91 92, Flat 6, St Mary Street, Cardiff, CF10 1DX
About 91 92
91 92 is a semi-detached house in Cardiff (CF10 1DX). It has a recorded floor area of 69 m² (around 743 sq ft) and construction records dating it to 1900-1929. At 69 m² this is the 3rd smallest of 10 units on EPC record in 91 92, where floor areas span 56–110 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (March 2022) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it C (March 2009); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. Main heating runs on electricity.
At 69 m² it's 23.3% smaller than the typical home in the postcode (90 m² median across 25 EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water system changed
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
91 92 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
91 92 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£180,000
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
On epc rating, 91 92 runs well behind the street norm.
EPC Rating
47 (E)
Street avg 58 (D)
Floor Area
69 m²
Street avg 82 m²
CO₂ Emissions
3.5 t/year
Street avg 3.8 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.







