Flat 1, 97 St Mary Street, Cardiff, CF10 1DX
About Flat 1
Flat 1 is a mid-terrace house in Cardiff (CF10 1DX). It has a recorded floor area of 39 m² (around 420 sq ft) and construction records dating it to 1930-1949. At 39 m² this is the smallest unit on EPC record across the building (39–128 m²). The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (February 2019) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since January 2009. Between certificates, hot-water efficiency went from Very Poor to Poor; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.
At 39 m² it sits well below the postcode median (86 m² across 26 EPCs), making it one of the more compact homes locally.
Everything you need to know about Flat 1
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 15 February 2029
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
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 1 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 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£140,000
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.
Versus other St Mary Street homes
Floor Area for Flat 1 lags the street by a wide margin.
EPC Rating
45 (E)
Street avg 59 (D)
Floor Area
39 m²
Street avg 83 m²
CO₂ Emissions
3.4 t/year
Street avg 3.7 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
485/mo
Steady 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.