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Get started3 Cefn Cwellyn is a mid-terrace house in Rhyd Ddu, Caernarfon, Caernarfon (LL54 6TP). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (January 2026) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in April 2016 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good and hot-water efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 74). Main heating runs on bottled 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
3 Cefn Cwellyn has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£124,000
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.
3 Cefn Cwellyn outperforms the street on co₂ emissions by a wide margin.
EPC Rating
65 (D)
Street avg 49 (E)
Floor Area
86 m²
Street avg 86 m²
CO₂ Emissions
1.8 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
Wall insulation improved
More low energy lighting installed
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