About the Mildenhall Conservation Area
The Mildenhall Conservation Area covers about 34 hectares and was designated by West Suffolk Council in 1973. Inside the boundary are 47 listed buildings (1 Grade I, 46 Grade II). The most significant is Church of St Mary, Grade I. Part of the area lies in flood zone 3, so an extension may need a flood risk assessment.
What changes inside the conservation area
Conservation areas are “Article 2(3) land”. You keep most permitted development rights, but these are removed or tightened.
- Rear extensionElsewhere: 3 m · 6 m with PANo 6 m / 8 m prior approval
- Two-storey extensionElsewhere: 3 mNeeds planning permission
- Side extensionElsewhere: Half the widthNeeds planning permission
- Loft conversionElsewhere: 50 m³Needs planning permission
- Garden roomElsewhere: 2.5 m high by boundariesNot beside the house
- PorchElsewhere: 3 m²Same limits
- Solar panelsElsewhere: 0.2 m projectionSame limits
- Air source heat pumpElsewhere: 1 unitNot facing the road
- Fences, walls and gatesElsewhere: 2 m · 1 m by a roadSame limits
- External claddingElsewhere: Matching materialsNeeds planning permission
- Tree workElsewhere: No notice6 weeks’ notice to the council
- Demolition (over 115 m³)Elsewhere: AllowedNeeds planning permission
Limits for a semi-detached house under the GPDO 2015. An Article 4 direction can remove more.
Listed buildings in the conservation area
Any work affecting these needs listed building consent, inside or out. Each links to its entry on the National Heritage List.
- Church of St MaryGrade I
- 1 and 2, Market PlaceGrade II
- 1, Mill StreetGrade II
- 11, St Andrew's StreetGrade II
- 12, KingswayGrade II
- 13, Mill StreetGrade II
- 13, The ChurchyardGrade II
- 14, High StreetGrade II
- 16, High StreetGrade II
- 16, Mill StreetGrade II
- 17 and 19, High StreetGrade II
- 22, 24 and 26, High StreetGrade II
- 3 Market PlaceGrade II
- 30 and 32 High StreetGrade II
- 31, 33 and 35 High Street and 2 St Andrew's StreetGrade II
- 33, Market PlaceGrade II
- 34, HIGH STREET (See details for further address information)Grade II
- 4, High StreetGrade II
- 4, Market PlaceGrade II
- 4, Mill StreetGrade II
- 45, High StreetGrade II
- 5, Mill StreetGrade II
- 6, Mill StreetGrade II
- 7 and 7a, Mill StreetGrade II
Show all 47 listed buildings ↓All 47 listed buildings
- 9 Mill StreetGrade II
- Clinton HouseGrade II
- Hanmer AlmshousesGrade II
- Hutchinson Opticians Sugar and SpiceGrade II
- Lloyds BankGrade II
- Methodist ChurchGrade II
- Mildenhall War MemorialGrade II
- Mill HouseGrade II
- Nationwide Building SocietyGrade II
- Oak House Part of Doctors Surgery the Old Gift ShopGrade II
- Parish Pump, 25 Metres East of the Market CrossGrade II
- Part of Doctors Surgery the Market CafeGrade II
- Ruin of Charnel House About 10 Metres South of the South Aisle of Church of St MaryGrade II
- Rutters and Former MuseumGrade II
- Shrubland HouseGrade II
- SpringvaleGrade II
- The Bell HotelGrade II
- The Chess GalleryGrade II
- The Cobbles RestaurantGrade II
- The CourthouseGrade II
- The Market CrossGrade II
- The PrioryGrade II
- The Riverside HotelGrade II
Streets in the conservation area
Streets with listed buildings inside the boundary. Boundaries often split a street — check your exact address.
The council’s appraisal
WEBMildenhall Conservation Area AppraisalWest Suffolk Council’s description of the area’s character — what planners look at when you apply.Open on council site ↗Nearby conservation areas
Boundary and listed buildings from West Suffolk Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.