BL1 4 postcode sector in the BL1 district

BL1 4 is a sector of the BL1 district: every postcode that starts BL1 4. It has 208 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 BL1 4 sector, and which are new since 2020

New since 2020: 6
In use before 2020: 202

Of the 208 postcodes in the BL1 4 sector that ONS places, 6 are new since 2020 and 202 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 5 newest postcodes

BL1 4HDAugust 2023 BL1 4DAApril 2023 BL1 4DGAugust 2022 BL1 4GUMarch 2022 BL1 4GTDecember 2021

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.

BL1 4GJ

What do homes sell for in BL1 4?

Homes in BL1 4 sold for a typical £150,000 in the 12 months to August 2026, across 76 sales, HM Land Registry's figures show. The 12 months before gave £143,250 from 100 sales: not a change larger than chance would explain, given which homes happened to sell.

£150,000 typical price, the 12 months to August 2026

£143,250 12 months to August 2025

Detached £320,000 5 sales
Semi-detached £290,000 11 sales
Terraced £146,250 47 sales
Flat or maisonette £110,000 13 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 BL1 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 BL1 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.

BL1 4AA BL1 4AD BL1 4AG BL1 4AL BL1 4AN BL1 4AP BL1 4AQ BL1 4AR BL1 4AT BL1 4AW BL1 4AY BL1 4AZ BL1 4BA BL1 4BB BL1 4BD BL1 4BE BL1 4BG BL1 4BH BL1 4BJ BL1 4BL BL1 4BN BL1 4BP BL1 4BR BL1 4BS BL1 4BT BL1 4BU BL1 4BW BL1 4BX BL1 4BY BL1 4DA BL1 4DG BL1 4DH BL1 4DL BL1 4DN BL1 4DP BL1 4DQ BL1 4DR BL1 4DS BL1 4DT BL1 4DU BL1 4DW BL1 4DX BL1 4DY BL1 4DZ BL1 4EA BL1 4EB BL1 4ED BL1 4EE BL1 4EF BL1 4EG BL1 4EH BL1 4EJ BL1 4EL BL1 4EN BL1 4EP BL1 4EQ BL1 4ER BL1 4ET BL1 4EU BL1 4EX BL1 4EY BL1 4EZ BL1 4GJ BL1 4GQ BL1 4GR BL1 4GS BL1 4GT BL1 4GU BL1 4HD BL1 4HG BL1 4HH BL1 4HJ BL1 4HL BL1 4HN BL1 4HP BL1 4HR BL1 4HS BL1 4HT BL1 4HW BL1 4JA BL1 4JB BL1 4JD BL1 4JE BL1 4JG BL1 4JH BL1 4JL BL1 4JN BL1 4JP BL1 4JQ BL1 4JS BL1 4JU BL1 4JW BL1 4JX BL1 4JY BL1 4JZ BL1 4LA BL1 4LD BL1 4LG BL1 4LH BL1 4LJ BL1 4LL BL1 4LN BL1 4LR BL1 4LS BL1 4LT BL1 4LU BL1 4LW BL1 4LX BL1 4LY BL1 4LZ BL1 4NA BL1 4NB BL1 4ND BL1 4NE BL1 4NF BL1 4NG BL1 4NH BL1 4NJ BL1 4NN BL1 4NQ BL1 4NR BL1 4NW BL1 4NX BL1 4NY BL1 4PA BL1 4PB BL1 4PD BL1 4PE BL1 4PF BL1 4PG BL1 4PH BL1 4PL BL1 4PN BL1 4PP BL1 4PQ BL1 4PR BL1 4PS BL1 4PT BL1 4PU BL1 4PW BL1 4PX BL1 4PY BL1 4PZ BL1 4QB BL1 4QD BL1 4QE BL1 4QF BL1 4QG BL1 4QH BL1 4QN BL1 4QP BL1 4QQ BL1 4QR BL1 4QT BL1 4QZ BL1 4RA BL1 4RB BL1 4RD BL1 4RE BL1 4RF BL1 4RG BL1 4RH BL1 4RJ BL1 4RL BL1 4RN BL1 4RP BL1 4RQ BL1 4RR BL1 4RS BL1 4RT BL1 4RU BL1 4RW BL1 4RX BL1 4RY BL1 4RZ BL1 4SA BL1 4SB BL1 4SE BL1 4SF BL1 4SG BL1 4SH BL1 4SJ BL1 4SL BL1 4SN BL1 4SQ BL1 4SS BL1 4ST BL1 4SU BL1 4SW BL1 4SX BL1 4TA BL1 4TB BL1 4TG BL1 4TH BL1 4TQ BL1 4TR BL1 4TS BL1 4TT BL1 4TU BL1 4TX BL1 4UA BL1 4UB BL1 4UD BL1 4UE BL1 4UF BL1 4UG BL1 4UH BL1 4UJ

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.

Other sectors in BL1

BL1 1 sector BL1 2 sector BL1 3 sector BL1 5 sector BL1 6 sector BL1 7 sector BL1 8 sector BL1 9 sector All of BL1 BL postcode area

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