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Get started6 Cefn Cwellyn is a mid-terrace house in Rhyd Ddu, Caernarfon, Caernarfon (LL54 6TP). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (February 2026) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in June 2012 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and hot-water efficiency went from Poor to Average; while roof efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 76). Main heating runs on lpg. This certificate was lodged in the last six months, so the rating reflects current condition.
One historical planning record sits against the property in 2018.
The EPC has just been inspected, so the rating reflects current condition.
Structural refurbishment including installation of external cladding
6 Cefn Cwellyn has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£128,000
Modelled from EPC, postcode comparables.
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.
On epc rating, 6 Cefn Cwellyn stands well clear of the street.
EPC Rating
67 (D)
Street avg 48 (E)
Floor Area
88 m²
Street avg 86 m²
CO₂ Emissions
2.1 t/year
Street avg 5.1 t/year
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cwellyn Arms — bus stop.
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water efficiency improved
Wall insulation improved
Fuel source changed
Hot water efficiency decreased
Hot water system upgraded
Solar water heating installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in LL54 6TP: £225,000 (2018–2003).
Habitable Rooms
5 rooms
Street avg 5 rooms