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

3 sales on record
Property type
Mid terrace
Floor 05
Bedrooms
2
Bathrooms
2
Floor area
68 m²
732 sq ft
Energy rating
C
Score 78
Council tax
Band E
Tenure
Owner Occupied
Overview

About 55 St Stephens Mansions

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

55 St Stephens Mansions is a two-bedroom mid-terrace house in Cardiff (CF10 5LQ). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (February 2025) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (October 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Main heating runs on electricity. At 68 m² this is the 24th 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.

Last sold in September 2017, so it's been off the market for around 9 years.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms2
  • Bathrooms2
  • Dining roomYes
  • EnsuiteYes

Outside

  • ParkingAllocated
  • BalconyYes

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 55 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
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(1 of 3)
Feb 2025

EPC Rating

A
B
C
C78
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Poor
Windows
Average
CO2 Emissions
1.9 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 24 February 2035

8 years remaining

Property Improvements

Changes detected from historical EPC data

Mar 2013from Oct 2009
EPC improved fromB81toC80
Feb 2025from Mar 2013
Hot Water
AveragePoor

Hot water efficiency decreased

Low Energy Lighting
44%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st centuryMid Floor FlatEPC CNo 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 55 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ, sourced from the PlanIt planning register.

55 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.

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

Current estimate

£185,000

Modelled from EPC, postcode comparables and a sale-price growth of 0.5% per year over 14 years.

See how we calculated this
Last sold (2017)

£170,000

Growth on file: 0.5% per year over 14 years.

Sales timeline

  1. 21 September 2017Most recent

    £170,000

    +25.9%over 4 years

  2. 30 May 2013

    £135,000

    -15.1%over 9 years

  3. 30 July 2003

    £159,100

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.

55 St Stephens Mansions outperforms the street on price per m² by a wide margin.

Price per m²

£2,500

Street avg £2,302

Above

Floor Area

68 m²

Street avg 72 m²

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

1.9 t/year

Street avg 2.2 t/year

Above
Before you decide

Everything you need to know about 55 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.
£160k

1 Carlotta Way

CF10 5FY

2 bed
£227k

1 Ezel Court, Heol Glan Rheidol

CF10 5NS

2 bed2 bath
£254k

1 Empire House, Mount Stuart Square

CF10 5LR

2 bed2 bath
£184k

1 Clarence Court, Pomeroy Street

CF10 5GT

1 bed1 bath
£190k

1 Adelaide Street

CF10 5BS

3 bed
£201k

1 Judkin Court, Heol Tredwen

CF10 5AU

3 bed2 bath
£372k

1 Bute Esplanade

CF10 5BD

2 bed2 bath
£150k

1 Clarence Mews, Clarence Embankment

CF10 5GF

1 bed1 bath
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 55 St Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ. Each answer is also embedded as structured data for search engines.