Basement Flat, 12 Lower Market Street, Penryn, TR10 8BG
About Basement Flat
Basement Flat is a one-bedroom detached house in Penryn (TR10 8BG). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1900-1929 and council tax band A. Tenure is freehold. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (September 2025) shows an E (score 47), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since September 2015. Between certificates, hot-water efficiency dropped from Average to Very Poor and lighting dropped from Average to Poor. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on electricity.
Across 1999–2020, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £160,000 sits 60% above the 2020 sale of £100,000. Most recent transfer: December 2020 at £100,000. Across the public record there are 4 sales, relatively high churn for a single property.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Building
- TenureFreehold
- Listed buildingYes
Energy performance
Basement Flat's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, is a listed building, and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Basement Flat has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
Price for Basement Flat has grown more than fourfold since the 1999 starting point.
£160,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 21 years.
£100,000
Growth on file: 6.9% per year over 21 years.
Sales timeline
18 December 2020Most recent
£100,000
+58.7%over 4 years30 March 2016
£63,000
+125.0%over 15 years4 June 2000
£28,000
+16.7%over 11 months20 June 1999
£24,000
Median price across the last 5 sales in TR10 8BG: £170,000 (2025–2022).
Nearby sales in TR10 8BG
Flat 3, 4 Lower Market Street, Penryn, TR10 8BG
Sold Oct 2025
£170,00014a, Lower Market Street, Penryn, TR10 8BG
Sold Feb 2023
£224,000Flat, 24 Lower Market Street, Penryn, TR10 8BG
Sold Nov 2022
£370,00022a, Lower Market Street, Penryn, TR10 8BG
Sold May 2022
£104,750Flat 1, 4 Lower Market Street, Penryn, TR10 8BG
Sold Nov 2021
£118,000
Versus other Lower Market Street homes
CO₂ Emissions for Basement Flat runs comfortably ahead of the street norm.
Price per m²
£1,923
Street avg £2,502
Floor Area
52 m²
Street avg 73 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
0.9 t/year
Street avg 4.1 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Kings Arms — bus stop.
Closest school
0.9 km
Penryn Primary Academy. 11 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.8dB

Night-time· 23:00 – 07:00
39.2dB







