17 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
About 17 Castle Road
17 Castle Road is a four-bedroom semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7JQ). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 2012-2021 and council tax band F. The property has an EV charger on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony and notable views. The latest certificate (September 2025) shows a C (score 79), near the top of the C band. The recommended improvements would push it to B (score 82).
At 145 m² the property is well over the postcode median (96 m² across 24 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold December 2025 for £462,500. Across 2014–2025, sale prices on this property compounded at 4% per year. On a £-per-square-foot basis, the last sale (£296/sq ft) was about 41.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- EnsuiteYes
Outside
- Private gardenRear
- ParkingOff road
- BalconyYes
- Notable viewsYes
Building
- EV chargerYes
Energy performance
EPC Rating
Certificate validity
Valid until 1 September 2035
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Planning history
17 Castle Road 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
17 Castle Road valuation sits well clear of the typical sold price in this postcode.
£469,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 11 years.
£462,500
Growth on file: 4.0% per year over 11 years.
Sales timeline
18 December 2025Most recent
£462,500
+56.8%over 11 years6 July 2014
£295,000
Median price across the last 5 sales in CF15 7JQ: £265,000 (2023–2022).
Nearby sales in CF15 7JQ
34 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Nov 2023
£325,0003 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Apr 2023
£265,0005 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Mar 2023
£289,0001 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Jun 2022
£252,500Ty Isaf Farm, Ty Newydd, Castle Road, Tongwynlais, Cardiff, CF15 7JQ
Sold Feb 2021
£615,000
Versus other Castle Road homes
17 Castle Road is notably below the street on years held.
Price per m²
£3,190
Street avg £3,022
Floor Area
145 m²
Street avg 130 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.9 t/year
Similar properties nearby
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Bute Villa, Taffs Well
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1 Cwm Gwynlais, Tongwynlais
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1 Birch Hill, Tongwynlais
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1 Beechwood Road, Taffs Well
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1 Cules Terrace, Taffs Well
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1 Forest Cottage, Castle Road, Tongwynlais
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1 Bute Street, Tongwynlais
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Catherine Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







