25 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
About 25 Cefn Mably Park
25 Cefn Mably Park is a six-bedroom detached house in Michaelston-Y-Fedw, Cardiff, Cardiff (CF3 6AA). It has a recorded floor area of 423 m² (around 4553 sq ft) and construction records dating it to 1996-2002. The latest certificate (July 2015) shows an E (score 43), well below the UK norm with real room to improve. Earlier certificates rated it D (February 2010); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Poor. The recommended improvements would push it to D (score 56). Main heating runs on lpg. The latest certificate is from July 2015, so improvements made since then won't be reflected. Other recorded features include a balcony, a conservatory and outbuildings. Period features are noted in the property record.
At 423 m² the property is well over the postcode median (220 m² across 34 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. Across 2002–2019, sale prices on this property compounded at 2.5% per year. Today's modelled estimate of £1,380,000 is 36% above the 2019 sale price. Sold December 2019 for £1,015,000.
What this property has
Inside
- Bedrooms6
- Bathrooms5
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenFront and rear
- GarageYes
- BalconyYes
- OutbuildingsYes
Building
- Central heatingYes
- Period featuresYes
- RefurbishedYes
Energy performance
25 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This certificate is over 10 years old and is no longer valid.Expired 12 Jul 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Fuel source changed
Hot water efficiency decreased
Get a survey for this property
Level 3 Building Survey
Because the property is a large detached home over 300m², has been extended more than once, and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
3 applications on record at 25 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
- Feb 2017Tree WorksTreesOutcome in report
Remove Cypress tree and remove and reduce heavily weighted limbs of Oak tree (TPO No. 13/01/CCBC)
- Documents
- 4 docs on file
- Reference
- 16/1080/TPO
- More recent applications — locked
- Tree WorksApr 2023Decision
- ExtensionAug 2022Decision
Unlock 25 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 (2 on record)
- All 3 applications on this property in full, plus 1 notable nearby
- The 26 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
25 Cefn Mably Park valuation sits well clear of the typical sold price in this postcode.
£1,380,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 18 years.
£1,015,000
Growth on file: 2.5% per year over 18 years.
Sales timeline
12 December 2019Most recent
£1,015,000
+10.9%over 3 years7 July 2016
£915,000
+39.2%over 14 years13 March 2002
£657,133
Median price across the last 5 sales in CF3 6AA: £590,000 (2024–2021).
Nearby sales in CF3 6AA
4 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Nov 2024
£450,00012 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Jul 2024
£610,00016 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Oct 2023
£1,250,0009 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Jun 2023
£590,00043 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Nov 2021
£360,000
Versus other Cefn Mably Park homes
On habitable rooms, 25 Cefn Mably Park stands well clear of the street.
Price per m²
£2,400
Street avg £2,733
Floor Area
423 m²
Street avg 265 m²
Habitable Rooms
12 rooms
Street avg 8 rooms
CO₂ Emissions
13.0 t/year
Street avg 8.6 t/year
Similar properties nearby
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1 New Park Cottages, Castleton
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The neighbourhood at a glance
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.







