CM23 3UP East Hertfordshire
Live postcode, introduced January 1980. Ward: Bishop's Stortford Central. Region: East of England.
Streets
- Market Square, Bishop's Stortford: 11 addresses
Council tax
What each band costs in East Hertfordshire in 2026-27: Band D £2,455 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,637 | £1,909 | £2,182 | £2,455 | £3,000 | £3,546 | £4,091 | £4,910 |
Homes by band in the neighbourhood around this postcode: most are in band C (45% of about 750 homes).
Planning and heritage
- Conservation area: yes, Bishop's Stortford (council page). Extensions, demolition, some windows and doors, and work on trees need consent.
- Listed buildings within 100 m of this postcode: 24.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: no.
Listed buildings
- BLACK LION INN, grade II*
- TISSIMANS, grade II*
- TISSIMANS, grade II*
- 1-3, HIGH STREET, grade II
- 14, WATER LANE, grade II
- 15, BRIDGE STREET, grade II
- 15, MARKET STREET, grade II
- 2-4, BRIDGE STREET, grade II
- 3-5, NORTH STREET, grade II
- 4, NORTH STREET, grade II
- 5, HIGH STREET, grade II
- 6, BRIDGE STREET, grade II
- 6, HIGH STREET, grade II
- 6, MARKET STREET, grade II
- ABBEYGATE TRAVEL, grade II
- BUDGENS, grade II
- GEORGE HOTEL, grade II
- HALIFAX BUILDING SOCIETY, grade II
- HANDSCOMBS LTD IRONMONGERS, grade II
- HERTFORDSHIRE AND ESSEX OBSERVER OFFICES, JARVIS BENNETT, grade II
- KINGSWOOD, grade II
- PEARSONS, grade II
- THE STAR INN, grade II
- THE WINDMILL ANTIQUARY, grade II
Brownfield land registered for housing within 1.0 km
- Old River Lane, The Causeway, Bishop's Stortford, CM23 2EN, not permissioned (160 m)
- First and Second Floors, 42 North Street, Bishop's Stortford, CM23 2LR, permissioned (200 m)
- The Mill Site, Dane Street, Bishop's Stortford, CM23 3XZ, not permissioned (370 m)
- 8 & 10 Rye Street, Bishop's Stortford, CM23 2HG, permissioned (440 m)
- The Goods Yard, Station Road, Bishop's Stortford, CM23 3BL: up to 600 homes, permissioned (730 m)
- Millars One, Southmill Road, Bishop's Stortford, CM23 3DH, permissioned (780 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 50%, gigabit 0% 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 Market Square.