Flat 3, 97 St Mary Street, Cardiff, CF10 1DX
About Flat 3
Flat 3 is a mid-terrace house in Cardiff (CF10 1DX). It has a recorded floor area of 44 m² (around 474 sq ft) and construction records dating it to 1930-1949. The latest certificate (February 2019) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (January 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. Main heating runs on electricity. At 44 m² this is the 2nd smallest of 16 units on EPC record in the building, where floor areas span 39–128 m². The building's EPC ratings span E to C across 16 units on file.
At 44 m² it sits well below the postcode median (90 m² across 25 EPCs), making it one of the more compact homes locally.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 3 has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Flat 3 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£160,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 1 sales in CF10 1DX: £9,035,388 (2021–2021).
Nearby sales in CF10 1DX
Versus other St Mary Street homes
Flat 3 is notably below the street on floor area.
EPC Rating
59 (D)
Street avg 58 (D)
Floor Area
44 m²
Street avg 84 m²
CO₂ Emissions
2.5 t/year
Street avg 3.9 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Royal Hotel KJ — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







