IP18 6DP East Suffolk

Streets

• High Street, Southwold: 25 addresses
• Bank Alley, Southwold: 1 address

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: 31.
• 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

• BUCKENHAM HOUSE, grade II*
• LLOYDS BANK, grade II*
• MANOR HOUSE AND MANOR GATE INCLUDING FORECOURT WALLS, grade II*
• SUTHERLAND HOUSE, grade II*
• 1-19, CHURCH STREET, grade II
• 10, MARKET PLACE, grade II
• 11 AND 13, MARKET PLACE, grade II
• 15, MARKET PLACE, 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
• 3, MARKET PLACE, grade II
• 55-63, HIGH STREET, grade II
• 66, HIGH STREET, grade II
• 71, HIGH STREET, grade II
• 82, 84 AND 86, HIGH STREET, grade II
• 94, HIGH STREET, grade II
• 96, HIGH STREET, grade II
• 98, 98A AND 100, HIGH STREET, grade II
• CROWN HOTEL, grade II
• GORDON HOUSE, grade II
• OLDE BANKE HOUSE, grade II
• RUTLAND HOUSE, grade II
• SOUTHWOLD MUSEUM, grade II
• SWAN HOTEL, grade II
• TOWN HALL, grade II
• TOWN PUMP, grade II

And 1 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

Rivers, the sea or surface water: in this postcode, 0 addresses are in areas at high risk, 0 at medium risk and 2 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: 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 91%, gigabit 91% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.