BB3 1 postcode sector in the BB3 district

BB3 1 is a sector of the BB3 district: every postcode that starts BB3 1. It has 185 postcodes in use, 7 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 BB3 1 sector, by flood risk

Map of every postcode in the BB3 1 sector, by flood risk Of the 185 postcodes in the BB3 1 sector that ONS places, 25 have a home or business at high risk, 3 are at medium risk at worst, 15 are at low risk at worst and 142 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 17 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Darwen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. BB3 1AF: not on the flood risk listBB3 1AL: not on the flood risk listBB3 1AP: not on the flood risk listBB3 1AS: not on the flood risk listBB3 1AW: not on the flood risk listBB3 1BD: not on the flood risk listBB3 1BN: not on the flood risk listBB3 1BR: not on the flood risk listBB3 1BU: not on the flood risk listBB3 1BW: not on the flood risk listBB3 1BX: not on the flood risk listBB3 1BY: not on the flood risk listBB3 1BZ: not on the flood risk listBB3 1DD: not on the flood risk listBB3 1DE: not on the flood risk listBB3 1DG: not on the flood risk listBB3 1DH: not on the flood risk listBB3 1DL: not on the flood risk listBB3 1DR: not on the flood risk listBB3 1DS: not on the flood risk listBB3 1DT: not on the flood risk listBB3 1DU: not on the flood risk listBB3 1DX: not on the flood risk listBB3 1DY: not on the flood risk listBB3 1DZ: not on the flood risk listBB3 1EA: not on the flood risk listBB3 1EB: not on the flood risk listBB3 1ED: not on the flood risk listBB3 1EE: not on the flood risk listBB3 1EF: not on the flood risk listBB3 1EG: not on the flood risk listBB3 1EP: not on the flood risk listBB3 1EQ: not on the flood risk listBB3 1ER: not on the flood risk listBB3 1EW: not on the flood risk listBB3 1EY: not on the flood risk listBB3 1EZ: not on the flood risk listBB3 1FD: not on the flood risk listBB3 1FE: not on the flood risk listBB3 1FF: not on the flood risk listBB3 1FG: not on the flood risk listBB3 1HD: not on the flood risk listBB3 1HE: not on the flood risk listBB3 1HF: not on the flood risk listBB3 1HH: not on the flood risk listBB3 1HJ: not on the flood risk listBB3 1HL: not on the flood risk listBB3 1HN: not on the flood risk listBB3 1HS: not on the flood risk listBB3 1HT: not on the flood risk listBB3 1HU: not on the flood risk listBB3 1HX: not on the flood risk listBB3 1HY: not on the flood risk listBB3 1HZ: not on the flood risk listBB3 1JA: not on the flood risk listBB3 1JB: not on the flood risk listBB3 1JD: not on the flood risk listBB3 1JE: not on the flood risk listBB3 1JF: not on the flood risk listBB3 1JG: not on the flood risk listBB3 1JH: not on the flood risk listBB3 1JJ: not on the flood risk listBB3 1JL: not on the flood risk listBB3 1JN: not on the flood risk listBB3 1JP: not on the flood risk listBB3 1JQ: not on the flood risk listBB3 1JR: not on the flood risk listBB3 1JS: not on the flood risk listBB3 1JT: not on the flood risk listBB3 1JU: not on the flood risk listBB3 1JW: not on the flood risk listBB3 1JX: not on the flood risk listBB3 1JY: not on the flood risk listBB3 1JZ: not on the flood risk listBB3 1LA: not on the flood risk listBB3 1LB: not on the flood risk listBB3 1LD: not on the flood risk listBB3 1LE: not on the flood risk listBB3 1LF: not on the flood risk listBB3 1LG: not on the flood risk listBB3 1LH: not on the flood risk listBB3 1LJ: not on the flood risk listBB3 1LL: not on the flood risk listBB3 1LN: not on the flood risk listBB3 1LP: not on the flood risk listBB3 1LQ: not on the flood risk listBB3 1LR: not on the flood risk listBB3 1LS: not on the flood risk listBB3 1LT: not on the flood risk listBB3 1LU: not on the flood risk listBB3 1LW: not on the flood risk listBB3 1LY: not on the flood risk listBB3 1NB: not on the flood risk listBB3 1ND: not on the flood risk listBB3 1NF: not on the flood risk listBB3 1NG: not on the flood risk listBB3 1NH: not on the flood risk listBB3 1NJ: not on the flood risk listBB3 1NL: not on the flood risk listBB3 1NN: not on the flood risk listBB3 1NP: not on the flood risk listBB3 1NQ: not on the flood risk listBB3 1NR: not on the flood risk listBB3 1NT: not on the flood risk listBB3 1NU: not on the flood risk listBB3 1NW: not on the flood risk listBB3 1NX: not on the flood risk listBB3 1NY: not on the flood risk listBB3 1NZ: not on the flood risk listBB3 1PA: not on the flood risk listBB3 1PB: not on the flood risk listBB3 1PD: not on the flood risk listBB3 1PE: not on the flood risk listBB3 1PF: not on the flood risk listBB3 1PG: not on the flood risk listBB3 1PH: not on the flood risk listBB3 1PJ: not on the flood risk listBB3 1PL: not on the flood risk listBB3 1PP: not on the flood risk listBB3 1PQ: not on the flood risk listBB3 1PR: not on the flood risk listBB3 1PU: not on the flood risk listBB3 1PW: not on the flood risk listBB3 1PY: not on the flood risk listBB3 1QA: not on the flood risk listBB3 1QB: not on the flood risk listBB3 1QD: not on the flood risk listBB3 1QG: not on the flood risk listBB3 1QS: not on the flood risk listBB3 1QT: not on the flood risk listBB3 1QU: not on the flood risk listBB3 1QX: not on the flood risk listBB3 1QY: not on the flood risk listBB3 1QZ: not on the flood risk listBB3 1RG: not on the flood risk listBB3 1RH: not on the flood risk listBB3 1RJ: not on the flood risk listBB3 1RQ: not on the flood risk listBB3 1SE: not on the flood risk listBB3 1AJ: low flood risk at worstBB3 1AU: low flood risk at worstBB3 1AX: low flood risk at worstBB3 1AZ: low flood risk at worstBB3 1BE: low flood risk at worstBB3 1BG: low flood risk at worstBB3 1BH: low flood risk at worstBB3 1BQ: low flood risk at worstBB3 1BT: low flood risk at worstBB3 1DB: low flood risk at worstBB3 1DP: low flood risk at worstBB3 1DQ: low flood risk at worstBB3 1PS: low flood risk at worstBB3 1QP: low flood risk at worstBB3 1QR: low flood risk at worstBB3 1AE: medium flood risk at worstBB3 1DF: medium flood risk at worstBB3 1DJ: medium flood risk at worstBB3 1AD: high flood riskBB3 1AR: high flood riskBB3 1AT: high flood riskBB3 1AY: high flood riskBB3 1BF: high flood riskBB3 1DW: high flood riskBB3 1EH: high flood riskBB3 1EJ: high flood riskBB3 1EL: high flood riskBB3 1EN: high flood riskBB3 1ES: high flood riskBB3 1ET: high flood riskBB3 1EU: high flood riskBB3 1EX: high flood riskBB3 1HA: high flood riskBB3 1HB: high flood riskBB3 1HG: high flood riskBB3 1HQ: high flood riskBB3 1NS: high flood riskBB3 1PX: high flood riskBB3 1QE: high flood riskBB3 1QJ: high flood riskBB3 1QL: high flood riskBB3 1QQ: high flood riskBB3 1QW: high flood risk Darwen 17 postcodes at high or medium risk, outlined: this goes to BB3 1HG, the one with most homes and businesses at high risk17 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to BB3 1AT, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the BB3 1 sector, by flood risk Of the 185 postcodes in the BB3 1 sector that ONS places, 25 have a home or business at high risk, 3 are at medium risk at worst, 15 are at low risk at worst and 142 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 17 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Darwen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Darwen 17 postcodes at high or medium risk, outlined: this goes to BB3 1HG, the one with most homes and businesses at high risk17 postcodes at high or medium risk
  • A home or business at high risk: 25
  • At medium risk at worst: 3
  • At low risk at worst: 15
  • At very low risk only: 0
  • Not on the at-risk list: 142
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 185 postcodes in the BB3 1 sector that ONS places, 25 have a home or business at high risk, 3 are at medium risk at worst, 15 are at low risk at worst and 142 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.

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

25 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.

Where the postcodes at high or medium risk lie together

What do homes sell for in BB3 1?

Homes in BB3 1 sold for a typical £143,500 in the 12 months to August 2026, across 100 sales, down 1.2% on the 12 months before, HM Land Registry's figures show.

£143,500 typical price, the 12 months to August 2026
£145,250 12 months to August 2025
▼ down 1.2% on the 12 months before
  • Detached £350,000 7 sales
  • Semi-detached £200,000 19 sales
  • Terraced £127,500 71 sales
  • Flat or maisonette 3 sales, too few to price

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 BB3 1. 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 BB3 1

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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