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Get started40 County Road is a mid-terrace house in Penygroes, Caernarfon, Caernarfon (LL54 6ES). It has a recorded floor area of 109 m² (around 1173 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2021) shows a C (score 78), near the top of the C band. When first surveyed in June 2009 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and hot-water efficiency went from Very Poor to Good. The recommended improvements would push it to B (score 82).
Sale prices here have outpaced England HPI: 6% per year against 0% for the wider region. Today's modelled estimate of £173,000 is 28.1% above the 2021 sale price. At 109 m² the property is well over the postcode median (75 m² across 19 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). One planning record on file: an extension approved in 2010. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. Sold November 2021 for £135,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£173,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 12 years.
£135,000
Growth on file: 6.0% per year over 12 years.
40 County Road outperforms the street on epc rating by a wide margin.
Price per m²
£1,239
Street avg £1,383
Floor Area
109 m²
Street avg 85 m²
Habitable Rooms
4 rooms
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Capel y Groes — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Solar PV panels (30 kWp) installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Two storey · Rear of property
DYMCHWEL ESTYNIAD UNLLAWR BRESENNOL A CHODI ESTYNIAD DEULAWR AR GEFN YR EIDDO / DEMOLITION OF EXISTING SINGLE STOREY EXTENSION AND ERECTION OF TWO STOREY EXTENSION AT REAR OF PROPERTY
24 November 2021Most recent
£135,000
+98.5%over 11 years10 March 2010
£68,000
Median price across the last 5 sales in LL54 6ES: £139,950 (2025–2021).
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.8 t/year
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