IP9 1 postcode sector in the IP9 district

IP9 1 is a sector of the IP9 district: every postcode that starts IP9 1. It has 191 postcodes in use, 3 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 IP9 1 sector, and which are new since 2020

Map of every postcode in the IP9 1 sector, by new since 2020 Of the 191 postcodes in the IP9 1 sector that ONS places, 9 are new since 2020 and 182 were in use before 2020. Places named: Holbrook. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. IP9 1AA: before 2020IP9 1AB: before 2020IP9 1AD: before 2020IP9 1AE: before 2020IP9 1AF: before 2020IP9 1AG: before 2020IP9 1AH: before 2020IP9 1AJ: before 2020IP9 1AL: before 2020IP9 1AN: before 2020IP9 1AP: before 2020IP9 1AQ: before 2020IP9 1AR: before 2020IP9 1AS: before 2020IP9 1AT: before 2020IP9 1AU: before 2020IP9 1AW: before 2020IP9 1AX: before 2020IP9 1AY: before 2020IP9 1AZ: before 2020IP9 1BA: before 2020IP9 1BB: before 2020IP9 1BD: before 2020IP9 1BE: before 2020IP9 1BG: before 2020IP9 1BH: before 2020IP9 1BJ: before 2020IP9 1BL: before 2020IP9 1BN: before 2020IP9 1BP: before 2020IP9 1BS: before 2020IP9 1BT: before 2020IP9 1BU: before 2020IP9 1BW: before 2020IP9 1BX: before 2020IP9 1BY: before 2020IP9 1BZ: before 2020IP9 1DA: before 2020IP9 1DB: before 2020IP9 1DD: before 2020IP9 1DE: before 2020IP9 1DF: before 2020IP9 1DG: before 2020IP9 1DN: before 2020IP9 1DP: before 2020IP9 1DQ: before 2020IP9 1DR: before 2020IP9 1DT: before 2020IP9 1DU: before 2020IP9 1DW: before 2020IP9 1DX: before 2020IP9 1DY: before 2020IP9 1DZ: before 2020IP9 1EA: before 2020IP9 1EB: before 2020IP9 1ED: before 2020IP9 1EE: before 2020IP9 1EF: before 2020IP9 1EG: before 2020IP9 1EH: before 2020IP9 1EJ: before 2020IP9 1EL: before 2020IP9 1EN: before 2020IP9 1EP: before 2020IP9 1EQ: before 2020IP9 1ER: before 2020IP9 1ES: before 2020IP9 1ET: before 2020IP9 1EW: before 2020IP9 1EX: before 2020IP9 1EY: before 2020IP9 1EZ: before 2020IP9 1HA: before 2020IP9 1HB: before 2020IP9 1HD: before 2020IP9 1HH: before 2020IP9 1HJ: before 2020IP9 1HL: before 2020IP9 1HN: before 2020IP9 1HP: before 2020IP9 1HQ: before 2020IP9 1HR: before 2020IP9 1HS: before 2020IP9 1HT: before 2020IP9 1HW: before 2020IP9 1HX: before 2020IP9 1HY: before 2020IP9 1HZ: before 2020IP9 1JA: before 2020IP9 1JB: before 2020IP9 1JD: before 2020IP9 1JE: before 2020IP9 1JF: before 2020IP9 1JG: before 2020IP9 1JH: before 2020IP9 1JJ: before 2020IP9 1JL: before 2020IP9 1JN: before 2020IP9 1JP: before 2020IP9 1JR: before 2020IP9 1JS: before 2020IP9 1JT: before 2020IP9 1JU: before 2020IP9 1JW: before 2020IP9 1JX: before 2020IP9 1JY: before 2020IP9 1LD: before 2020IP9 1LE: before 2020IP9 1LF: before 2020IP9 1LG: before 2020IP9 1LH: before 2020IP9 1LJ: before 2020IP9 1LL: before 2020IP9 1LN: before 2020IP9 1LP: before 2020IP9 1LQ: before 2020IP9 1LR: before 2020IP9 1LW: before 2020IP9 1LX: before 2020IP9 1LZ: before 2020IP9 1NA: before 2020IP9 1NB: before 2020IP9 1ND: before 2020IP9 1NE: before 2020IP9 1NF: before 2020IP9 1NH: before 2020IP9 1NN: before 2020IP9 1NP: before 2020IP9 1NQ: before 2020IP9 1NR: before 2020IP9 1NS: before 2020IP9 1NT: before 2020IP9 1NU: before 2020IP9 1NW: before 2020IP9 1NX: before 2020IP9 1NY: before 2020IP9 1NZ: before 2020IP9 1PA: before 2020IP9 1PB: before 2020IP9 1PG: before 2020IP9 1PH: before 2020IP9 1PJ: before 2020IP9 1PL: before 2020IP9 1PN: before 2020IP9 1PP: before 2020IP9 1PQ: before 2020IP9 1PR: before 2020IP9 1PS: before 2020IP9 1PU: before 2020IP9 1PW: before 2020IP9 1PX: before 2020IP9 1PY: before 2020IP9 1PZ: before 2020IP9 1QA: before 2020IP9 1QB: before 2020IP9 1QD: before 2020IP9 1QE: before 2020IP9 1QF: before 2020IP9 1QH: before 2020IP9 1QJ: before 2020IP9 1QN: before 2020IP9 1QR: before 2020IP9 1RJ: before 2020IP9 1RL: before 2020IP9 1RN: before 2020IP9 1RP: before 2020IP9 1RQ: before 2020IP9 1RR: before 2020IP9 1RS: before 2020IP9 1BF: new since 2020IP9 1FD: new since 2020IP9 1FE: new since 2020IP9 1FF: new since 2020IP9 1FG: new since 2020IP9 1FJ: new since 2020IP9 1FL: new since 2020IP9 1QS: new since 2020IP9 1FB: new since 2020 Holbrook Map of every postcode in the IP9 1 sector, by new since 2020 Of the 191 postcodes in the IP9 1 sector that ONS places, 9 are new since 2020 and 182 were in use before 2020. Places named: Holbrook. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Holbrook
  • New since 2020: 9
  • In use before 2020: 182

Of the 191 postcodes in the IP9 1 sector that ONS places, 9 are new since 2020 and 182 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

The 5 newest postcodes

IP9 1FLSeptember 2024IP9 1FGApril 2024IP9 1FENovember 2023IP9 1FDOctober 2023IP9 1FFSeptember 2023

What do homes sell for in IP9 1?

Homes in IP9 1 sold for a typical £280,000 in the 12 months to August 2026, across 49 sales, down 16.4% on the 12 months before, HM Land Registry's figures show.

£280,000 typical price, the 12 months to August 2026
£335,000 12 months to August 2025
▼ down 16.4% on the 12 months before
  • Detached £371,250 16 sales
  • Semi-detached £275,000 20 sales
  • Terraced £275,000 9 sales
  • Flat or maisonette 4 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 IP9 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 IP9 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.

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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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