9 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
About 9 Bryn Rhosyn
9 Bryn Rhosyn is a five-bedroom detached house in Radyr, Cardiff, Cardiff (CF15 8RN). It has a recorded floor area of 186 m² (around 2002 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (October 2016) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2016. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. Records show the property has been extended at some point in its history.
At 186 m² the property is well over the postcode median (79 m² across 17 EPCs), placing it in the larger end of the local stock. Across 1999–2016, sale prices on this property compounded at 7% per year. Today's modelled estimate of £686,000 sits 56.3% above the 2016 sale of £439,000. Last changed hands 10 years ago, in March 2016.
What this property has
Inside
- Bedrooms5
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageDouble
Building
- Previously extendedYes
Energy performance
9 Bryn Rhosyn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 9 October 2026
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
9 Bryn Rhosyn 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
Latest sale on 9 Bryn Rhosyn was the highest on Land Registry record across the postcode.
£686,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 17 years.
£439,000
Growth on file: 7.0% per year over 17 years.
Sales timeline
29 March 2016Most recent
£439,000
+213.6%over 16 years3 June 1999
£140,000
Median price across the last 5 sales in CF15 8RN: £262,500 (2025–2020).
Nearby sales in CF15 8RN
6 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
Sold Dec 2025
£350,00023 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
Sold Feb 2025
£360,0008 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
Sold Feb 2022
£260,00019 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
Sold Feb 2021
£257,0005 Bryn Rhosyn, Radyr, Cardiff, CF15 8RN
Sold Oct 2020
£262,500
Versus other Bryn Rhosyn homes
9 Bryn Rhosyn outperforms the street on floor area by a wide margin.
Price per m²
£2,360
Street avg £2,936
Floor Area
186 m²
Street avg 84 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
7.9 t/year
Street avg 3.6 t/year
Similar properties nearby
1 Bates Court, Radyr
CF15 8EJ
1 Bryn Calch, Morganstown
CF15 8FD
1 Ael Y Bryn, Radyr
CF15 8AZ
1 Bryn Castell, Radyr
CF15 8RA
1 Caer Idwen, Morganstown
CF15 8FZ
1 Clos Tylaway, Radyr
CF15 8DU
1 Clos Y Mynydd, Morganstown
CF15 8FH
1 Clos Y Gwyddfid, Morganstown
CF15 8EX
The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pentwyn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







