11 Castle Road, Tongwynlais, Cardiff, CF15 7JQ
About 11 Castle Road
11 Castle Road is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7JQ). It has a recorded floor area of 139 m² (around 1496 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (September 2016) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump.
At 139 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 lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Today's modelled estimate of £563,000 sits 52.2% above the 2017 sale of £370,000. On a £-per-square-foot basis, the last sale (£247/sq ft) was about 19.7% above the typical sold price in the postcode. Last changed hands 9 years ago, in January 2017.
Energy performance
11 Castle Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
11 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
11 Castle Road valuation sits well clear of the typical sold price in this postcode.
£563,000
Modelled from EPC, postcode comparables.
£370,000
Recorded with HM Land Registry.
Sales timeline
12 January 2017Most recent
£370,000
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
11 Castle Road is notably below the street on epc rating.
Price per m²
£2,662
Street avg £2,985
Floor Area
139 m²
Street avg 130 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
6.9 t/year
Street avg 4.7 t/year
Similar properties nearby
1 Cules Terrace, Taffs Well
CF15 7QJ
1 Birch Hill, Tongwynlais
CF15 7LL
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Brynau Road, Taffs Well
CF15 7SA
1 Cross Street, Tongwynlais
CF15 7NQ
1 Alfred Terrace, Taffs Well
CF15 7RJ
1 Bute Villa, Taffs Well
CF15 7QP
The neighbourhood at a glance
Crime
2/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.







