Older, solid-walled homes
Before-1919 homes make up 18% 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 317 buildings in and around Truro, including Truro Cathedral (Grade I); Alverton Manor Hotel (Grade II*); Church Of St Keyne (Grade II*). Listed status affects windows, renders and repairs, so check what consent exists for work already done.
List entries: Truro Cathedral · Alverton Manor Hotel · Church Of St Keyne
Source: Historic England
Conservation areas
Conservation areas here: Kenwyn Road, Truro, Truro. Permitted development rights are narrower inside a conservation area, so extensions, windows and solar panels may need planning permission.
Source: planning.data.gov.uk
Flood risk (rivers and sea)
River and sea flood risk is limited here: 4 of 100 sampled postcodes fall in Zone 2 or 3. Surface-water risk is a separate map worth a look.
Source: Environment Agency
Radon
The 1 km radon map square at the centre of Truro is class 6: an estimated 30% or more 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
Mining and mundic
A mining search is standard practice in Cornwall, and pre-1950 concrete construction can trigger a mundic test (RICS guidance).
Source: UNESCO WHS; RICS
Ground and building stone
Under most of Truro the bedrock is mudstone, siltstone and sandstone (100%). Locally the slates and shales are called killas; rubble-stone and slate-hung walls are typical, and soft stone and old mortar weather over time.
Source: BGS 625k
Ground stability
The BGS GeoSure 5 km hexagon covering Truro 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
Leasehold flats
19% of 2025 sales in Truro were leasehold. Check the lease length, ground rent, service charges and any planned major works before you commit.
Source: HM Land Registry