Surveyors · St Agnes, Cornwall
RICS Level 2 and Level 3 surveys for homes in St Agnes, Cornwall, with local data on age, flood, radon and listed buildings.
Our suggestion for St Agnes
Choose by age in St Agnes: a Level 2 for post-war homes, a Level 3 for period ones. 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.
The median St Agnes sale in 2025 was £441,500, across 58 sales (down 16% on 2024's £525,000).
| Type | Median |
|---|---|
| detached | £545,000 |
| semi-detached | £432,500 |
| terraced | £288,000 |
Sales mix: detached 57%, terraced 29%, semi-detached 10%, flat/maisonette 3%. TR5. HM Land Registry, 2025, ONS built-up area. Residents: St Agnes built-up area, ONS Census 2021.
32% of the housing stock in these neighbourhoods dates from before 1919 and 32% from before 1900. Expect solid walls rather than cavities, so damp diagnosis needs care: cement renders, plastic paints and raised ground levels trap moisture in walls that were designed to breathe.
Source: VOA, Mar 2025
Historic England lists 72 buildings in and around St Agnes, including Church Of St Agnes (Grade II*). On a listed home, like-for-like repairs with traditional materials are the rule; your surveyor should flag anything that looks unconsented.
List entries: Church Of St Agnes
Source: Historic England
Conservation area here: St Agnes. Inside a conservation area, things like replacement windows and roof changes can need permission, which matters if you're planning work.
Source: planning.data.gov.uk
1 of 43 postcodes checked are in Flood Zone 2 or 3, so most of St Agnes sits outside the river and sea flood zones. Low-lying streets and surface water can still catch people out.
Source: Environment Agency
The 1 km radon map square at the centre of St Agnes 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. Check whether the house has a radon sump or membrane, and if there's no test result, plan one in the first year.
Source: UKHSA/BGS
St Agnes lies inside the Cornwall and West Devon Mining Landscape World Heritage Site. Cornwall's mines left shafts and workings that aren't all mapped, which is why a mining search comes as standard here; pre-1950 concrete homes also raise the mundic question.
Source: UNESCO WHS; RICS
Under most of St Agnes the bedrock is mudstone, siltstone and sandstone (95%). 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
The BGS GeoSure 5 km hexagon covering St Agnes 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
St Agnes is within about 1.2 km of the open coast. Salt air shortens the life of metal fixings, window frames and render, and wind-driven rain finds weak spots in walls.
Source: Natural Earth
St Agnes LSOAs with 2025 sales. VOA, Mar 2025.
For St Agnes sellers, 2025 medians were detached £545,000, semi-detached £432,500, terraced £288,000. Every home is different, which is why our market appraisal is in person, and free.
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Based on HM Land Registry Price Paid Data, 58 homes sold in St Agnes in 2025 with a median price of £441,500 (down 16% on 2024's £525,000). The most common type sold was detached (57% of sales).
We carry out RICS Level 2 and Level 3 surveys. Which you need depends on the age and type of the house. Pre-1919 share of local housing: 32% (VOA). 72 listed buildings in and around St Agnes, 1 of them Grade I or II*. If in doubt, the chooser on our survey page takes a minute.
Yes, mostly: 100% of the 43 sold postcodes we checked are in an Affected Area, and the central 1 km square is class 6 (30% or more of homes above the Action Level).
Of 43 postcodes in St Agnes with 2025 sales, 1 have their centre in Flood Zone 2 or 3 (rivers and sea) and 1 in Zone 3. Surface water isn't included.
Almost always. Being inside the mining World Heritage Site, St Agnes has obvious history; your solicitor will order a mining search as part of the usual Cornish searches.
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