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

EPC B

Estimated value

£307,000

  • Since the 2020 sale (£252,995)+21%
  • Against CF3 6AQ's recent median (£255,000)+20%

Newest record on this page: March 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Floor area
99 m²
1066 sq ft
Energy rating
B
Score 83
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£307,000

  • Against its 2020 sale (£252,995)+21%
  • Against CF3 6AQ's recent median (£255,000)+20%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 2 Heol Williams is modelled from its 99 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 6AQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    99 m² from the EPC lodged in September 2020

  • Sales of this home

    1 sale recorded, the latest in 2020

  • Recent sales in CF3 6AQ

    5 sales, median £255,000 (2026–2025)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 24 November 2020Most recent

    £252,995

Median price across the last 5 sales in CF3 6AQ: £255,000 (2026–2025).

Risks

What this page doesn't show

1 potential issue has already been flagged for 2 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 2 Heol Williams

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

2 Heol Williams is a semi-detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6AQ). It has a recorded floor area of 99 m² (around 1066 sq ft). The latest certificate (September 2020) returns a B (score 83), comfortably above the UK average. The recommended improvements would push it to A (score 94).

At 99 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 £307,000 is 21.3% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£237/sq ft) was about 17.5% below the postcode norm. Last sale on file: £252,995 in November 2020.

Before you decide

Everything you need to know about 2 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.

2 Heol Williams's carbon output is low for the local stock.

Current Certificate
Sept 2020

EPC Rating

A
B
B83
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.5 t/year
Occupancy
—

Certificate validity

Valid until 14 September 2030

3 years remaining
Planning

Planning history

Applications and permits filed against 2 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ, sourced from the PlanIt planning register.

2 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.

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.

Price per m² for 2 Heol Williams lags the street by a wide margin.

Price per m²

£2,556

Street avg £3,166

Strongly below

Floor Area

99 m²

Street avg 80 m²

Strongly above

CO₂ Emissions

1.5 t/year

Street avg 1.3 t/year

Below

Years Held

6 years

Street avg 5 years

On par
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

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Rogers Avenue — bus stop.

Nearest stops

  • Rogers AvenueBus stop101m
  • Heol Booths 1Bus stop138m
  • Heol Booths 2Bus stop155m
  • Mortimer AvenueBus stop164m

Most reported crime locally

  • Violence & Sexual Offences1,550 reports36%
  • Anti-social Behaviour627 reports14%
  • Public Order468 reports11%
  • Criminal Damage & Arson424 reports10%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Semi-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

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£311k

1 Heol Swatridge, Old St Mellons

CF3 6AP

3 bed2 bath
£302k

1 Potter Street, Old St Mellons

CF3 6AR

3 bed2 bath
£296k

1 Bridge Terrace, Michaelston Y Fedw

CF3 6YZ

3 bed
£294k

1 Druidstone House, Druidstone Road, Old St Mellons

CF3 6XF

2 bed1 bath
£327k

1 Heol Booths, Old St Mellons

CF3 6WA

£280k

1 Lewis Crescent, Old St Mellons

CF3 6YQ

£278k

1 Ffordd Crabtree, Old St Mellons

CF3 6AN

£340k

1 Rogers Avenue, Old St Mellons

CF3 6AL

3 bed2 bath

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 2 Heol Williams is modelled from its 99 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 6AQ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 2 Heol Williams. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 2 Heol Williams was lodged in September 2020 at band B and is valid until September 2030. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 2 Heol Williams. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF3 6AQ.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 2 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ. Each answer is also embedded as structured data for search engines.

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