13 Llys Dewi, Creigiau, Cardiff, CF15 9JY
About 13 Llys Dewi
13 Llys Dewi is a three-bedroom semi-detached house in Creigiau, Cardiff, Cardiff (CF15 9JY). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (November 2021) shows a D (score 62), on the cusp of jumping into the C band. Earlier certificates rated it C (March 2009); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 85), a 2-band jump.
It hasn't traded since June 2001, a hold of 25 years that's notably long for the area. Across 1995–2001, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £256,000 sits 201.2% above the 2001 sale of £85,000. On a £-per-square-foot basis, the last sale (£123/sq ft) was about 44.5% below the postcode norm.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
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Planning history
13 Llys Dewi has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
13 Llys Dewi's modelled value sits at over four times its earliest registered sale price (1995).
£256,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 6 years.
£85,000
Growth on file: 7.7% per year over 6 years.
Sales timeline
28 June 2001Most recent
£85,000
+60.4%over 6 years21 February 1995
£53,000
Median price across the last 5 sales in CF15 9JY: £195,000 (2025–2022).
Nearby sales in CF15 9JY
16 Llys Dewi, Creigiau, Cardiff, CF15 9JY
Sold Jan 2025
£235,00017 Llys Dewi, Creigiau, Cardiff, CF15 9JY
Sold Dec 2024
£187,50029 Llys Dewi, Creigiau, Cardiff, CF15 9JY
Sold May 2024
£258,00018 Llys Dewi, Creigiau, Cardiff, CF15 9JY
Sold Dec 2022
£185,00022 Llys Dewi, Creigiau, Cardiff, CF15 9JY
Sold Sept 2022
£195,000
Versus other Llys Dewi homes
Price per m² for 13 Llys Dewi lags the street by a wide margin.
Price per m²
£1,328
Street avg £2,990
Floor Area
64 m²
Street avg 59 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Llys Gwynno — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







