1 Graig Yr Allt, Graigside, Nantgarw, Cardiff, CF15 7TN
About 1 Graig Yr Allt
1 Graig Yr Allt is an end-of-terrace house in Nantgarw, Cardiff, Cardiff (CF15 7TN). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (October 2018) shows a G (score 16), near the bottom of the EPC scale. Earlier certificates rated it E (November 2011); the latest reading is 2 bands lower. Between certificates, hot-water efficiency went from Very Poor to Poor; while roof efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 71), a 4-band jump. Main heating runs on bulk wood pellets.
Across 2006–2024, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £237,000 is 27.4% above the 2024 sale price. Most recent transfer: July 2024 at £186,000.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Fuel source changed
Hot water system upgraded
Low energy lighting percentage decreased
Heating system changed
Hot water system changed
More low energy lighting installed
Upgraded to gas central heating
Hot water system upgraded
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
1 Graig Yr Allt 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
Sale price has at least doubled since 2006.
£237,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.1% per year over 18 years.
£186,000
Growth on file: 4.1% per year over 18 years.
Sales timeline
31 July 2024Most recent
£186,000
+40.9%over 11 years16 August 2012
£132,000
+46.7%over 5 years30 August 2006
£90,000
Median price across the last 3 sales in CF15 7TN: £63,950 (2017–1996).
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Cross Keys Inn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







