IP1 4 postcode sector in the IP1 district

IP1 4 is a sector of the IP1 district: every postcode that starts IP1 4. It has 158 postcodes in use, 4 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 IP1 4 sector, by gigabit broadband

No home or business can get gigabit: 0
Some can get gigabit: 6
Every home and business can get gigabit: 148
Ofcom gives no figure: 4

Of the 158 postcodes in the IP1 4 sector that ONS places, 6 have some that can, 148 can all get it and 4 have no Ofcom figure.

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. 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; gigabit: Ofcom, Connected Nations, Spring 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

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

IP1 4FR IP1 4PY

What do homes sell for in IP1 4?

Homes in IP1 4 sold for a typical £236,500 in the 12 months to August 2026, across 90 sales, down 3% on the 12 months before, HM Land Registry's figures show.

£236,500 typical price, the 12 months to August 2026

£243,750 12 months to August 2025

▼ down 3% on the 12 months before

Detached £450,000 17 sales
Semi-detached £258,000 37 sales
Terraced £190,000 33 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 IP1 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 IP1 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.

IP1 4AA IP1 4AB IP1 4AD IP1 4AE IP1 4AF IP1 4AG IP1 4AH IP1 4AL IP1 4AN IP1 4AP IP1 4AQ IP1 4AR IP1 4AS IP1 4AT IP1 4AU IP1 4AW IP1 4AX IP1 4AY IP1 4AZ IP1 4BA IP1 4BB IP1 4BD IP1 4BE IP1 4BF IP1 4BG IP1 4BH IP1 4BJ IP1 4BN IP1 4BP IP1 4BQ IP1 4BS IP1 4BT IP1 4BU IP1 4BW IP1 4BX IP1 4BY IP1 4BZ IP1 4DA IP1 4DB IP1 4DD IP1 4DE IP1 4DF IP1 4DG IP1 4DH IP1 4DJ IP1 4DL IP1 4DN IP1 4DP IP1 4DQ IP1 4DR IP1 4DS IP1 4DT IP1 4DW IP1 4DX IP1 4EA IP1 4EB IP1 4ED IP1 4EE IP1 4EF IP1 4EG IP1 4EH IP1 4EJ IP1 4EL IP1 4EN IP1 4EP IP1 4EQ IP1 4ER IP1 4ES IP1 4ET IP1 4EU IP1 4EW IP1 4EX IP1 4EY IP1 4FB IP1 4FD IP1 4FE IP1 4FF IP1 4FR IP1 4HA IP1 4HB IP1 4HD IP1 4HE IP1 4HG IP1 4HH IP1 4HJ IP1 4HL IP1 4HN IP1 4HP IP1 4HQ IP1 4HR IP1 4HS IP1 4HT IP1 4HU IP1 4HW IP1 4HX IP1 4HY IP1 4HZ IP1 4JD IP1 4JE IP1 4JF IP1 4JG IP1 4JJ IP1 4JP IP1 4JQ IP1 4JR IP1 4JX IP1 4JY IP1 4JZ IP1 4LA IP1 4LB IP1 4LD IP1 4LE IP1 4LH IP1 4LJ IP1 4LL IP1 4LN IP1 4LP IP1 4LR IP1 4LS IP1 4LT IP1 4LU IP1 4LW IP1 4LX IP1 4LY IP1 4NE IP1 4NF IP1 4NG IP1 4NH IP1 4NJ IP1 4NL IP1 4NN IP1 4NP IP1 4NQ IP1 4NR IP1 4NS IP1 4NT IP1 4NU IP1 4NW IP1 4NX IP1 4NZ IP1 4PA IP1 4PB IP1 4PD IP1 4PE IP1 4PF IP1 4PG IP1 4PH IP1 4PJ IP1 4PP IP1 4PQ IP1 4PR IP1 4PY IP1 4QA IP1 4QB IP1 4QD IP1 4QE IP1 4QF IP1 4QG

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 IP1

IP1 1 sector IP1 2 sector IP1 3 sector IP1 5 sector IP1 6 sector IP1 9 sector All of IP1 IP postcode area

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