27 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
About 27 St Stephens Mansions
27 St Stephens Mansions is a two-bedroom mid-terrace house in Cardiff (CF10 5LQ). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (April 2026) shows a D (score 64), on the cusp of jumping into the C band. Earlier certificates rated it C (January 2012); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Good to Very Poor and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 66 m² this is the 20th 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. Other recorded features include a balcony.
It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Last changed hands 13 years ago, in September 2013. Today's modelled estimate of £185,000 is 21.7% above the 2013 sale price.
What this property has
Inside
- Bedrooms2
- Dining roomYes
- EnsuiteYes
Outside
- ParkingAllocated
- BalconyYes
Energy performance
27 St Stephens Mansions's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 13 April 2036
Property Improvements
Changes detected from historical EPC data
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 £820 · Includes VAT
Planning history
27 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
27 St Stephens Mansions's sale-price growth has lagged the wider UK trajectory across its history on file.
£185,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.1% per year over 10 years.
£152,000
Growth on file: 0.1% per year over 10 years.
Sales timeline
12 September 2013Most recent
£152,000
-9.5%over 9 years18 May 2004
£168,000
+12.0%over 10 months24 July 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
On co₂ emissions, 27 St Stephens Mansions stands well clear of the street.
Price per m²
£2,303
Street avg £2,306
Floor Area
66 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
0.7 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 Adelaide Street
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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.







