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Get started15 Boswergy is a two-bedroom detached house in Penzance (TR18 4RL). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (November 2025) shows a C (score 69), just inside the C band. When first surveyed in December 2012 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency dropped from Good to Average and window efficiency dropped from Good to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 5.7% per year against 0% for the wider region. Today's modelled estimate of £326,000 is 34.4% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£317/sq ft) was about 20.3% above the typical sold price in the postcode. One planning record on file: an annexe approved in 2022. Past consents include an annexe, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Most recent transfer: July 2018 at £242,500.
The EPC has just been inspected, so the rating reflects current condition.
Construction of annexe and associated works
15 Boswergy valuation sits well clear of the typical sold price in this postcode.
£326,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.7% per year over 5 years.
£242,500
Growth on file: 5.7% per year over 5 years.
On epc rating, 15 Boswergy stands well clear of the street.
Price per m²
£3,415
Street avg £3,228
Floor Area
71 m²
Street avg 71 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Trenoweth Road — bus stop.

Daytime· 07:00 – 23:00
50.0dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
12 July 2018Most recent
£242,500
+31.1%over 4 years28 August 2013
£185,000
Median price across the last 5 sales in TR18 4RL: £262,500 (2024–2020).
CO₂ Emissions
2.3 t/year
Street avg 4.1 t/year
TR18 4JY
Closest school
0.4 km
Alverton Primary School. 11 schools nearby.
Night-time· 23:00 – 07:00
40.9dB
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