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 71% of similar EPCs). 12 years since the last transfer (January 2014). Today's modelled estimate of £179,000 is 19.3% 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
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
£179,000
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 £2,780
Floor Area
55 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.2 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising 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.







