CB3 0BB Cambridge
Live postcode, introduced January 1980. Ward: Castle. Region: East of England.
Streets
- Castle Row, Cambridge: 20 addresses
- St Peter's Street, Cambridge: 1 address
- Castle Street, Cambridge: 1 address
- Huntingdon Road, Cambridge: 1 address
- Unnamed street near Castle Row, Cambridge: 1 address
Council tax
What each band costs in Cambridge in 2026-27: Band D £2,467 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,645 | £1,919 | £2,193 | £2,467 | £3,015 | £3,563 | £4,112 | £4,934 |
Homes by band in the neighbourhood around this postcode: most are in band A (33% of about 1,630 homes).
Planning and heritage
- Conservation area: yes, Castle And Victoria Road (council page). Extensions, demolition, some windows and doors, and work on trees need consent.
- Listed buildings within 100 m of this postcode: 7.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: 15 protected trees within 100 m of this postcode.
- Green belt: no.
Listed buildings
- 1-5, BELL'S COURT (See details for further address information), grade II
- 55-69, CASTLE STREET, grade II
- CARETAKER'S HOUSE IN THE GROUNDS OF COUNTY HALL AND ABOUT FIFTY YARDS TO THE SOUTH, grade II
- Castle End Mission and Working Mens Institute with attached Iron Hall, grade II
- CASTLE STREET METHODIST CHURCH AND SUNDAY SCHOOL INCLUDING FRONT GATES AND RAILINGS, grade II
- SOCIAL SERVICE DEPARTMENT, grade II
- THE CASTLE INN, grade II
Brownfield land registered for housing within 1.0 km
- St. Edmund's College, CAMBRIDGE, CB3 0BN, permissioned (300 m)
- Carlyle Lodge 71A Chesterton Road Cambridge CB4 3AN: up to 6 homes, permissioned (540 m)
- Henry Giles House Chesterton Road, not permissioned (560 m)
- Housing allocation at, Henry Giles House, Chesterton Road, Cambridge, CB4: up to 48 homes, not permissioned (570 m)
- Housing allocation at, Willowcroft, Histon Road, Cambridge, CB4: up to 78 homes, not permissioned (740 m)
- Willowcroft, Histon Road, permissioned (750 m)
- 121 - 125 Chesterton Road Cambridge Cambridgeshire: up to 19 homes, permissioned (780 m)
- 18 Chesterton Road Cambridge Cambridgeshire: up to 8 homes, permissioned (800 m)
Flood risk
No address in this postcode is in an area at high, medium or low risk of flooding from rivers, the sea or surface water. The rest are in areas at very low risk: less than a 0.1% (1 in 1,000) chance a year.
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: no postcode centre is in flood zone 2 or 3.
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 Castle Row.