AlnwickConservation Area

What being inside the Alnwick Conservation Area means for extensions, lofts, windows and trees — and how to check whether your house is inside the boundary.

Designated

1972

Size

43 ha

Listed buildings inside

225

Article 4

None found

250 m
Conservation area Listed building

About the Alnwick Conservation Area

The Alnwick Conservation Area covers about 43 hectares and was designated by Northumberland County Council in 1972. Inside the boundary are 225 listed buildings (6 Grade I, 12 Grade II*, 207 Grade II). The most significant is Church of St Michael, Grade I. 64 Tree Preservation Order records overlap the area; every other tree here still needs six weeks’ notice before work. 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.

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.

Show all 225 listed buildings ↓

Streets in the conservation area

Streets with listed buildings inside the boundary. Boundaries often split a street — check your exact address.

Fenkle StreetMarket StreetClayport StreetPercy TerraceHowick StreetLisburn StreetPercy StreetSouth StreetHotspur StreetPrudhoe StreetSaint Michael's LaneChapel Lane

The council’s appraisal

WEBAlnwick Conservation Area AppraisalNorthumberland County 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 Northumberland County Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.