20 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
About 20 Empire House
20 Empire House is a two-bedroom mid-terrace house in Cardiff (CF10 5LR). It has a recorded floor area of 55 m² (around 592 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2024) shows an E (score 39), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since January 2014. Between certificates, window efficiency went from Very Poor to Average; while wall efficiency dropped from Very Good to Very Poor. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on electricity. At 55 m² this is the 9th smallest of 36 units on EPC record in the building, where floor areas span 39–126 m². The building's EPC ratings span F to B across 36 units on file.
At 55 m² it's 25.7% smaller than the typical home in the postcode (74 m² median across 35 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). 13 years since the last transfer (January 2014). Today's modelled estimate of £170,000 is 13.3% above the 2014 sale price.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 6 October 2034
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Window efficiency improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
20 Empire House has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£170,000
Modelled from EPC, postcode comparables.
£150,000
Recorded with HM Land Registry.
Sales timeline
22 January 2014Most recent
£150,000
Median price across the last 5 sales in CF10 5LR: £275,000 (2023–2019).
Nearby sales in CF10 5LR
16 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
Sold Jun 2023
£125,00018 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
Sold Oct 2020
£254,60035 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
Sold Jan 2020
£275,0002 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
Sold Dec 2019
£295,0003 Empire House, Mount Stuart Square, Cardiff, CF10 5LR
Sold Aug 2019
£300,000
Versus other Mount Stuart Square homes
Years Held for 20 Empire House runs comfortably ahead of the street norm.
Price per m²
£2,727
Street avg £2,790
Floor Area
55 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.7 t/year
Street avg 2.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
485/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Nat West Building — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







