NW9 4 postcode sector in the NW9 district

NW9 4 is a sector of the NW9 district: every postcode that starts NW9 4. It has 128 postcodes in use.

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

Every postcode in the NW9 4 sector, by flood risk

Map of every postcode in the NW9 4 sector, by flood risk Of the 128 postcodes in the NW9 4 sector that ONS places, 128 are not on the Environment Agency's at-risk list. Places named: Colindale South, Colindale North. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M1A5150 NW9 4AA: not on the flood risk listNW9 4AB: not on the flood risk listNW9 4AD: not on the flood risk listNW9 4AE: not on the flood risk listNW9 4AF: not on the flood risk listNW9 4AG: not on the flood risk listNW9 4AH: not on the flood risk listNW9 4AJ: not on the flood risk listNW9 4AL: not on the flood risk listNW9 4AN: not on the flood risk listNW9 4AP: not on the flood risk listNW9 4AQ: not on the flood risk listNW9 4AR: not on the flood risk listNW9 4AS: not on the flood risk listNW9 4AT: not on the flood risk listNW9 4AU: not on the flood risk listNW9 4AW: not on the flood risk listNW9 4AX: not on the flood risk listNW9 4AY: not on the flood risk listNW9 4AZ: not on the flood risk listNW9 4BA: not on the flood risk listNW9 4BB: not on the flood risk listNW9 4BD: not on the flood risk listNW9 4BE: not on the flood risk listNW9 4BF: not on the flood risk listNW9 4BG: not on the flood risk listNW9 4BH: not on the flood risk listNW9 4BJ: not on the flood risk listNW9 4BL: not on the flood risk listNW9 4BN: not on the flood risk listNW9 4BP: not on the flood risk listNW9 4BQ: not on the flood risk listNW9 4BR: not on the flood risk listNW9 4BS: not on the flood risk listNW9 4BT: not on the flood risk listNW9 4BU: not on the flood risk listNW9 4BW: not on the flood risk listNW9 4BX: not on the flood risk listNW9 4BY: not on the flood risk listNW9 4BZ: not on the flood risk listNW9 4DA: not on the flood risk listNW9 4DB: not on the flood risk listNW9 4DD: not on the flood risk listNW9 4DE: not on the flood risk listNW9 4DF: not on the flood risk listNW9 4DG: not on the flood risk listNW9 4DH: not on the flood risk listNW9 4DJ: not on the flood risk listNW9 4DL: not on the flood risk listNW9 4DN: not on the flood risk listNW9 4DP: not on the flood risk listNW9 4DQ: not on the flood risk listNW9 4DR: not on the flood risk listNW9 4DS: not on the flood risk listNW9 4DT: not on the flood risk listNW9 4DU: not on the flood risk listNW9 4DW: not on the flood risk listNW9 4DX: not on the flood risk listNW9 4DY: not on the flood risk listNW9 4EB: not on the flood risk listNW9 4ED: not on the flood risk listNW9 4EE: not on the flood risk listNW9 4EF: not on the flood risk listNW9 4EG: not on the flood risk listNW9 4EH: not on the flood risk listNW9 4EJ: not on the flood risk listNW9 4EL: not on the flood risk listNW9 4EN: not on the flood risk listNW9 4EP: not on the flood risk listNW9 4EQ: not on the flood risk listNW9 4ER: not on the flood risk listNW9 4ES: not on the flood risk listNW9 4ET: not on the flood risk listNW9 4EU: not on the flood risk listNW9 4EW: not on the flood risk listNW9 4EY: not on the flood risk listNW9 4EZ: not on the flood risk listNW9 4FA: not on the flood risk listNW9 4FB: not on the flood risk listNW9 4FD: not on the flood risk listNW9 4FE: not on the flood risk listNW9 4FF: not on the flood risk listNW9 4FH: not on the flood risk listNW9 4FL: not on the flood risk listNW9 4FN: not on the flood risk listNW9 4FP: not on the flood risk listNW9 4FR: not on the flood risk listNW9 4FS: not on the flood risk listNW9 4FT: not on the flood risk listNW9 4FU: not on the flood risk listNW9 4FW: not on the flood risk listNW9 4FX: not on the flood risk listNW9 4FY: not on the flood risk listNW9 4FZ: not on the flood risk listNW9 4GB: not on the flood risk listNW9 4GD: not on the flood risk listNW9 4GE: not on the flood risk listNW9 4GG: not on the flood risk listNW9 4GH: not on the flood risk listNW9 4GJ: not on the flood risk listNW9 4GL: not on the flood risk listNW9 4GN: not on the flood risk listNW9 4GP: not on the flood risk listNW9 4GQ: not on the flood risk listNW9 4GR: not on the flood risk listNW9 4GS: not on the flood risk listNW9 4GU: not on the flood risk listNW9 4GW: not on the flood risk listNW9 4GX: not on the flood risk listNW9 4HD: not on the flood risk listNW9 4HE: not on the flood risk listNW9 4HF: not on the flood risk listNW9 4HG: not on the flood risk listNW9 4HH: not on the flood risk listNW9 4HJ: not on the flood risk listNW9 4HL: not on the flood risk listNW9 4HN: not on the flood risk listNW9 4HP: not on the flood risk listNW9 4HQ: not on the flood risk list Colindale SouthColindale North Map of every postcode in the NW9 4 sector, by flood risk Of the 128 postcodes in the NW9 4 sector that ONS places, 128 are not on the Environment Agency's at-risk list. Places named: Colindale South, Colindale North. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M1 Colindale SouthColindale North
  • 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: 128

Of the 128 postcodes in the NW9 4 sector that ONS places, 128 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 NW9 4?

Homes in NW9 4 sold for a typical £424,000 in the 12 months to August 2026, across 40 sales, down 11.7% on the 12 months before, HM Land Registry's figures show.

£424,000 typical price, the 12 months to August 2026
£480,000 12 months to August 2025
▼ down 11.7% on the 12 months before
  • Terraced 2 sales, too few to price
  • Flat or maisonette £419,000 38 sales

Standard sales of homes at market value at the postcodes that start NW9 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

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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