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20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA

3 sales on record1 planning record
Property type
Detached
Habitable rooms
10
From EPC
Floor area
343 m²
3692 sq ft
Energy rating
C
Score 70
Tenure
Owner Occupied
Overview

About 20 Cefn Mably Park

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

20 Cefn Mably Park is a detached house in Michaelston-Y-Fedw, Cardiff, Cardiff (CF3 6AA). It has a recorded floor area of 343 m² (around 3692 sq ft) and construction records dating it to 2003-2006. The latest certificate (November 2015) shows a C (score 70). The rating has held steady at C across 2 certificates since September 2014. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The latest certificate is from November 2015, so improvements made since then won't be reflected.

At 343 m² the property is well over the postcode median (220 m² across 34 EPCs), placing it in the larger end of the local stock. Across 2000–2016, sale prices on this property compounded at 1.3% per year. Today's modelled estimate of £1,589,000 sits 107.7% above the 2016 sale of £765,000. One planning record on file: an extension approved in 2017. Past consents include an extension, meaningful when judging how the property has evolved. 10 years since the last transfer (March 2016).

Before you decide

Everything you need to know about 20 Cefn Mably Park

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.

20 Cefn Mably Park's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 12 Nov 2025

Current Certificate(1 of 2)
Nov 2015

EPC Rating

A
B
C
C70
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
8.7 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Nov 2015from Sept 2014
Heating Controls
FullProg + TRVs

Heating controls changed

Hot Water
GoodAverage

Hot water efficiency decreased

Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Low Energy Lighting
38%0%

Low energy lighting percentage decreased

SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st centuryDetached HouseEPC CDetached over 300m²

Because the property is a large detached home over 300m², we believe a Level 3 building survey should be considered.

From £1,795 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA, sourced from the PlanIt planning register.

20 Cefn Mably Park has an approved single-storey rear extension on the planning record.

1 application on record at 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA

1decisions1extensions8documents1nearby
Flagged:Retrospective
  1. Nov 2017
    Extension
    Outcome in report

    Extension: Single storey · Rear of property

    Retain single storey rear extension

    Retrospective
    Documents
    8 docs on file
    Reference
    17/0833/RET
    Full record in report

Unlock 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA'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 8 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.

20 Cefn Mably Park's sale-price growth has lagged the wider UK trajectory across its history on file.

Current estimate

£1,589,000

Modelled from EPC, postcode comparables and a sale-price growth of 1.3% per year over 16 years.

See how we calculated this
Last sold (2016)

£765,000

Growth on file: 1.3% per year over 16 years.

Sales timeline

  1. 28 March 2016Most recent

    £765,000

    -22.3%over 9 years

  2. 16 October 2006

    £985,000

    +57.6%over 6 years

  3. 23 April 2000

    £625,000

Median price across the last 5 sales in CF3 6AA: £590,000 (2024–2021).

On the street

Versus other Cefn Mably Park homes

Four headline reads against 26 similar houses on this street, drawn from the latest EPC and Land Registry data.

On floor area, 20 Cefn Mably Park stands well clear of the street.

Price per m²

£2,230

Street avg £2,739

Below

Floor Area

343 m²

Street avg 269 m²

Strongly above

Habitable Rooms

10 rooms

Street avg 8 rooms

Above

CO₂ Emissions

8.7 t/year

Street avg 8.8 t/year

On par
Before you decide

Everything you need to know about 20 Cefn Mably Park

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.
£997k

1 High Trees Court, Druidstone Road, Old St Mellons

CF3 6AZ

£691k

1 New Park Cottages, Castleton

CF3 6US

£679k

1 Minorca Cottages, Michaelston Y Fedw

CF3 6XX

5 bed
£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

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

1.3 km

Cardiff Gate — 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 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA. Each answer is also embedded as structured data for search engines.