IP4 1LN Ipswich
Live postcode, introduced January 1980. Ward: Alexandra. Region: East of England.
Streets
- Grimwade Street, Ipswich: 86 addresses
- New Street, Ipswich: 1 address
Council tax
What each band costs in Ipswich in 2026-27: Band D £2,468 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,646 | £1,920 | £2,194 | £2,468 | £3,017 | £3,565 | £4,114 | £4,937 |
Homes by band in the neighbourhood around this postcode: most are in band A (66% of about 970 homes).
Planning and heritage
- Conservation area: yes, Central Conservation Area. Extensions, demolition, some windows and doors, and work on trees need consent.
- Listed buildings within 100 m of this postcode: 15.
- Article 4 direction (removing permitted development rights): Article 4 Direction for Small HMOs.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: no.
Listed buildings
- 86, FORE STREET, grade II*
- 88, FORE STREET, grade II*
- CHURCH OF ST CLEMENT, grade II*
- 123, FORE STREET, grade II
- 125, FORE STREET, grade II
- 127, FORE STREET, grade II
- 132-138, FORE STREET, grade II
- 68, GRIMWADE STREET, grade II
- 77, GRIMWADE STREET, grade II
- 84, FORE STREET, grade II
- 90 AND 92, FORE STREET, grade II
- 97 FORE STREET, grade II
- CAST IRON BOLLARDS, grade II
- SORREL HORSE INN, grade II
- TROPHY HOUSE, grade II
Brownfield land registered for housing within 1.0 km
- Land between 81-97 Fore Street: up to 22 homes, permissioned (120 m)
- Peter's Ice Cream etc Grimwade St: up to 35 homes, not permissioned (160 m)
- Commercial Bldgs & Jewish Burial Ground, Star Lane: up to 50 homes, not permissioned (220 m)
- Waterworks Street: up to 23 homes, not permissioned (260 m)
- 19-23 Fore Street, permissioned (280 m)
- Land between Lower Orwell Street and Star Lane, not permissioned (290 m)
- Former Gym and Trim, Foundation Street: up to 18 homes, permissioned (320 m)
- Smart Street/Foundation Street: up to 56 homes, not permissioned (380 m)
Flood risk
Rivers, the sea or surface water: in this postcode, 4 addresses are in areas at high risk, 0 at medium risk and 4 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: no home is in an area at risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: the postcode centre is in flood zone 3. Zone 3 is a 1% (1 in 100) or greater annual chance of flooding from rivers, or 0.5% from the sea, ignoring defences.
Broadband
Superfast 100%, ultrafast 100%, gigabit 100% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
The full dossier for this postcode's main street is on Grimwade Street.