M25 3 postcode sector in the M25 district

M25 3 is a sector of the M25 district: every postcode that starts M25 3. It has 110 postcodes in use, 6 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 M25 3 sector, by gigabit broadband

Map of every postcode in the M25 3 sector, by gigabit broadband Of the 110 postcodes in the M25 3 sector that ONS places, 3 have no home or business that can get gigabit, 9 have some that can, 94 can all get it and 4 have no Ofcom figure. Places named: St. Mary's, Holyrood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M60 M25 3AA: gigabit for allM25 3AB: gigabit for allM25 3AD: gigabit for allM25 3AE: gigabit for allM25 3AF: gigabit for allM25 3AG: gigabit for allM25 3AH: gigabit for allM25 3AJ: gigabit for allM25 3AQ: gigabit for allM25 3AR: gigabit for allM25 3AT: gigabit for allM25 3AU: gigabit for allM25 3AW: gigabit for allM25 3AX: gigabit for allM25 3AY: gigabit for allM25 3AZ: gigabit for allM25 3BB: gigabit for allM25 3BE: gigabit for allM25 3BH: gigabit for allM25 3BR: gigabit for allM25 3BS: gigabit for allM25 3BT: gigabit for allM25 3BU: gigabit for allM25 3BW: gigabit for allM25 3BX: gigabit for allM25 3BY: gigabit for allM25 3BZ: gigabit for allM25 3DA: gigabit for allM25 3DB: gigabit for allM25 3DD: gigabit for allM25 3DE: gigabit for allM25 3DF: gigabit for allM25 3DG: gigabit for allM25 3DJ: gigabit for allM25 3DL: gigabit for allM25 3DN: gigabit for allM25 3DP: gigabit for allM25 3DQ: gigabit for allM25 3DR: gigabit for allM25 3DS: gigabit for allM25 3DU: gigabit for allM25 3DW: gigabit for allM25 3DX: gigabit for allM25 3DY: gigabit for allM25 3DZ: gigabit for allM25 3EA: gigabit for allM25 3EB: gigabit for allM25 3EE: gigabit for allM25 3EF: gigabit for allM25 3EJ: gigabit for allM25 3EL: gigabit for allM25 3EN: gigabit for allM25 3EP: gigabit for allM25 3EQ: gigabit for allM25 3ER: gigabit for allM25 3ES: gigabit for allM25 3ET: gigabit for allM25 3EU: gigabit for allM25 3EW: gigabit for allM25 3FB: gigabit for allM25 3FD: gigabit for allM25 3FF: gigabit for allM25 3FG: gigabit for allM25 3FH: gigabit for allM25 3FW: gigabit for allM25 3HA: gigabit for allM25 3HD: gigabit for allM25 3HE: gigabit for allM25 3HG: gigabit for allM25 3HH: gigabit for allM25 3HJ: gigabit for allM25 3HL: gigabit for allM25 3HN: gigabit for allM25 3HR: gigabit for allM25 3HS: gigabit for allM25 3HT: gigabit for allM25 3HU: gigabit for allM25 3HW: gigabit for allM25 3HX: gigabit for allM25 3HY: gigabit for allM25 3HZ: gigabit for allM25 3JA: gigabit for allM25 3JD: gigabit for allM25 3JE: gigabit for allM25 3JF: gigabit for allM25 3JG: gigabit for allM25 3JH: gigabit for allM25 3JJ: gigabit for allM25 3JL: gigabit for allM25 3JN: gigabit for allM25 3JP: gigabit for allM25 3JR: gigabit for allM25 3JS: gigabit for allM25 3JW: gigabit for allM25 3AN: some gigabitM25 3AP: some gigabitM25 3AS: some gigabitM25 3BD: some gigabitM25 3BN: some gigabitM25 3DT: some gigabitM25 3HB: some gigabitM25 3HQ: some gigabitM25 3TG: some gigabitM25 3BL: no gigabitM25 3JT: no gigabitM25 3JX: no gigabit St. Mary'sHolyrood Map of every postcode in the M25 3 sector, by gigabit broadband Of the 110 postcodes in the M25 3 sector that ONS places, 3 have no home or business that can get gigabit, 9 have some that can, 94 can all get it and 4 have no Ofcom figure. Places named: St. Mary's, Holyrood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M60 St. Mary'sHolyrood
  • No home or business can get gigabit: 3
  • Some can get gigabit: 9
  • Every home and business can get gigabit: 94
  • Ofcom gives no figure: 4

Of the 110 postcodes in the M25 3 sector that ONS places, 3 have no home or business that can get gigabit, 9 have some that can, 94 can all get it and 4 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

What do homes sell for in M25 3?

Homes in M25 3 sold for a typical £322,100 in the 12 months to September 2026, across 45 sales, HM Land Registry's figures show. The 12 months before gave £323,000 from 61 sales: not a change larger than chance would explain, given which homes happened to sell.

£322,100 typical price, the 12 months to September 2026
£323,000 12 months to September 2025
  • Detached £630,000 5 sales
  • Semi-detached £332,000 17 sales
  • Terraced £300,000 17 sales
  • Flat or maisonette £192,000 6 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 M25 3. 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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