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, by flood risk

Map of every postcode in the W1U 4 sector, by flood risk Of the 157 postcodes in the W1U 4 sector that ONS places, 157 are not on the Environment Agency's at-risk list. Places named: Marylebone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4380A41 W1U 4AF: not on the flood risk listW1U 4AH: not on the flood risk listW1U 4AJ: not on the flood risk listW1U 4AL: not on the flood risk listW1U 4AN: not on the flood risk listW1U 4AP: not on the flood risk listW1U 4AQ: not on the flood risk listW1U 4AU: not on the flood risk listW1U 4AW: not on the flood risk listW1U 4AZ: not on the flood risk listW1U 4BG: not on the flood risk listW1U 4BJ: not on the flood risk listW1U 4BL: not on the flood risk listW1U 4BN: not on the flood risk listW1U 4BP: not on the flood risk listW1U 4BR: not on the flood risk listW1U 4BS: not on the flood risk listW1U 4BW: not on the flood risk listW1U 4BX: not on the flood risk listW1U 4BY: not on the flood risk listW1U 4BZ: not on the flood risk listW1U 4DA: not on the flood risk listW1U 4DB: not on the flood risk listW1U 4DD: not on the flood risk listW1U 4DE: not on the flood risk listW1U 4DF: not on the flood risk listW1U 4DG: not on the flood risk listW1U 4DJ: not on the flood risk listW1U 4DS: not on the flood risk listW1U 4DU: not on the flood risk listW1U 4DX: not on the flood risk listW1U 4DY: not on the flood risk listW1U 4DZ: not on the flood risk listW1U 4EA: not on the flood risk listW1U 4EE: not on the flood risk listW1U 4EF: not on the flood risk listW1U 4EG: not on the flood risk listW1U 4EJ: not on the flood risk listW1U 4EL: not on the flood risk listW1U 4EN: not on the flood risk listW1U 4EP: not on the flood risk listW1U 4EQ: not on the flood risk listW1U 4ER: not on the flood risk listW1U 4ES: not on the flood risk listW1U 4EX: not on the flood risk listW1U 4EZ: not on the flood risk listW1U 4FA: not on the flood risk listW1U 4FB: not on the flood risk listW1U 4GD: not on the flood risk listW1U 4HA: not on the flood risk listW1U 4HB: not on the flood risk listW1U 4HE: not on the flood risk listW1U 4HF: not on the flood risk listW1U 4HG: not on the flood risk listW1U 4HH: not on the flood risk listW1U 4HL: not on the flood risk listW1U 4HQ: not on the flood risk listW1U 4HR: not on the flood risk listW1U 4HS: not on the flood risk listW1U 4HU: not on the flood risk listW1U 4HX: not on the flood risk listW1U 4HY: not on the flood risk listW1U 4HZ: not on the flood risk listW1U 4JD: not on the flood risk listW1U 4JF: not on the flood risk listW1U 4JG: not on the flood risk listW1U 4JQ: not on the flood risk listW1U 4JX: not on the flood risk listW1U 4JY: not on the flood risk listW1U 4JZ: not on the flood risk listW1U 4LZ: not on the flood risk listW1U 4NA: not on the flood risk listW1U 4NF: not on the flood risk listW1U 4NJ: not on the flood risk listW1U 4NL: not on the flood risk listW1U 4NP: not on the flood risk listW1U 4NS: not on the flood risk listW1U 4NX: not on the flood risk listW1U 4PA: not on the flood risk listW1U 4PB: not on the flood risk listW1U 4PF: not on the flood risk listW1U 4PH: not on the flood risk listW1U 4PJ: not on the flood risk listW1U 4PL: not on the flood risk listW1U 4PN: not on the flood risk listW1U 4PQ: not on the flood risk listW1U 4PR: not on the flood risk listW1U 4PU: not on the flood risk listW1U 4PY: not on the flood risk listW1U 4QD: not on the flood risk listW1U 4QE: not on the flood risk listW1U 4QF: not on the flood risk listW1U 4QH: not on the flood risk listW1U 4QJ: not on the flood risk listW1U 4QL: not on the flood risk listW1U 4QN: not on the flood risk listW1U 4QP: not on the flood risk listW1U 4QQ: not on the flood risk listW1U 4QR: not on the flood risk listW1U 4QS: not on the flood risk listW1U 4QU: not on the flood risk listW1U 4QX: not on the flood risk listW1U 4QZ: not on the flood risk listW1U 4RB: not on the flood risk listW1U 4RE: not on the flood risk listW1U 4RG: not on the flood risk listW1U 4RH: not on the flood risk listW1U 4RJ: not on the flood risk listW1U 4RL: not on the flood risk listW1U 4RN: not on the flood risk listW1U 4RP: not on the flood risk listW1U 4RS: not on the flood risk listW1U 4RT: not on the flood risk listW1U 4RY: not on the flood risk listW1U 4SA: not on the flood risk listW1U 4SB: not on the flood risk list Marylebone Map of every postcode in the W1U 4 sector, by flood risk Of the 157 postcodes in the W1U 4 sector that ONS places, 157 are not on the Environment Agency's at-risk list. Places named: Marylebone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Marylebone
  • 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: 157

Of the 157 postcodes in the W1U 4 sector that ONS places, 157 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

What do homes sell for in W1U 4?

Homes in W1U 4 sold for a typical £1,325,000 in the 12 months to August 2026, across 8 sales, down 72.7% on the 12 months before, HM Land Registry's figures show.

£1,325,000 typical price, the 12 months to August 2026
£4,850,000 12 months to August 2025
▼ down 72.7% on the 12 months before
  • 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 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 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: 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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