IP18 6JS East Suffolk

Streets

• Trinity Street, Southwold: 4 addresses

Council tax

What each band costs in East Suffolk in 2026-27: Band D £2,335 a year on average, including the police, fire and any county and parish charges.

Homes by band in the neighbourhood around this postcode: most are in band D (33% of about 1,960 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10), for the neighbourhood (census area of about 700 homes) around it, not just this postcode; Ministry of Housing, Communities and Local Government, council tax levels 2026-27. Bands are charged as fixed shares of Band D; the actual bill depends on the parish and on discounts such as the single-person discount. Check a home's own band with the official council tax band checker.

Planning and heritage

• Conservation area: yes, Southwold (council page). Extensions, demolition, some windows and doors, and work on trees need consent.
• Listed buildings within 100 m of this postcode: 40.
• 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

• LLOYDS BANK, grade II*
• 1-19, CHURCH STREET, grade II
• 10, MARKET PLACE, grade II
• 10, QUEEN STREET, grade II
• 10, TRINITY STREET, grade II
• 12, QUEEN STREET, grade II
• 14, QUEEN STREET, grade II
• 15, MARKET PLACE, grade II
• 16, QUEEN STREET, grade II
• 18, QUEEN STREET, grade II
• 19, MARKET PLACE, grade II
• 2, EAST STREET, grade II
• 21, MARKET PLACE, grade II
• 23, MARKET PLACE, grade II
• 24 AND 26, CHURCH STREET, grade II
• 25, MARKET PLACE (See details for further address information), grade II
• 4 AND 6, QUEEN STREET, grade II
• 5 AND 6, EAST CLIFF, grade II
• 6, PINKNEY'S LANE, grade II
• 7, EAST CLIFF, grade II
• 75 AND 77, VICTORIA STREET, grade II
• 8 East Cliff, grade II
• 8, TRINITY STREET, grade II
• BACK TO FRONT COTTAGE EAST CLIFF HOUSE, grade II
• BAY VIEW (NUMBER 14) AND EAST CLIFF (NUMBER 15) AND RAILINGS ATTACHED TO FRONT, grade II
• CLIFF HOUSE AND SHRIMP COTTAGE, grade II
• EVINGTON, grade II
• GORDON HOUSE, grade II
• HOLMWOOD, grade II
• LANTERN COTTAGE (NUMBER 52), grade II

And 10 more.

Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government), compiled from councils and, for listed buildings, Historic England's National Heritage List. Conservation areas, Article 4 directions, tree preservation areas and the green belt are checked at each postcode's centre. Listed buildings and protected trees are counted within 100 m of this postcode. Councils publish Article 4 directions, tree preservation orders and brownfield registers to different standards, and some not yet. Planning applications are not here: there is no national open record of them yet.

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.

Sources: Environment Agency Flood risk: postcode search tool data (loaded 29 October 2026), Risk of Flooding from Rivers and Sea: postcodes in areas at risk (loaded 29 October 2026) and Flood Map for Planning (loaded 28 October 2026). Flood zones are checked at each postcode's centre point. These are models of areas, which their publishers say are not suitable for showing whether an individual property is at risk, and they do not cover flooding from sewers or drains. Check an address on the official long-term flood risk service.

Broadband

Superfast 100%, ultrafast 0%, gigabit 0% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.