Older, solid-walled homes
With 34% of local homes built before the First World War, expect stone or solid brick walls, lath-and-plaster ceilings and roof timbers that have been patched more than once.
Source: VOA, Mar 2025
Surveyors · St Dennis, Cornwall
Surveyors in St Dennis
Home surveys in St Dennis: the local risks, the price picture and the right survey level, from a surveyor-led Cornwall practice.
Our suggestion for St Dennis
Level 2 or Level 3, depending on age
About a fifth or more of St Dennis's homes are pre-1919, so the right survey depends on the house. Pick Level 3 for anything pre-1919, listed or much altered; a Level 2 covers a standard post-war or modern house in fair condition.
- Roughly 34% of St Dennis's homes pre-date 1919.
- 1 listed building in and around St Dennis.
St Dennis market snapshot
£205,500 was the middle price of the 24 St Dennis homes sold in 2025; that's down 4% on 2024's £215,000.
- Median price, 2025
- £205,500
- Sales, 2025
- 24
- Median vs 2024
- -4.4%
- Leasehold share
- 4%
- Residents, Census 2021
- 2,363
| Type | Median |
|---|---|
| semi-detached | £206,250 |
| terraced | £172,500 |
Sales mix: terraced 42%, semi-detached 38%, detached 17%, flat/maisonette 4%. PL26. HM Land Registry, 2025, ONS built-up area. Residents: St Dennis built-up area, ONS Census 2021.
What to look out for when buying in St Dennis
Listed buildings
Historic England lists 1 building in and around St Dennis. Buying a listed home? Ask the seller for consents for any past alterations, as unauthorised works stay with the building.
Source: Historic England
Flood risk (rivers and sea)
Only 0 of the 19 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 St Dennis 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. Ask the seller for any radon test result, or test after you move in; remedies are usually straightforward.
Source: UKHSA/BGS
Mining and mundic
Expect your conveyancer to order a mining search, and if the home has pre-1950 concrete blocks, a mundic test may be a lender condition.
Source: UNESCO WHS; RICS
Ground and building stone
Under most of St Dennis the bedrock is mudstone, siltstone and sandstone (57%) and granite (BGS class: felsic rock) (43%). Granite areas tend to have higher radon, and granite-built homes are tough but can suffer driven-rain penetration through joints.
Source: BGS 625k
Ground stability
The BGS GeoSure 5 km hexagon covering St Dennis 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
When St Dennis's homes were built
St Dennis LSOAs with 2025 sales. VOA, Mar 2025.
Selling in St Dennis?
Selling a home in St Dennis? Last year's medians ran: semi-detached £206,250, terraced £172,500. Every home is different, which is why our market appraisal is in person, and free.
Need an EPC in St Dennis? EPCs in St Dennis. Request a quote for your sale or let.
Places near St Dennis
- Foxhole 3.4 km · £195,000
- Fraddon 3.9 km · £262,500
- Roche 4.2 km · £207,500
- St Stephen 4.7 km · £263,750
- Bugle 6.4 km · £210,750
- St Columb Major 6.9 km · £240,000
All St Austell and Newquay constituency places · All Cornwall places
St Dennis survey questions
How much do houses cost in St Dennis?
Based on HM Land Registry Price Paid Data, 24 homes sold in St Dennis in 2025 with a median price of £205,500 (down 4% on 2024's £215,000). The most common type sold was terraced (42% of sales).
Which survey do I need for a house in St Dennis?
We carry out RICS Level 2 and Level 3 surveys. Which you need depends on the age and type of the house. Roughly 34% of St Dennis's homes pre-date 1919. 1 listed building in and around St Dennis. The house itself decides it, so use the chooser or ask us.
Is St Dennis in a radon Affected Area?
Largely, yes. The central square is class 6, meaning 30% or more of homes are estimated above the Action Level, and 100% of checked postcodes are affected.
Does St Dennis flood?
It depends on the street: 0 of 19 sampled postcodes fall in Flood Zone 2 or 3 (0 in Zone 3). Check the exact address for surface water too.
Do I need a mining search when buying in St Dennis?
Usually, yes. Mining searches are standard for Cornish purchases. Your conveyancer orders it; a mundic test is a separate check on pre-1950 concrete.
How do I get a survey quote in St Dennis?
Use the online quote on Survey Booker: enter the St Dennis address and pick Level 2 or Level 3.