NW3 3 postcode sector in the NW3 district

NW3 3 is a sector of the NW3 district: every postcode that starts NW3 3. It has 149 postcodes in use, 8 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 NW3 3 sector, by flood risk

Map of every postcode in the NW3 3 sector, by flood risk Of the 149 postcodes in the NW3 3 sector that ONS places, 149 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Primrose Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A502A41 NW3 3AA: not on the flood risk listNW3 3AB: not on the flood risk listNW3 3AD: not on the flood risk listNW3 3AG: not on the flood risk listNW3 3AH: not on the flood risk listNW3 3AJ: not on the flood risk listNW3 3AP: not on the flood risk listNW3 3AQ: not on the flood risk listNW3 3AR: not on the flood risk listNW3 3AS: not on the flood risk listNW3 3AT: not on the flood risk listNW3 3AU: not on the flood risk listNW3 3AX: not on the flood risk listNW3 3AY: not on the flood risk listNW3 3AZ: not on the flood risk listNW3 3BN: not on the flood risk listNW3 3BP: not on the flood risk listNW3 3BS: not on the flood risk listNW3 3BT: not on the flood risk listNW3 3BU: not on the flood risk listNW3 3BX: not on the flood risk listNW3 3BY: not on the flood risk listNW3 3DE: not on the flood risk listNW3 3DG: not on the flood risk listNW3 3DJ: not on the flood risk listNW3 3DL: not on the flood risk listNW3 3DN: not on the flood risk listNW3 3DP: not on the flood risk listNW3 3DR: not on the flood risk listNW3 3DS: not on the flood risk listNW3 3DU: not on the flood risk listNW3 3DX: not on the flood risk listNW3 3DY: not on the flood risk listNW3 3EA: not on the flood risk listNW3 3EH: not on the flood risk listNW3 3EJ: not on the flood risk listNW3 3EL: not on the flood risk listNW3 3EN: not on the flood risk listNW3 3EP: not on the flood risk listNW3 3ER: not on the flood risk listNW3 3ES: not on the flood risk listNW3 3ET: not on the flood risk listNW3 3EU: not on the flood risk listNW3 3EX: not on the flood risk listNW3 3EY: not on the flood risk listNW3 3HA: not on the flood risk listNW3 3HH: not on the flood risk listNW3 3HJ: not on the flood risk listNW3 3HL: not on the flood risk listNW3 3HN: not on the flood risk listNW3 3HP: not on the flood risk listNW3 3HR: not on the flood risk listNW3 3HS: not on the flood risk listNW3 3HT: not on the flood risk listNW3 3HU: not on the flood risk listNW3 3HX: not on the flood risk listNW3 3HY: not on the flood risk listNW3 3JB: not on the flood risk listNW3 3JG: not on the flood risk listNW3 3JH: not on the flood risk listNW3 3JJ: not on the flood risk listNW3 3JL: not on the flood risk listNW3 3JN: not on the flood risk listNW3 3JS: not on the flood risk listNW3 3JT: not on the flood risk listNW3 3JW: not on the flood risk listNW3 3JY: not on the flood risk listNW3 3JZ: not on the flood risk listNW3 3LD: not on the flood risk listNW3 3LG: not on the flood risk listNW3 3LH: not on the flood risk listNW3 3LJ: not on the flood risk listNW3 3LL: not on the flood risk listNW3 3LN: not on the flood risk listNW3 3LP: not on the flood risk listNW3 3LR: not on the flood risk listNW3 3LT: not on the flood risk listNW3 3LU: not on the flood risk listNW3 3LX: not on the flood risk listNW3 3LY: not on the flood risk listNW3 3LZ: not on the flood risk listNW3 3NA: not on the flood risk listNW3 3ND: not on the flood risk listNW3 3NF: not on the flood risk listNW3 3NG: not on the flood risk listNW3 3NH: not on the flood risk listNW3 3NJ: not on the flood risk listNW3 3NN: not on the flood risk listNW3 3NP: not on the flood risk listNW3 3NQ: not on the flood risk listNW3 3NR: not on the flood risk listNW3 3NT: not on the flood risk listNW3 3NU: not on the flood risk listNW3 3PA: not on the flood risk listNW3 3PL: not on the flood risk listNW3 3PS: not on the flood risk listNW3 3PT: not on the flood risk listNW3 3PU: not on the flood risk listNW3 3PX: not on the flood risk listNW3 3PY: not on the flood risk listNW3 3QA: not on the flood risk listNW3 3QB: not on the flood risk listNW3 3QD: not on the flood risk listNW3 3QE: not on the flood risk listNW3 3QP: not on the flood risk listNW3 3QR: not on the flood risk listNW3 3QS: not on the flood risk listNW3 3QT: not on the flood risk listNW3 3QU: not on the flood risk listNW3 3QX: not on the flood risk listNW3 3QY: not on the flood risk listNW3 3RA: not on the flood risk listNW3 3RB: not on the flood risk listNW3 3RD: not on the flood risk listNW3 3RE: not on the flood risk listNW3 3RP: not on the flood risk listNW3 3RR: not on the flood risk listNW3 3RS: not on the flood risk listNW3 3RT: not on the flood risk listNW3 3RU: not on the flood risk listNW3 3RY: not on the flood risk listNW3 3SA: not on the flood risk listNW3 3SB: not on the flood risk listNW3 3SD: not on the flood risk listNW3 3SE: not on the flood risk listNW3 3SG: not on the flood risk listNW3 3SH: not on the flood risk listNW3 3SL: not on the flood risk listNW3 3SN: not on the flood risk listNW3 3SP: not on the flood risk listNW3 3SR: not on the flood risk listNW3 3SS: not on the flood risk listNW3 3ST: not on the flood risk listNW3 3SU: not on the flood risk listNW3 3XX: not on the flood risk list Primrose Hill Map of every postcode in the NW3 3 sector, by flood risk Of the 149 postcodes in the NW3 3 sector that ONS places, 149 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Primrose Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Primrose Hill
  • 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: 149

Of the 149 postcodes in the NW3 3 sector that ONS places, 149 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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

What do homes sell for in NW3 3?

Homes in NW3 3 sold for a typical £910,000 in the 12 months to August 2026, across 61 sales, down 5.5% on the 12 months before, HM Land Registry's figures show.

£910,000 typical price, the 12 months to August 2026
£962,500 12 months to August 2025
▼ down 5.5% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached 2 sales, too few to price
  • Terraced £1,600,000 9 sales
  • Flat or maisonette £840,000 49 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 NW3 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 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 NW3 3

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.

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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