HA1 1 postcode sector in the HA1 district

HA1 1 is a sector of the HA1 district: every postcode that starts HA1 1. It has 174 postcodes in use, 6 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 HA1 1 sector, and which are new since 2020

Map of every postcode in the HA1 1 sector, by new since 2020 Of the 174 postcodes in the HA1 1 sector that ONS places, 11 are new since 2020 and 163 were in use before 2020. Places named: Harrow. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A404 HA1 1AR: before 2020HA1 1AS: before 2020HA1 1AT: before 2020HA1 1AY: before 2020HA1 1BA: before 2020HA1 1BB: before 2020HA1 1BD: before 2020HA1 1BE: before 2020HA1 1BH: before 2020HA1 1BQ: before 2020HA1 1BW: before 2020HA1 1DR: before 2020HA1 1DZ: before 2020HA1 1EH: before 2020HA1 1EP: before 2020HA1 1EQ: before 2020HA1 1ER: before 2020HA1 1FD: before 2020HA1 1GN: before 2020HA1 1GS: before 2020HA1 1GU: before 2020HA1 1GW: before 2020HA1 1GX: before 2020HA1 1GY: before 2020HA1 1GZ: before 2020HA1 1JP: before 2020HA1 1JR: before 2020HA1 1JS: before 2020HA1 1JU: before 2020HA1 1JX: before 2020HA1 1JY: before 2020HA1 1JZ: before 2020HA1 1LA: before 2020HA1 1LD: before 2020HA1 1LE: before 2020HA1 1LF: before 2020HA1 1LG: before 2020HA1 1LH: before 2020HA1 1LQ: before 2020HA1 1NB: before 2020HA1 1NL: before 2020HA1 1NP: before 2020HA1 1NR: before 2020HA1 1NS: before 2020HA1 1NT: before 2020HA1 1NU: before 2020HA1 1NX: before 2020HA1 1NY: before 2020HA1 1NZ: before 2020HA1 1PA: before 2020HA1 1PB: before 2020HA1 1PD: before 2020HA1 1PE: before 2020HA1 1PF: before 2020HA1 1PG: before 2020HA1 1PQ: before 2020HA1 1PS: before 2020HA1 1PT: before 2020HA1 1PY: before 2020HA1 1QA: before 2020HA1 1QB: before 2020HA1 1QD: before 2020HA1 1QF: before 2020HA1 1QJ: before 2020HA1 1QL: before 2020HA1 1QN: before 2020HA1 1QP: before 2020HA1 1QQ: before 2020HA1 1QR: before 2020HA1 1QS: before 2020HA1 1QT: before 2020HA1 1QU: before 2020HA1 1QW: before 2020HA1 1RB: before 2020HA1 1RD: before 2020HA1 1RE: before 2020HA1 1RF: before 2020HA1 1RG: before 2020HA1 1RH: before 2020HA1 1RJ: before 2020HA1 1RN: before 2020HA1 1RP: before 2020HA1 1RQ: before 2020HA1 1RR: before 2020HA1 1RS: before 2020HA1 1RT: before 2020HA1 1RU: before 2020HA1 1RW: before 2020HA1 1RX: before 2020HA1 1RY: before 2020HA1 1RZ: before 2020HA1 1SA: before 2020HA1 1SB: before 2020HA1 1SD: before 2020HA1 1SE: before 2020HA1 1SF: before 2020HA1 1SG: before 2020HA1 1SH: before 2020HA1 1SJ: before 2020HA1 1SL: before 2020HA1 1SP: before 2020HA1 1SQ: before 2020HA1 1SR: before 2020HA1 1SS: before 2020HA1 1SU: before 2020HA1 1SX: before 2020HA1 1SY: before 2020HA1 1SZ: before 2020HA1 1TA: before 2020HA1 1TB: before 2020HA1 1TD: before 2020HA1 1TE: before 2020HA1 1TG: before 2020HA1 1TH: before 2020HA1 1TJ: before 2020HA1 1TL: before 2020HA1 1TN: before 2020HA1 1TQ: before 2020HA1 1TX: before 2020HA1 1TY: before 2020HA1 1TZ: before 2020HA1 1UA: before 2020HA1 1UB: before 2020HA1 1UD: before 2020HA1 1UE: before 2020HA1 1UF: before 2020HA1 1UG: before 2020HA1 1UH: before 2020HA1 1UJ: before 2020HA1 1UL: before 2020HA1 1UN: before 2020HA1 1UP: before 2020HA1 1UQ: before 2020HA1 1UR: before 2020HA1 1UT: before 2020HA1 1UU: before 2020HA1 1UW: before 2020HA1 1UX: before 2020HA1 1XD: before 2020HA1 1XE: before 2020HA1 1XF: before 2020HA1 1XH: before 2020HA1 1XJ: before 2020HA1 1XL: before 2020HA1 1XN: before 2020HA1 1XP: before 2020HA1 1XR: before 2020HA1 1XS: before 2020HA1 1XT: before 2020HA1 1XU: before 2020HA1 1XW: before 2020HA1 1XX: before 2020HA1 1XY: before 2020HA1 1XZ: before 2020HA1 1YB: before 2020HA1 1AA: new since 2020HA1 1AF: new since 2020HA1 1HE: new since 2020HA1 1HL: new since 2020HA1 1HN: new since 2020HA1 1HP: new since 2020HA1 1HQ: new since 2020HA1 1JN: new since 2020HA1 1LN: new since 2020HA1 1ND: new since 2020HA1 1HU: new since 2020 Harrow Map of every postcode in the HA1 1 sector, by new since 2020 Of the 174 postcodes in the HA1 1 sector that ONS places, 11 are new since 2020 and 163 were in use before 2020. Places named: Harrow. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Harrow
  • New since 2020: 11
  • In use before 2020: 163

Of the 174 postcodes in the HA1 1 sector that ONS places, 11 are new since 2020 and 163 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.

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

What do homes sell for in HA1 1?

Homes in HA1 1 sold for a typical £395,250 in the 12 months to August 2026, across 40 sales, HM Land Registry's figures show. The 12 months before gave £369,125 from 56 sales: not a change larger than chance would explain, given which homes happened to sell.

£395,250 typical price, the 12 months to August 2026
£369,125 12 months to August 2025
  • Detached 1 sale, too few to price
  • Semi-detached £642,000 7 sales
  • Terraced £590,000 5 sales
  • Flat or maisonette £340,000 27 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 HA1 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 HA1 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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