27 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
About 27 St James Mansions
27 St James Mansions is a two-bedroom mid-terrace house in Cardiff (CF10 5LG). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (October 2024) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since October 2014. Between certificates, lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Poor to Very Poor. Main heating runs on electricity. At 69 m² this is the 18th smallest of 24 units on EPC record in the building, where floor areas span 39–92 m². The building's EPC ratings span D to B across 24 units on file.
At 69 m² it's 27.8% larger than the typical home in the postcode (54 m² median across 23 EPCs). Last changed hands 11 years ago, in March 2015. Today's modelled estimate of £166,000 is 20.3% above the 2015 sale price.
What this property has
Inside
- Bedrooms2
Everything you need to know about 27 St James Mansions
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Certificate validity
Valid until 12 October 2034
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
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
27 St James Mansions 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
27 St James Mansions's sale-price growth has lagged the wider UK trajectory across its history on file.
£166,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.2% per year over 13 years.
£138,000
Growth on file: 0.2% per year over 13 years.
Sales timeline
20 March 2015Most recent
£138,000
-13.2%over 7 years23 May 2007
£159,000
+17.8%over 4 years27 June 2002
£135,000
Median price across the last 5 sales in CF10 5LG: £155,000 (2020–2015).
Nearby sales in CF10 5LG
20 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
Sold Oct 2020
£155,00019 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
Sold Sept 2020
£157,0005 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
Sold Dec 2019
£140,0008 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
Sold Feb 2017
£165,00016 St James Mansions, Mount Stuart Square, Cardiff, CF10 5LG
Sold Jul 2015
£139,000
Versus other Mount Stuart Square homes
Years Held for 27 St James Mansions lags the street by a wide margin.
Price per m²
£2,000
Street avg £2,144
Floor Area
69 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.1 t/year
Everything you need to know about 27 St James Mansions
The true value, the hidden risks and the full sale history, in one report.
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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
0.2 km
Dumballs Road Bottom — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.