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Get started7 Erw Sant is an end-of-terrace house in Llanaelhaearn, Caernarfon, Caernarfon (LL54 5AS). It has a recorded floor area of 66 m² (around 710 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (July 2025) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in September 2017 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and window efficiency went from Poor to Good. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.
At 66 m² it's 26.9% larger than the typical home in the postcode (52 m² median across 3 EPCs).
7 Erw Sant's carbon output is low for the local stock.
7 Erw Sant has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£143,000
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.
Floor Area for 7 Erw Sant runs comfortably ahead of the street norm.
EPC Rating
39 (E)
Street avg 45 (E)
Floor Area
66 m²
Street avg 54 m²
CO₂ Emissions
1.3 t/year
Street avg 4.7 t/year
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Llanaelhaearn Police Station — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
High performance glazing installed
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in LL54 5AS: £76,750 (2018–2002).
Habitable Rooms
4 rooms
Street avg 3 rooms
LL54 5AP