NN4 5 postcode sector in the NN4 district

NN4 5 is a sector of the NN4 district: every postcode that starts NN4 5. It has 75 postcodes in use, 2 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 NN4 5 sector, by flood risk

Map of every postcode in the NN4 5 sector, by flood risk Of the 75 postcodes in the NN4 5 sector that ONS places, 2 are at medium risk at worst, 1 are at low risk at worst and 72 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Nene Valley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M1A45 NN4 5AB: not on the flood risk listNN4 5AD: not on the flood risk listNN4 5AE: not on the flood risk listNN4 5AG: not on the flood risk listNN4 5AH: not on the flood risk listNN4 5AJ: not on the flood risk listNN4 5AL: not on the flood risk listNN4 5AN: not on the flood risk listNN4 5AP: not on the flood risk listNN4 5AQ: not on the flood risk listNN4 5AR: not on the flood risk listNN4 5AS: not on the flood risk listNN4 5AT: not on the flood risk listNN4 5AU: not on the flood risk listNN4 5AW: not on the flood risk listNN4 5AX: not on the flood risk listNN4 5AY: not on the flood risk listNN4 5AZ: not on the flood risk listNN4 5BA: not on the flood risk listNN4 5BB: not on the flood risk listNN4 5BD: not on the flood risk listNN4 5BE: not on the flood risk listNN4 5BF: not on the flood risk listNN4 5BG: not on the flood risk listNN4 5BH: not on the flood risk listNN4 5BJ: not on the flood risk listNN4 5BL: not on the flood risk listNN4 5BN: not on the flood risk listNN4 5BP: not on the flood risk listNN4 5BQ: not on the flood risk listNN4 5BR: not on the flood risk listNN4 5BS: not on the flood risk listNN4 5BT: not on the flood risk listNN4 5BU: not on the flood risk listNN4 5BW: not on the flood risk listNN4 5BX: not on the flood risk listNN4 5BY: not on the flood risk listNN4 5BZ: not on the flood risk listNN4 5DA: not on the flood risk listNN4 5DB: not on the flood risk listNN4 5DD: not on the flood risk listNN4 5DE: not on the flood risk listNN4 5DF: not on the flood risk listNN4 5DG: not on the flood risk listNN4 5DH: not on the flood risk listNN4 5DJ: not on the flood risk listNN4 5DL: not on the flood risk listNN4 5DN: not on the flood risk listNN4 5DP: not on the flood risk listNN4 5DQ: not on the flood risk listNN4 5DR: not on the flood risk listNN4 5DS: not on the flood risk listNN4 5DT: not on the flood risk listNN4 5DU: not on the flood risk listNN4 5DW: not on the flood risk listNN4 5DX: not on the flood risk listNN4 5DY: not on the flood risk listNN4 5EA: not on the flood risk listNN4 5EB: not on the flood risk listNN4 5ED: not on the flood risk listNN4 5EE: not on the flood risk listNN4 5EF: not on the flood risk listNN4 5EG: not on the flood risk listNN4 5EH: not on the flood risk listNN4 5EJ: not on the flood risk listNN4 5EL: not on the flood risk listNN4 5EN: not on the flood risk listNN4 5EP: not on the flood risk listNN4 5FX: not on the flood risk listNN4 5FY: not on the flood risk listNN4 5FZ: not on the flood risk listNN4 5FB: low flood risk at worstNN4 5AF: medium flood risk at worstNN4 5EZ: medium flood risk at worst Nene Valley Map of every postcode in the NN4 5 sector, by flood risk Of the 75 postcodes in the NN4 5 sector that ONS places, 2 are at medium risk at worst, 1 are at low risk at worst and 72 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Nene Valley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A45M1 Nene Valley
  • A home or business at high risk: 0
  • At medium risk at worst: 2
  • At low risk at worst: 1
  • At very low risk only: 0
  • Not on the at-risk list: 72

Of the 75 postcodes in the NN4 5 sector that ONS places, 2 are at medium risk at worst, 1 are at low risk at worst and 72 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

The postcodes at medium risk at worst

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

NN4 5EZ3 at medium riskNN4 5AF1 at medium risk

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.

NN4 5WT

What do homes sell for in NN4 5?

Homes in NN4 5 sold for a typical £302,500 in the 12 months to August 2026, across 64 sales, down 0.5% on the 12 months before, HM Land Registry's figures show.

£302,500 typical price, the 12 months to August 2026
£304,000 12 months to August 2025
▼ down 0.5% on the 12 months before
  • Detached £432,500 24 sales
  • Semi-detached £305,000 9 sales
  • Terraced £278,000 10 sales
  • Flat or maisonette £165,000 21 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 NN4 5. 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 NN4 5

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.

NN4 5ABNN4 5ADNN4 5AENN4 5AFNN4 5AGNN4 5AHNN4 5AJNN4 5ALNN4 5ANNN4 5APNN4 5AQNN4 5ARNN4 5ASNN4 5ATNN4 5AUNN4 5AWNN4 5AXNN4 5AYNN4 5AZNN4 5BANN4 5BBNN4 5BDNN4 5BENN4 5BFNN4 5BGNN4 5BHNN4 5BJNN4 5BLNN4 5BNNN4 5BPNN4 5BQNN4 5BRNN4 5BSNN4 5BTNN4 5BUNN4 5BWNN4 5BXNN4 5BYNN4 5BZNN4 5DANN4 5DBNN4 5DDNN4 5DENN4 5DFNN4 5DGNN4 5DHNN4 5DJNN4 5DLNN4 5DNNN4 5DPNN4 5DQNN4 5DRNN4 5DSNN4 5DTNN4 5DUNN4 5DWNN4 5DXNN4 5DYNN4 5EANN4 5EBNN4 5EDNN4 5EENN4 5EFNN4 5EGNN4 5EHNN4 5EJNN4 5ELNN4 5ENNN4 5EPNN4 5EZNN4 5FBNN4 5FXNN4 5FYNN4 5FZNN4 5WT

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.