BD1 4 postcode sector in the BD1 district

BD1 4 is a sector of the BD1 district: every postcode that starts BD1 4. It has 92 postcodes in use, 11 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 BD1 4 sector, by flood risk

Map of every postcode in the BD1 4 sector, by flood risk Of the 92 postcodes in the BD1 4 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst and 71 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: City, Bolton & Undercliffe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A6177A650A6037A658 BD1 4AL: not on the flood risk listBD1 4AN: not on the flood risk listBD1 4AP: not on the flood risk listBD1 4AR: not on the flood risk listBD1 4AS: not on the flood risk listBD1 4AZ: not on the flood risk listBD1 4BA: not on the flood risk listBD1 4BD: not on the flood risk listBD1 4BE: not on the flood risk listBD1 4BG: not on the flood risk listBD1 4BN: not on the flood risk listBD1 4BP: not on the flood risk listBD1 4BS: not on the flood risk listBD1 4DA: not on the flood risk listBD1 4DE: not on the flood risk listBD1 4DJ: not on the flood risk listBD1 4DQ: not on the flood risk listBD1 4DR: not on the flood risk listBD1 4DY: not on the flood risk listBD1 4DZ: not on the flood risk listBD1 4EG: not on the flood risk listBD1 4EH: not on the flood risk listBD1 4EJ: not on the flood risk listBD1 4EL: not on the flood risk listBD1 4EP: not on the flood risk listBD1 4EQ: not on the flood risk listBD1 4ES: not on the flood risk listBD1 4EW: not on the flood risk listBD1 4EY: not on the flood risk listBD1 4HA: not on the flood risk listBD1 4HB: not on the flood risk listBD1 4HD: not on the flood risk listBD1 4HF: not on the flood risk listBD1 4HP: not on the flood risk listBD1 4HR: not on the flood risk listBD1 4HT: not on the flood risk listBD1 4JB: not on the flood risk listBD1 4NN: not on the flood risk listBD1 4NS: not on the flood risk listBD1 4NT: not on the flood risk listBD1 4PB: not on the flood risk listBD1 4PD: not on the flood risk listBD1 4PS: not on the flood risk listBD1 4PU: not on the flood risk listBD1 4QD: not on the flood risk listBD1 4QE: not on the flood risk listBD1 4QF: not on the flood risk listBD1 4QG: not on the flood risk listBD1 4QH: not on the flood risk listBD1 4QJ: not on the flood risk listBD1 4QL: not on the flood risk listBD1 4QP: not on the flood risk listBD1 4QQ: not on the flood risk listBD1 4QU: not on the flood risk listBD1 4RD: not on the flood risk listBD1 4RN: not on the flood risk listBD1 4SB: not on the flood risk listBD1 4SJ: not on the flood risk listBD1 4SP: not on the flood risk listBD1 4SX: not on the flood risk listBD1 4SD: low flood risk at worstBD1 4SR: low flood risk at worstBD1 4AF: medium flood risk at worstBD1 4AJ: medium flood risk at worstBD1 4BQ: medium flood risk at worstBD1 4RH: medium flood risk at worstBD1 4RX: medium flood risk at worstBD1 4AA: high flood riskBD1 4AB: high flood riskBD1 4AG: high flood riskBD1 4AH: high flood riskBD1 4AY: high flood riskBD1 4HU: high flood riskBD1 4RA: high flood riskBD1 4RB: high flood riskBD1 4RF: high flood riskBD1 4RP: high flood riskBD1 4RU: high flood riskBD1 4SF: high flood riskBD1 4UG: high flood riskBD1 4XY: high flood risk CityBolton & Undercliffe 7 postcodes at high or medium risk, outlined: this goes to BD1 4AB, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in the BD1 4 sector, by flood risk Of the 92 postcodes in the BD1 4 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst and 71 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: City, Bolton & Undercliffe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A6037 CityBolton & Undercliffe 7 postcodes at high or medium risk, outlined: this goes to BD1 4AB, the one with most homes and businesses at high risk7 postcodes at high or medium risk
  • A home or business at high risk: 14
  • At medium risk at worst: 5
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 71
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 92 postcodes in the BD1 4 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst and 71 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. 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.

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 high risk

14 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

BD1 4RF59 at high riskBD1 4AB58 at high riskBD1 4AG11 at high riskBD1 4RU6 at high riskBD1 4RB5 at high riskBD1 4HU3 at high riskBD1 4RA3 at high riskBD1 4UG3 at high riskBD1 4SF2 at high riskBD1 4AY1 at high riskBD1 4AA1 at high riskBD1 4AH1 at high risk

Where the postcodes at high or medium risk lie together

  • 7 postcodes at high or medium risk, outlined on the map. BD1 4AB, is the one with most homes and businesses at high risk.

What do homes sell for in BD1 4?

HM Land Registry records 3 sales of homes in BD1 4 in the 12 months to August 2026: too few to give a typical price.

  • Semi-detached 1 sale, too few to price
  • Flat or maisonette 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start BD1 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 BD1 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.

BD1 4AABD1 4ABBD1 4AFBD1 4AGBD1 4AHBD1 4AJBD1 4ALBD1 4ANBD1 4APBD1 4ARBD1 4ASBD1 4AYBD1 4AZBD1 4BABD1 4BDBD1 4BEBD1 4BGBD1 4BNBD1 4BPBD1 4BQBD1 4BSBD1 4DABD1 4DEBD1 4DJBD1 4DQBD1 4DRBD1 4DSBD1 4DYBD1 4DZBD1 4EGBD1 4EHBD1 4EJBD1 4ELBD1 4EPBD1 4EQBD1 4ESBD1 4EWBD1 4EYBD1 4HABD1 4HBBD1 4HDBD1 4HFBD1 4HPBD1 4HRBD1 4HTBD1 4HUBD1 4JBBD1 4NNBD1 4NSBD1 4NTBD1 4PBBD1 4PDBD1 4PSBD1 4PUBD1 4QDBD1 4QEBD1 4QFBD1 4QGBD1 4QHBD1 4QJBD1 4QLBD1 4QPBD1 4QQBD1 4QUBD1 4QZBD1 4RABD1 4RBBD1 4RDBD1 4RFBD1 4RHBD1 4RNBD1 4RPBD1 4RSBD1 4RUBD1 4RXBD1 4SBBD1 4SDBD1 4SFBD1 4SJBD1 4SPBD1 4SRBD1 4SXBD1 4TYBD1 4UGBD1 4XXBD1 4XYBD1 4YDBD1 4YEBD1 4YHBD1 4YLBD1 4YNBD1 4YR

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.