12 Roundwood Close, Penylan, Cardiff, CF23 9HH
About 12 Roundwood Close
12 Roundwood Close is a three-bedroom semi-detached house in Penylan, Cardiff, Cardiff (CF23 9HH). It has a recorded floor area of 75 m² (around 804 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (March 2012) shows a C (score 71). The latest certificate is from March 2012, so improvements made since then won't be reflected.
Today's modelled estimate of £263,000 sits 54.7% above the 2013 sale of £170,000. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 13 years ago, in March 2013. At 75 m² it's 17.9% smaller than the typical home in the postcode (91 m² median across 14 EPCs).
What this property has
Inside
- Bedrooms3
Outside
- Private gardenFront and rear
- GarageYes
Building
- Central heatingYes
Energy performance
12 Roundwood Close's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Mar 2022
EPC Rating
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Planning history
12 Roundwood Close has 2 separate extension applications on the council record.
2 applications on record at 12 Roundwood Close, Penylan, Cardiff, CF23 9HH
- Dec 2015ExtensionFullOutcome in report
SINGLE &TWO STOREY REAR AND SIDE EXTENSIONS.
- Documents
- 12 docs on file
- Reference
- 15/02788/DCH
- More recent applications — locked
- ExtensionApr 2016Decision
Unlock 12 Roundwood Close, Penylan, Cardiff, CF23 9HH'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- Every decision — granted, refused or withdrawn (2 on record)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 2 applications on this property in full, plus 2 notable nearby
- The 34 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Roundwood Close valuation sits well clear of the typical sold price in this postcode.
£263,000
Modelled from EPC, postcode comparables.
£170,000
Recorded with HM Land Registry.
Sales timeline
28 March 2013Most recent
£170,000
Median price across the last 5 sales in CF23 9HH: £290,000 (2025–2020).
Nearby sales in CF23 9HH
20 Roundwood Close, Penylan, Cardiff, CF23 9HH
Sold Jan 2025
£275,0006 Roundwood Close, Penylan, Cardiff, CF23 9HH
Sold Dec 2022
£320,0003 Roundwood Close, Penylan, Cardiff, CF23 9HH
Sold Mar 2022
£290,00019 Roundwood Close, Penylan, Cardiff, CF23 9HH
Sold Jun 2021
£295,0001 Roundwood Close, Penylan, Cardiff, CF23 9HH
Sold Dec 2020
£285,000
Versus other Roundwood Close homes
Habitable Rooms for 12 Roundwood Close lags the street by a wide margin.
Price per m²
£2,275
Street avg £2,704
Floor Area
75 m²
Street avg 93 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
2.6 t/year
Street avg 3.5 t/year
Similar properties nearby
1 Kingwood Close, Penylan
CF23 9HE
1 Firstbrook Close
CF23 9ER
1 Bryn Y Nant, Llanedeyrn
CF23 9NZ
1 Hugon Close
CF23 9BY
1 Earl S Court Road, Penylan
CF23 9DD
1 Eastside Quarter, Maelfa, Llanedeyrn
CF23 9PN
1 Howardian Close, Penylan
CF23 9AG
1 Grafton Close, Penylan
CF23 9JA
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Llanedeyrn Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







