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1 Clos Thomas, Old St Mellons, Cardiff, CF3 6YR

EPC B
Property type
Detached
Bedrooms
3
Bathrooms
2
Floor area
78 m²
840 sq ft
Energy rating
B
Score 81
Overview

About 1 Clos Thomas

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

1 Clos Thomas is a three-bedroom detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6YR). It has a recorded floor area of 78 m² (around 840 sq ft). The latest certificate (October 2020) returns a B (score 81), comfortably above the UK average. The recommended improvements would push it to A (score 93).

It changed hands recently, sold August 2025 for £340,000. Across 2021–2025, sale prices on this property compounded at 5.8% per year. On a £-per-square-foot basis, the last sale (£405/sq ft) was about 36% above the typical sold price in the postcode.

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

  • Bedrooms3
  • Bathrooms2
  • Open-plan layoutYes
  • Dining roomYes
  • CloakroomYes
  • EnsuiteYes

Outside

  • Private gardenRear
  • GarageIntegral
Before you decide

Everything you need to know about 1 Clos Thomas

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

Larger development activity nearby

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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.

1 Clos Thomas's carbon output is low for the local stock.

EPC Rating

A
B
B81
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.4 t/year
Occupancy
—
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Detached HouseEPC B

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

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Planning

Planning history

Applications and permits filed against 1 Clos Thomas, Old St Mellons, Cardiff, CF3 6YR, sourced from the PlanIt planning register.

1 Clos Thomas has no planning applications on record.

1

But the area is active

1 notable application 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.
Current estimate

£322,000

Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 5 years.

See how we calculated this
Last sold (2025)

£340,000

Growth on file: 5.8% per year over 5 years.

Sales timeline

  1. 14 August 2025Most recent

    £340,000

    +28.8%over 4 years

  2. 5 February 2021

    £263,995

Median price across the last 5 sales in CF3 6YR: £285,000 (2025–2024).

On the street

Versus other Clos Thomas homes

Four headline reads against 44 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 1 Clos Thomas runs comfortably ahead of the street norm.

Price per m²

£4,359

Street avg £3,252

Strongly above

Floor Area

78 m²

Street avg 87 m²

On par

CO₂ Emissions

1.4 t/year

Street avg 1.4 t/year

On par

Years Held

1 years

Street avg 5 years

Strongly below
Before you decide

Everything you need to know about 1 Clos Thomas

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

Larger development activity nearby

Pick your report · every report is £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.
£322k

1 Church Road, Old St Mellons

CF3 6YA

3 bed2 bath
£313k

1 Heol Swatridge, Old St Mellons

CF3 6AP

3 bed2 bath
£332k

1 Rhodfa Hughes, Old St Mellons

CF3 6YY

3 bed2 bath
£334k

1 Rogers Avenue, Old St Mellons

CF3 6AL

3 bed2 bath
£343k

1 Stryd Boyd, Old St Mellons

CF3 6YS

3 bed3 bath
£360k

1 Rees Drive, Old St Mellons

CF3 6AS

3 bed2 bath
£285k

1 Potter Street, Old St Mellons

CF3 6AR

3 bed2 bath
£284k

1 Bridge Terrace, Michaelston Y Fedw

CF3 6YZ

3 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

Reported crime in the wider district is trending notably upward year-on-year.

Crime

3/mo

Rising year-on-year across the wider district.

Nearest stop

0.2 km

Rogers Avenue — 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 1 Clos Thomas, Old St Mellons, Cardiff, CF3 6YR. Each answer is also embedded as structured data for search engines.