19 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
About 19 St Stephens Mansions
19 St Stephens Mansions is a two-bedroom mid-terrace house in Cardiff (CF10 5LQ). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 2003-2006 and council tax band E. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony. At 92 m² this is the 57th smallest of 64 units on EPC record in the building, where floor areas span 48–99 m². The building's EPC ratings span E to B across 64 units on file. The latest certificate (October 2023) shows a C (score 73). The rating has held steady at C across 2 certificates since February 2010. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 85). Main heating runs on electricity.
At 92 m² it's 29.6% larger than the typical home in the postcode (71 m² median across 63 EPCs). Across 2003–2024, sale prices on this property compounded at 1.2% per year. Most recent transfer: February 2024 at £190,000.
What this property has
Inside
- Bedrooms2
- Bathrooms2
- EnsuiteYes
Outside
- ParkingAllocated
- BalconyYes
Building
- Solar panelsYes
Energy performance
EPC Rating
Certificate validity
Valid until 22 October 2033
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system changed
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 £885 · Includes VAT
Planning history
19 St Stephens 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
19 St Stephens Mansions's sale-price growth has lagged the wider UK trajectory across its history on file.
£204,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.2% per year over 20 years.
£190,000
Growth on file: 1.2% per year over 20 years.
Sales timeline
14 February 2024Most recent
£190,000
+26.7%over 20 years28 August 2003
£150,000
Median price across the last 5 sales in CF10 5LQ: £195,000 (2026–2025).
Nearby sales in CF10 5LQ
32 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
Sold May 2026
£200,00036 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
Sold Apr 2026
£162,00053 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
Sold Jul 2025
£184,00046 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
Sold Jul 2025
£195,00020 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
Sold Jan 2025
£200,000
Versus other Mount Stuart Square homes
19 St Stephens Mansions is notably below the street on years held.
Price per m²
£2,065
Street avg £2,309
Floor Area
92 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.2 t/year
Similar properties nearby
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1 Empire House, Mount Stuart Square
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1 Carlotta Way
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1 Judkin Court, Heol Tredwen
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1 Bute Esplanade
CF10 5BD
1 Adelaide Street
CF10 5BS
1 Clarence Court, Pomeroy Street
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1 Clarence Mews, Clarence Embankment
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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
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.







