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1 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ

EPC B
Property type
Detached
Floor area
113 m²
1216 sq ft
Energy rating
B
Score 83
Overview

About 1 Heol Williams

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

1 Heol Williams is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6AQ). It has a recorded floor area of 113 m² (around 1216 sq ft). The latest certificate (July 2019) returns a B (score 83), comfortably above the UK average. The recommended improvements would push it to A (score 93).

At 113 m² the property is well over the postcode median (71 m² across 57 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £382,000 is 27.3% above the 2019 sale price. Most recent transfer: July 2019 at £300,000.

Before you decide

Everything you need to know about 1 Heol Williams

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.

EPC Rating

A
B
B83
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.7 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.

From £595 · Includes VAT

Planning

Planning history

Applications and permits filed against 1 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ, sourced from the PlanIt planning register.

1 Heol Williams 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.

1 Heol Williams valuation sits well clear of the typical sold price in this postcode.

Current estimate

£382,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2019)

£300,000

Recorded with HM Land Registry.

Sales timeline

  1. 25 July 2019Most recent

    £300,000

Median price across the last 5 sales in CF3 6AQ: £237,500 (2025–2025).

On the street

Versus other Heol Williams homes

Four headline reads against 57 similar houses on this street, drawn from the latest EPC and Land Registry data.

1 Heol Williams outperforms the street on floor area by a wide margin.

Price per m²

£2,655

Street avg £3,143

Below

Floor Area

113 m²

Street avg 80 m²

Strongly above

CO₂ Emissions

1.7 t/year

Street avg 1.3 t/year

Strongly below

Years Held

7 years

Street avg 5 years

Above
Before you decide

Everything you need to know about 1 Heol Williams

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.
£385k

1 Began Road, Old St Mellons

CF3 6XJ

3 bed1 bath
£386k

1 Cefn Mably Park, Michaelston Y Fedw

CF3 6AA

£360k

1 Rees Drive, Old St Mellons

CF3 6AS

3 bed2 bath
£360k

1 Rhodfa Leonard, Old St Mellons

CF3 6YW

£343k

1 Stryd Boyd, Old St Mellons

CF3 6YS

3 bed3 bath
£334k

1 Rogers Avenue, Old St Mellons

CF3 6AL

3 bed2 bath
£332k

1 Rhodfa Hughes, Old St Mellons

CF3 6YY

3 bed2 bath
£322k

1 Church Road, Old St Mellons

CF3 6YA

3 bed2 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

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

0.1 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 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ. Each answer is also embedded as structured data for search engines.