CB21 4BE South Cambridgeshire

Streets

• Hildersham Road, South Cambridgeshire: 1 address
• Balsham Road, South Cambridgeshire: 1 address

Council tax

What each band costs in South Cambridgeshire in 2026-27: Band D £2,536 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 C (40% of about 630 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10; some small counts withheld), 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: no postcode centre in this postcode is in one.
• Listed buildings within 100 m of this postcode: none.
• 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.

Brownfield land registered for housing within 1.0 km

• Rectory Farm House, Cambridge Road, Hauxton, CAMBRIDGE, CB22 5HT, permissioned (450 m)
• 97, High Street, Balsham, CAMBRIDGE, CB21 4EP: up to 1 home, permissioned (530 m)
• 97, High Street, Balsham, CAMBRIDGE, CB21 4EP, permissioned (530 m)

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

The Environment Agency's long-term flood risk figures have not been loaded for this postcode yet.

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

No Ofcom figures for this postcode.