Older, solid-walled homes
With 17% 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 Austell, Cornwall
Surveyors in St Austell
Buying in St Austell? Here's what the public data says about its homes, and which RICS survey suits them.
Our suggestion for St Austell
Level 2 Home Survey (Level 3 for older or altered homes)
For most St Austell homes, a Level 2 Home Survey is the sensible starting point. Go for a Level 3 instead if you're buying something pre-1919, listed, or in need of work.
- Roughly 17% of St Austell's homes pre-date 1919.
- 106 listed buildings in and around St Austell, 7 of them Grade I or II*.
St Austell market snapshot
£238,950 was the middle price of the 347 St Austell homes sold in 2025; that's down 10% on 2024's £265,000.
- Median price, 2025
- £238,950
- Sales, 2025
- 347
- Median vs 2024
- -9.8%
- Leasehold share
- 14%
- Residents, Census 2021
- 24,361
| Type | Median |
|---|---|
| detached | £300,000 |
| semi-detached | £240,000 |
| terraced | £197,500 |
| flat/maisonette | £100,141 |
Sales mix: detached 34%, semi-detached 27%, terraced 27%, flat/maisonette 12%. PL25. HM Land Registry, 2025, ONS built-up area. Residents: St Austell built-up area, ONS Census 2021.
What to look out for when buying in St Austell
Listed buildings
Historic England lists 106 buildings in and around St Austell, including Holy Trinity Church (Grade I); Church Of St John (Methodist) (Grade II*); Charlestown Harbour, Comprising The Inner Dock And Quays; Outer Basin And Piers; Eastern Breakwater; And The Eastern Wall (Grade II*). Listed status affects windows, renders and repairs, so check what consent exists for work already done.
List entries: Holy Trinity Church · Church Of St John (Methodist) · Charlestown Harbour, Comprising The Inner Dock And Quays; Outer Basin And Piers; Eastern Breakwater; And The Eastern Wall
Source: Historic England
Conservation areas
Conservation areas here: Charlestown, St Austell. 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)
0 of 100 postcodes checked are in Flood Zone 2 or 3, so most of St Austell sits outside the river and sea flood zones. Low-lying streets and surface water can still catch people out.
Source: Environment Agency
Radon
The 1 km radon map square at the centre of St Austell 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. A three-month radon test is cheap, and fixes (often a sump or better underfloor ventilation) are well understood.
Source: UKHSA/BGS
Mining and mundic
St Austell lies inside the Cornwall and West Devon Mining Landscape World Heritage Site. Two Cornish checks to expect: a mining search from your conveyancer, and, for concrete-block houses from before about 1950, a mundic screening test.
Source: UNESCO WHS; RICS
Ground and building stone
Under most of St Austell the bedrock is mudstone, siltstone and sandstone (96%). 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 St Austell 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 Austell's homes were built
St Austell LSOAs with 2025 sales. VOA, Mar 2025.
Selling in St Austell?
Selling a home in St Austell? Last year's medians ran: detached £300,000, semi-detached £240,000, terraced £197,500, flat/maisonette £100,141. A free, in-person appraisal tells you where yours sits.
Need an EPC in St Austell? EPCs in St Austell. Request a quote for your sale or let.
Places near St Austell
- Carlyon Bay 3.2 km · £528,500
- Penwithick 3.9 km · £174,500
- Foxhole 5.4 km · £195,000
- St Blazey 5.9 km · £208,500
- Bugle 6.4 km · £210,750
- St Stephen 7.1 km · £263,750
Also covering: Duporth. We survey these places too; they don't have a page of their own.
All St Austell and Newquay constituency places · All Cornwall places
St Austell survey questions
How much do houses cost in St Austell?
Based on HM Land Registry Price Paid Data, 347 homes sold in St Austell in 2025 with a median price of £238,950 (down 10% on 2024's £265,000). The most common type sold was detached (34% of sales).
Which survey do I need for a house in St Austell?
We carry out RICS Level 2 and Level 3 surveys. A Level 2 Home Survey suits most modern homes here; older or altered houses need a Level 3. Roughly 17% of St Austell's homes pre-date 1919. 106 listed buildings in and around St Austell, 7 of them Grade I or II*. Tell us the age and type of the house and we'll confirm.
Is St Austell 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 Austell flood?
Of 100 postcodes in St Austell with 2025 sales, 0 have their centre in Flood Zone 2 or 3 (rivers and sea) and 0 in Zone 3. Surface water isn't included.
Do I need a mining search when buying in St Austell?
Usually, yes. Mining searches are standard for Cornish purchases and St Austell is within the Mining Landscape World Heritage Site. Your conveyancer orders it; a mundic test is a separate check on pre-1950 concrete.
How do I get a survey quote in St Austell?
Click 'Get a survey quote' on this page; Survey Booker prices your St Austell survey instantly and lets you book.