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23 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ

EPC B
Property type
Mid terrace
Floor 02
Habitable rooms
3
From EPC
Floor area
76 m²
818 sq ft
Energy rating
B
Score 82
Council tax
Band E
Tenure
Private Rental
Overview

About 23 St Stephens Mansions

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

23 St Stephens Mansions is a mid-terrace house in Cardiff (CF10 5LQ). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (January 2023) returns a B (score 82), comfortably above the UK average. Main heating runs on electricity. At 76 m² this is the 38th 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, with this unit at the top.

Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). Last changed hands 10 years ago, in May 2016. Across 2003–2016, sale prices on this property compounded at -0.6% per year. Today's modelled estimate of £182,000 is 19.3% above the 2016 sale price.

Before you decide

Everything you need to know about 23 St Stephens Mansions

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · from £14.99

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate
Jan 2023

EPC Rating

A
B
B82
C
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Average
Windows
Good
CO2 Emissions
1.7 t/year
Occupancy
Rented

Certificate validity

Valid until 11 January 2033

6 years remaining
SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st century2nd Floor FlatEPC BNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 23 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ, sourced from the PlanIt planning register.

23 St Stephens Mansions has no planning applications on record.

5

But the area is active

5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

23 St Stephens Mansions's sale-price growth has lagged the wider UK trajectory across its history on file.

Current estimate

£182,000

Modelled from EPC, postcode comparables and a sale-price growth of -0.6% per year over 13 years.

See how we calculated this
Last sold (2016)

£152,500

Growth on file: -0.6% per year over 13 years.

Sales timeline

  1. 8 May 2016Most recent

    £152,500

    -7.6%over 12 years

  2. 31 July 2003

    £165,000

Median price across the last 5 sales in CF10 5LQ: £195,000 (2026–2025).

On the street

Versus other Mount Stuart Square homes

Four headline reads against 62 similar flats on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 23 St Stephens Mansions runs comfortably ahead of the street norm.

Price per m²

£2,007

Street avg £2,310

Strongly below

Floor Area

76 m²

Street avg 72 m²

Above

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

1.7 t/year

Street avg 2.2 t/year

Strongly above
Before you decide

Everything you need to know about 23 St Stephens Mansions

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£184k

1 Clarence Court, Pomeroy Street

CF10 5GT

1 bed1 bath
£190k

1 Adelaide Street

CF10 5BS

3 bed
£172k

1 Bute House, Anchor Works, Dumballs Road

CF10 5LT

£200k

1 Christina Street

CF10 5HL

£201k

1 Judkin Court, Heol Tredwen

CF10 5AU

3 bed2 bath
£203k

1 Angelina Street

CF10 5HX

£163k

1 Hodges Square

CF10 5JT

£160k

1 Carlotta Way

CF10 5FY

2 bed
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Full Cardiff report

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.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 23 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ. Each answer is also embedded as structured data for search engines.