W1U 4 postcode sector in the W1U district

W1U 4 is a sector of the W1U district: every postcode that starts W1U 4. It has 157 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the W1U 4 sector, and which are new since 2020

Map of every postcode in the W1U 4 sector, by new since 2020 Of the 157 postcodes in the W1U 4 sector that ONS places, 7 are new since 2020 and 150 were in use before 2020. One group of new postcodes is outlined: 7 new postcodes since 2020. Places named: Marylebone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4380A41 W1U 4AF: before 2020W1U 4AH: before 2020W1U 4AJ: before 2020W1U 4AL: before 2020W1U 4AN: before 2020W1U 4AP: before 2020W1U 4AQ: before 2020W1U 4AU: before 2020W1U 4AW: before 2020W1U 4AZ: before 2020W1U 4BG: before 2020W1U 4BJ: before 2020W1U 4BL: before 2020W1U 4BN: before 2020W1U 4BP: before 2020W1U 4BR: before 2020W1U 4BS: before 2020W1U 4BW: before 2020W1U 4BY: before 2020W1U 4BZ: before 2020W1U 4DB: before 2020W1U 4DD: before 2020W1U 4DE: before 2020W1U 4DF: before 2020W1U 4DG: before 2020W1U 4DJ: before 2020W1U 4DS: before 2020W1U 4DU: before 2020W1U 4DX: before 2020W1U 4DY: before 2020W1U 4DZ: before 2020W1U 4EA: before 2020W1U 4EE: before 2020W1U 4EF: before 2020W1U 4EG: before 2020W1U 4EJ: before 2020W1U 4EN: before 2020W1U 4EP: before 2020W1U 4EQ: before 2020W1U 4ER: before 2020W1U 4ES: before 2020W1U 4EX: before 2020W1U 4EZ: before 2020W1U 4HA: before 2020W1U 4HB: before 2020W1U 4HE: before 2020W1U 4HF: before 2020W1U 4HG: before 2020W1U 4HH: before 2020W1U 4HL: before 2020W1U 4HQ: before 2020W1U 4HR: before 2020W1U 4HS: before 2020W1U 4HU: before 2020W1U 4HX: before 2020W1U 4HY: before 2020W1U 4HZ: before 2020W1U 4JD: before 2020W1U 4JF: before 2020W1U 4JG: before 2020W1U 4JQ: before 2020W1U 4JX: before 2020W1U 4JY: before 2020W1U 4JZ: before 2020W1U 4LZ: before 2020W1U 4NA: before 2020W1U 4NF: before 2020W1U 4NJ: before 2020W1U 4NL: before 2020W1U 4NP: before 2020W1U 4NS: before 2020W1U 4PA: before 2020W1U 4PB: before 2020W1U 4PF: before 2020W1U 4PH: before 2020W1U 4PJ: before 2020W1U 4PL: before 2020W1U 4PN: before 2020W1U 4PQ: before 2020W1U 4PR: before 2020W1U 4PU: before 2020W1U 4PY: before 2020W1U 4QD: before 2020W1U 4QE: before 2020W1U 4QF: before 2020W1U 4QH: before 2020W1U 4QJ: before 2020W1U 4QL: before 2020W1U 4QN: before 2020W1U 4QP: before 2020W1U 4QQ: before 2020W1U 4QR: before 2020W1U 4QS: before 2020W1U 4QU: before 2020W1U 4QX: before 2020W1U 4QZ: before 2020W1U 4RB: before 2020W1U 4RE: before 2020W1U 4RG: before 2020W1U 4RH: before 2020W1U 4RJ: before 2020W1U 4RL: before 2020W1U 4RN: before 2020W1U 4RP: before 2020W1U 4RS: before 2020W1U 4RT: before 2020W1U 4RY: before 2020W1U 4SA: before 2020W1U 4SB: before 2020W1U 4BX: new since 2020W1U 4DA: new since 2020W1U 4EL: new since 2020W1U 4FA: new since 2020W1U 4FB: new since 2020W1U 4GD: new since 2020W1U 4NZ: new since 2020 Marylebone 7 new postcodes since 2020, outlined: this goes to W1U 4GD, the newest of them7 new postcodes since 2020 Map of every postcode in the W1U 4 sector, by new since 2020 Of the 157 postcodes in the W1U 4 sector that ONS places, 7 are new since 2020 and 150 were in use before 2020. One group of new postcodes is outlined: 7 new postcodes since 2020. Places named: Marylebone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Marylebone 7 new postcodes since 2020, outlined: this goes to W1U 4GD, the newest of them7 new postcodes since 2020
  • New since 2020: 7
  • In use before 2020: 150
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 157 postcodes in the W1U 4 sector that ONS places, 7 are new since 2020 and 150 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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; 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.

The 5 newest postcodes

W1U 4GDNovember 2024W1U 4ELJanuary 2024W1U 4FAJanuary 2024W1U 4FBJanuary 2024W1U 4BXNovember 2020

Where the new postcodes lie together

  • 7 new postcodes since 2020, outlined on the map. W1U 4GD, is the newest of them.

What do homes sell for in W1U 4?

Homes in W1U 4 sold for a typical £1,325,000 in the 12 months to September 2026, across 8 sales, HM Land Registry's figures show. The 12 months before gave £3,500,000 from 16 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£1,325,000 typical price, the 12 months to September 2026
£3,500,000 12 months to September 2025
  • Detached 1 sale, too few to price
  • Flat or maisonette £1,500,000 7 sales

Standard sales of homes at market value at the postcodes that start W1U 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 October 2026.

Postcodes in W1U 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.

W1U 4AFW1U 4AHW1U 4AJW1U 4ALW1U 4ANW1U 4APW1U 4AQW1U 4AUW1U 4AWW1U 4AZW1U 4BGW1U 4BHW1U 4BJW1U 4BLW1U 4BNW1U 4BPW1U 4BQW1U 4BRW1U 4BSW1U 4BWW1U 4BXW1U 4BYW1U 4BZW1U 4DAW1U 4DBW1U 4DDW1U 4DEW1U 4DFW1U 4DGW1U 4DJW1U 4DSW1U 4DUW1U 4DXW1U 4DYW1U 4DZW1U 4EAW1U 4EDW1U 4EEW1U 4EFW1U 4EGW1U 4EJW1U 4ELW1U 4ENW1U 4EPW1U 4EQW1U 4ERW1U 4ESW1U 4ETW1U 4EUW1U 4EWW1U 4EXW1U 4EYW1U 4EZW1U 4FAW1U 4FBW1U 4GDW1U 4HAW1U 4HBW1U 4HDW1U 4HEW1U 4HFW1U 4HGW1U 4HHW1U 4HJW1U 4HLW1U 4HNW1U 4HPW1U 4HQW1U 4HRW1U 4HSW1U 4HTW1U 4HUW1U 4HWW1U 4HXW1U 4HYW1U 4HZW1U 4JAW1U 4JDW1U 4JEW1U 4JFW1U 4JGW1U 4JQW1U 4JXW1U 4JYW1U 4JZW1U 4LZW1U 4NAW1U 4NFW1U 4NGW1U 4NJW1U 4NLW1U 4NNW1U 4NPW1U 4NRW1U 4NSW1U 4NTW1U 4NUW1U 4NWW1U 4NXW1U 4NYW1U 4NZW1U 4PAW1U 4PBW1U 4PDW1U 4PEW1U 4PFW1U 4PGW1U 4PHW1U 4PJW1U 4PLW1U 4PNW1U 4PPW1U 4PQW1U 4PRW1U 4PSW1U 4PTW1U 4PUW1U 4PWW1U 4PYW1U 4QDW1U 4QEW1U 4QFW1U 4QHW1U 4QJW1U 4QLW1U 4QNW1U 4QPW1U 4QQW1U 4QRW1U 4QSW1U 4QTW1U 4QUW1U 4QWW1U 4QXW1U 4QYW1U 4QZW1U 4RBW1U 4RDW1U 4REW1U 4RGW1U 4RHW1U 4RJW1U 4RLW1U 4RNW1U 4RPW1U 4RQW1U 4RRW1U 4RSW1U 4RTW1U 4RUW1U 4RWW1U 4RXW1U 4RYW1U 4RZW1U 4SAW1U 4SBW1U 4SD

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 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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