Skip to content
UK Property Looker

9 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF

EPC A1 planning record
Property type
Detached
Habitable rooms
7
From EPC
Floor area
186 m²
2002 sq ft
Energy rating
A
Score 97
Council tax
Band G
Tenure
Owner Occupied
Overview

About 9 Heol Bennett

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

9 Heol Bennett is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6AF). It has a recorded floor area of 186 m² (around 2002 sq ft), construction records dating it to 2012-2021 and council tax band G. The latest certificate (July 2025) returns an A (score 97), the top energy band on the EPC scale. When first surveyed in November 2017 the rating was B, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average.

At 186 m² the property is well over the postcode median (102 m² across 54 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. One planning record on file: an extension approved in 2018. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Today's modelled estimate of £661,000 is 49.5% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£221/sq ft) was about 15.2% below the postcode norm. 8 years since the last transfer (January 2018).

Before you decide

Everything you need to know about 9 Heol Bennett

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
Energy

Energy performance

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

9 Heol Bennett ranks among the most efficient homes in the postcode for energy use.

Current Certificate(1 of 3)
Jul 2025

EPC Rating

A
A97
B
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
2.2 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jun 2025from Nov 2017
EPC improved fromB86toA99
Hot Water
Main SystemImmersion (Off-Peak)

Hot water system changed

Jul 2025from Jun 2025
Heating Controls
Full ControlFull

Heating controls changed

Floor Insulation
UninsulatedInsulated

Floor insulation added or improved

SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st centuryDetached HouseEPC AExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,155 · Includes VAT

Planning

Planning history

Applications and permits filed against 9 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF, sourced from the PlanIt planning register.

9 Heol Bennett has an approved rear extension on the planning record.

1 application on record at 9 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF

1decisions1extensions6documents1nearby
  1. Jun 2018
    ConservatoryFull
    Outcome in report

    Extension: Rear of property

    CONSERVATORY TO REAR OF HOUSE

    Extension
    Documents
    6 docs on file
    Reference
    18/01096/DCH
    Full record in report

Unlock 9 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 1 notable nearby
  • The 6 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

Price

Sales history & valuation

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

9 Heol Bennett valuation sits well clear of the typical sold price in this postcode.

Current estimate

£661,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2018)

£441,995

Recorded with HM Land Registry.

Sales timeline

  1. 10 January 2018Most recent

    £441,995

Median price across the last 5 sales in CF3 6AF: £468,995 (2025–2020).

On the street

Versus other Heol Bennett homes

Four headline reads against 48 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 9 Heol Bennett runs well behind the street norm.

Price per m²

£2,376

Street avg £2,807

Strongly below

Floor Area

186 m²

Street avg 114 m²

Strongly above

CO₂ Emissions

2.2 t/year

Street avg 1.6 t/year

Strongly below

Years Held

8 years

Street avg 8 years

Strongly above
Before you decide

Everything you need to know about 9 Heol Bennett

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.
£679k

1 Minorca Cottages, Michaelston Y Fedw

CF3 6XX

5 bed
£691k

1 New Park Cottages, Castleton

CF3 6US

£619k

1 Tai Derwen, Cefn Mably

CF3 6XR

4 bed2 bath
£609k

1 Heol Bennett, Old St Mellons

CF3 6AF

£543k

1 Rhodfa Lewis, Old St Mellons

CF3 6YP

£524k

1 Ruperra Close, Old St Mellons

CF3 6HX

4 bed2 bath
£478k

1 George Crescent, Old St Mellons

CF3 6AH

£997k

1 High Trees Court, Druidstone Road, Old St Mellons

CF3 6AZ

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

0.3 km

Heol Bennett — 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 9 Heol Bennett, Old St Mellons, Cardiff, CF3 6AF. Each answer is also embedded as structured data for search engines.