10 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
About 10 Blacktown Gardens
10 Blacktown Gardens is a four-bedroom detached house in Marshfield, Cardiff, Cardiff (CF3 2SF). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 2007 onwards and council tax band F. The latest certificate (February 2020) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since October 2008. Between certificates, lighting went from Very Poor to Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 88). Records show the property has been extended at some point in its history.
Across 2007–2021, sale prices on this property compounded at 1.6% per year. Today's modelled estimate of £398,000 is 32.7% above the 2021 sale price. Sold June 2021 for £299,950. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- GarageYes
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
EPC Rating
Certificate validity
Valid until 25 February 2030
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
More low energy lighting installed
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Planning history
10 Blacktown Gardens has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£398,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.6% per year over 14 years.
£299,950
Growth on file: 1.6% per year over 14 years.
Sales timeline
21 June 2021Most recent
£299,950
+24.5%over 13 years28 June 2007
£241,000
Median price across the last 5 sales in CF3 2SF: £340,000 (2024–2020).
Nearby sales in CF3 2SF
9 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
Sold Mar 2024
£380,0003 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
Sold May 2023
£300,00032 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
Sold Dec 2022
£450,0005 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
Sold Apr 2021
£237,00012 Blacktown Gardens, Marshfield, Cardiff, CF3 2SF
Sold Aug 2020
£340,000
Versus other Blacktown Gardens homes
Years Held for 10 Blacktown Gardens lags the street by a wide margin.
Price per m²
£2,608
Street avg £2,509
Floor Area
115 m²
Street avg 117 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.8 t/year
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1 Blacktown Gardens, Marshfield
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Pentwyn Terrace — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







