Older, solid-walled homes
Mullion has a large older stock (17% pre-1919). Budget for the things old houses need: repointing, chimney work, timber repairs and sorting out unsuitable modern coatings.
Source: VOA, Mar 2025
Surveyors · Mullion, Cornwall
Surveyors in Mullion
Home surveys in Mullion: the local risks, the price picture and the right survey level, from a surveyor-led Cornwall practice.
Our suggestion for Mullion
Level 2 Home Survey (Level 3 for older or altered homes)
Much of Mullion was built after 1919, so a Level 2 Home Survey suits most buyers. Go for a Level 3 instead if you're buying something pre-1919, listed, or in need of work.
- Roughly 17% of Mullion's homes pre-date 1919.
- 12 listed buildings in and around Mullion, 2 of them Grade I or II*.
Mullion market snapshot
In 2025, 37 homes sold in Mullion at a median price of £315,000, down 21% on 2024's £400,000.
- Median price, 2025
- £315,000
- Sales, 2025
- 37
- Median vs 2024
- -21.2%
- Leasehold share
- 0%
- Residents, Census 2021
- 2,148
| Type | Median |
|---|---|
| detached | £447,500 |
| semi-detached | £230,000 |
| terraced | £285,000 |
Sales mix: detached 49%, semi-detached 30%, terraced 22%. TR12. HM Land Registry, 2025, ONS built-up area. Residents: Mullion built-up area, ONS Census 2021.
What to look out for when buying in Mullion
Listed buildings
Historic England lists 12 buildings in and around Mullion, including Church Of St Mellanus (Grade I); Parc Venton (Grade II*). If the home you're buying is listed, alterations (even past ones) may have needed listed building consent; ask for the paperwork.
List entries: Church Of St Mellanus · Parc Venton
Source: Historic England
Flood risk (rivers and sea)
Only 0 of the 22 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 Mullion is class 4: an estimated 5 to 10% 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
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 Mullion the bedrock is hornblende schist (74%) and mudstone, siltstone and sandstone (26%). 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
Coastal exposure
Being about 0.9 km from the coast, homes here take the weather; inspect pointing, render and roof fixings closely.
Source: Natural Earth
When Mullion's homes were built
Mullion LSOAs with 2025 sales. VOA, Mar 2025.
Selling in Mullion?
Thinking of selling in Mullion? 2025 medians by type: detached £447,500, semi-detached £230,000, terraced £285,000. Your house isn't an average, so we come and look: the appraisal is free.
Need an EPC in Mullion? EPCs in Mullion. Request a quote for your sale or let.
Places near Mullion
- Ruan Minor 5.7 km · £365,000
- Porthleven 8.4 km · £362,500
- Helston 8.5 km · £262,500
- Constantine 11.1 km · £352,500
- Praa Sands 13.4 km · £410,000
- Falmouth 18.3 km · £330,000
Also covering: Coverack, Lizard. We survey these places too; they don't have a page of their own.
Mullion survey questions
How much do houses cost in Mullion?
Based on HM Land Registry Price Paid Data, 37 homes sold in Mullion in 2025 with a median price of £315,000 (down 21% on 2024's £400,000). The most common type sold was detached (49% of sales).
Which survey do I need for a house in Mullion?
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 Mullion's homes pre-date 1919. 12 listed buildings in and around Mullion, 2 of them Grade I or II*. If in doubt, the chooser on our survey page takes a minute.
Is Mullion in a radon Affected Area?
For most of Mullion, yes (100% of checked postcodes). At the centre, 5 to 10% of homes are estimated to exceed the Action Level (class 4).
Does Mullion flood?
It depends on the street: 0 of 22 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 Mullion?
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 Mullion?
Online, in a couple of minutes: Survey Booker gives an instant price for Mullion homes. You can also call us.