11 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
About 11 Coed Y Llyn
11 Coed Y Llyn is a mid-terrace house in Cyncoed, Cardiff, Cardiff (CF23 6HR). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (September 2019) shows a C (score 71). The rating has held steady at C across 2 certificates since September 2009. Between certificates, roof efficiency went from Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 87).
Energy performance
EPC Rating
Certificate validity
Valid until 23 September 2029
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Loft insulation upgraded to recommended levels
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £545 · Includes VAT
Planning history
11 Coed Y Llyn 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 Coed Y Llyn has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£297,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF23 6HR: £229,950 (2025–2015).
Nearby sales in CF23 6HR
5 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
Sold Jul 2025
£435,0006 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
Sold May 2025
£220,00010 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
Sold Sept 2022
£350,0002 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
Sold Mar 2015
£222,0007 Coed Y Llyn, Cyncoed, Cardiff, CF23 6HR
Sold Jun 2009
£160,000
Versus other Coed Y Llyn homes
11 Coed Y Llyn is notably below the street on floor area.
EPC Rating
71 (C)
Street avg 66 (D)
Floor Area
88 m²
Street avg 99 m²
CO₂ Emissions
2.9 t/year
Street avg 3.7 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Cartref — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







