Older, solid-walled homes
Before-1919 homes make up 24% of the stock here. Solid-walled houses behave differently from modern ones; watch for hard cement pointing and modern coatings that hold moisture in, and treat any 'rising damp' diagnosis from a damp-proofing salesman with caution.
Source: VOA, Mar 2025
Listed buildings
Historic England lists 19 buildings in and around Holsworthy, including Church Of St Peter And St Paul (Grade II*); Derriton Viaduct (Grade II*). Buying a listed home? Ask the seller for consents for any past alterations, as unauthorised works stay with the building.
List entries: Church Of St Peter And St Paul · Derriton Viaduct
Source: Historic England
Conservation area
Conservation area here: Holsworthy. If you plan changes, check with the council first: conservation area rules limit what you can do without permission.
Source: planning.data.gov.uk
Flood risk (rivers and sea)
Only 1 of the 41 postcodes we checked have their centre in Flood Zone 2 or 3. That's rivers and sea only; surface water is mapped separately, so still check the address.
Source: Environment Agency
Radon
The 1 km radon map square at the centre of Holsworthy is class 3: an estimated 3 to 5% of homes are above the radon Action Level. 100% of the sold postcodes we checked fall in a radon Affected Area. Radon is a known issue in much of the South West; ask whether the home has been tested or has protection.
Source: UKHSA/BGS
Mundic
Mundic (decaying concrete made with mine waste) is mainly a Cornish issue, but lenders also ask about it in parts of Devon such as Torridge. A pre-1950 concrete-block home here may need a mundic test.
Source: RICS
Ground and building stone
Under most of Holsworthy the bedrock is mudstone, siltstone and sandstone (100%). Older homes are often built of local stone; check pointing, wall heads and chimney stacks.
Source: BGS 625k
Ground stability
The BGS GeoSure 5 km hexagon covering Holsworthy shows moderate slope instability (landslides) potential. That's a broad screen, not a site assessment; look for cracking, sticking doors and leaning walls.
Source: BGS GeoSure