gigabit for allSM4 5QS: gigabit for allSM4 5QW: gigabit for allSM4 5QX: gigabit for allSM4 5RA: gigabit for allSM4 5RB: gigabit for allSM4 5RD: gigabit for allSM4 5RE: gigabit for allSM4 5RF: gigabit for allSM4 5RG: gigabit for allSM4 5RJ: gigabit for allSM4 5RL: gigabit for allSM4 5RN: gigabit for allSM4 5RQ: gigabit for allSM4 5RR: gigabit for allSM4 5RS: gigabit for allSM4 5RT: gigabit for allSM4 5RW: gigabit for allSM4 5RX: gigabit for allSM4 5RY: gigabit for allSM4 5RZ: gigabit for allSM4 5SA: gigabit for allSM4 5SB: gigabit for allSM4 5SD: gigabit for allSM4 5SG: gigabit for allSM4 5SH: gigabit for allSM4 5SJ: gigabit for allSM4 5SL: gigabit for allSM4 5SP: gigabit for allSM4 5SQ: gigabit for allSM4 5AN: some gigabitSM4 5AZ: some gigabitSM4 5BE: some gigabitSM4 5BL: some gigabitSM4 5BT: some gigabitSM4 5BY: some gigabitSM4 5HJ: some gigabitSM4 5HP: some gigabitSM4 5HW: some gigabitSM4 5JD: some gigabitSM4 5JQ: some gigabitSM4 5JS: some gigabitSM4 5LY: some gigabitSM4 5NR: some gigabitSM4 5PS: some gigabitSM4 5PT: some gigabitSM4 5QB: some gigabitSM4 5QT: some gigabitSM4 5RP: some gigabitSM4 5SR: some gigabitSM4 5AG: no gigabitSM4 5HH: no gigabit St HelierMerton Park Map of every postcode in the SM4 5 sector, by gigabit broadband Of the 165 postcodes in the SM4 5 sector that ONS places, 2 have no home or business that can get gigabit, 20 have some that can, 134 can all get it and 9 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: St Helier, Merton Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. St HelierMerton Park
  • No home or business can get gigabit: 2
  • Some can get gigabit: 20
  • Every home and business can get gigabit: 134
  • Ofcom gives no figure: 9

Of the 165 postcodes in the SM4 5 sector that ONS places, 2 have no home or business that can get gigabit, 20 have some that can, 134 can all get it and 9 have no Ofcom figure.

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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

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.

What do homes sell for in SM4 5?

Homes in SM4 5 sold for a typical £440,000 in the 12 months to September 2026, across 57 sales, HM Land Registry's figures show. The 12 months before gave £490,000 from 84 sales: not a change larger than chance would explain, given which homes happened to sell.

£440,000 typical price, the 12 months to September 2026
£490,000 12 months to September 2025
  • Detached 1 sale, too few to price
  • Semi-detached £550,000 7 sales
  • Terraced £565,000 25 sales
  • Flat or maisonette £305,000 24 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 SM4 5. 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 October 2026.

Postcodes in SM4 5

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.

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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