SO18 6 postcode sector in the SO18 district

SO18 6 is a sector of the SO18 district: every postcode that starts SO18 6. It has 75 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 SO18 6 sector, by gigabit broadband

Map of every postcode in the SO18 6 sector, by gigabit broadband Of the 75 postcodes in the SO18 6 sector that ONS places, 1 have no home or business that can get gigabit, 2 have some that can and 72 can all get it. Places named: Harefield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3024 SO18 6AA: gigabit for allSO18 6AB: gigabit for allSO18 6AD: gigabit for allSO18 6AE: gigabit for allSO18 6AF: gigabit for allSO18 6AG: gigabit for allSO18 6AH: gigabit for allSO18 6AJ: gigabit for allSO18 6AL: gigabit for allSO18 6AN: gigabit for allSO18 6AP: gigabit for allSO18 6AQ: gigabit for allSO18 6AR: gigabit for allSO18 6AS: gigabit for allSO18 6AT: gigabit for allSO18 6AU: gigabit for allSO18 6AW: gigabit for allSO18 6AX: gigabit for allSO18 6AY: gigabit for allSO18 6AZ: gigabit for allSO18 6BA: gigabit for allSO18 6BB: gigabit for allSO18 6BD: gigabit for allSO18 6BE: gigabit for allSO18 6BF: gigabit for allSO18 6BG: gigabit for allSO18 6BH: gigabit for allSO18 6BJ: gigabit for allSO18 6BL: gigabit for allSO18 6BN: gigabit for allSO18 6BP: gigabit for allSO18 6BT: gigabit for allSO18 6BW: gigabit for allSO18 6BX: gigabit for allSO18 6LW: gigabit for allSO18 6LX: gigabit for allSO18 6LY: gigabit for allSO18 6NJ: gigabit for allSO18 6NL: gigabit for allSO18 6NN: gigabit for allSO18 6NP: gigabit for allSO18 6NQ: gigabit for allSO18 6NR: gigabit for allSO18 6NS: gigabit for allSO18 6NT: gigabit for allSO18 6NU: gigabit for allSO18 6NW: gigabit for allSO18 6NX: gigabit for allSO18 6NY: gigabit for allSO18 6PA: gigabit for allSO18 6PH: gigabit for allSO18 6PJ: gigabit for allSO18 6PL: gigabit for allSO18 6PP: gigabit for allSO18 6QN: gigabit for allSO18 6RU: gigabit for allSO18 6RW: gigabit for allSO18 6RX: gigabit for allSO18 6SG: gigabit for allSO18 6SL: gigabit for allSO18 6SN: gigabit for allSO18 6SQ: gigabit for allSO18 6ST: gigabit for allSO18 6SX: gigabit for allSO18 6TA: gigabit for allSO18 6TE: gigabit for allSO18 6TF: gigabit for allSO18 6TJ: gigabit for allSO18 6TL: gigabit for allSO18 6TN: gigabit for allSO18 6TW: gigabit for allSO18 6TX: gigabit for allSO18 6PN: some gigabitSO18 6TG: some gigabitSO18 6BR: no gigabit Harefield Map of every postcode in the SO18 6 sector, by gigabit broadband Of the 75 postcodes in the SO18 6 sector that ONS places, 1 have no home or business that can get gigabit, 2 have some that can and 72 can all get it. Places named: Harefield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Harefield
  • No home or business can get gigabit: 1
  • Some can get gigabit: 2
  • Every home and business can get gigabit: 72
  • Ofcom gives no figure: 0

Of the 75 postcodes in the SO18 6 sector that ONS places, 1 have no home or business that can get gigabit, 2 have some that can and 72 can all get it.

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. 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

What do homes sell for in SO18 6?

Homes in SO18 6 sold for a typical £265,000 in the 12 months to September 2026, across 36 sales, HM Land Registry's figures show. The 12 months before gave £245,000 from 52 sales: not a change larger than chance would explain, given which homes happened to sell.

£265,000 typical price, the 12 months to September 2026
£245,000 12 months to September 2025
  • Detached £438,750 10 sales
  • Semi-detached £325,000 8 sales
  • Flat or maisonette £136,000 18 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 SO18 6. 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.

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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