Surveyors · Penwithick, Cornwall
Buying in Penwithick? Here's what the public data says about its homes, and which RICS survey suits them.
Our suggestion for Penwithick
Penwithick is a mix: Level 2 for newer homes, Level 3 for the older ones. For a pre-1919, listed, extended or altered home, choose a Level 3. For a conventional home in reasonable condition, a Level 2 is usually enough.
The median Penwithick sale in 2025 was £174,500, across 25 sales (down 5% on 2024's £183,375).
| Type | Median |
|---|---|
| detached | £207,250 |
| semi-detached | £180,000 |
Sales mix: semi-detached 60%, detached 24%, terraced 8%, flat/maisonette 8%. PL26. HM Land Registry, 2025, ONS built-up area. Residents: Penwithick built-up area, ONS Census 2021.
26% of the housing stock in these neighbourhoods dates from before 1919 and 18% 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
Only 0 of the 15 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
The 1 km radon map square at the centre of Penwithick 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
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 Penwithick the bedrock is granite (BGS class: felsic rock) (100%). Granite brings radon with it, and granite walls, though durable, can let wind-driven rain through open joints.
Source: BGS 625k
The BGS GeoSure 5 km hexagon covering Penwithick 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
Penwithick LSOAs with 2025 sales. VOA, Mar 2025.
Selling a home in Penwithick? Last year's medians ran: detached £207,250, semi-detached £180,000. Every home is different, which is why our market appraisal is in person, and free.
Need an EPC in Penwithick? EPCs in Penwithick. Request a quote for your sale or let.
All St Austell and Newquay constituency places · All Cornwall places
Based on HM Land Registry Price Paid Data, 25 homes sold in Penwithick in 2025 with a median price of £174,500 (down 5% on 2024's £183,375). The most common type sold was semi-detached (60% 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: 26% (VOA). If in doubt, the chooser on our survey page takes a minute.
Yes, mostly: 100% of the 15 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 15 postcodes in Penwithick 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.
Yes in practice: lenders expect one across Cornwall. The conveyancer arranges it.
Use the online quote on Survey Booker: enter the Penwithick address and pick Level 2 or Level 3.