Gwynt Y Mor, Heol Yr Esgob, Llanon, SY23 5HS
About Gwynt Y Mor
Gwynt Y Mor is a detached house in Llanon (SY23 5HS). It has a recorded floor area of 151 m² (around 1625 sq ft) and construction records dating it to 1950-1966. The latest certificate (September 2025) shows a C (score 77), near the top of the C band. When first surveyed in April 2021 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Average to Very Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 81). Main heating runs on electricity.
At 151 m² the property is well over the postcode median (94 m² across 15 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £370,000 sits 270% above the 2021 sale of £100,000. On a £-per-square-foot basis, the last sale (£62/sq ft) was about 65.8% below the postcode norm. One planning record on file: an extension approved in 2021. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Last sale on file: £100,000 in January 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Gwynt Y Mor
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Gwynt Y Mor ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Hot water efficiency improved
High performance glazing installed
Loft insulation upgraded to recommended levels
Floor insulation added or improved
Planning history
- Dec 2021PorchFullIn report
Proposed extension and alterations to dwelling to include removal of porches and garage.
Extension- Documents
- 6 docs on file
- Reference
- A210847
What's in Gwynt Y Mor, Heol Yr Esgob, Llanon, SY23 5HS's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Gwynt Y Mor's estimated value is more than triple its earliest registered sale price (2021).
£370,000
Modelled from EPC, postcode comparables.
£100,000
Recorded with HM Land Registry.
Sales timeline
27 January 2021Most recent
£100,000
Median price across the last 5 sales in SY23 5HS: £235,000 (2023–2018).
Nearby sales in SY23 5HS
Glanyrafon, Heol Yr Esgob, Llanon, SY23 5HS
Sold Feb 2023
£235,0004 Albion Fields, Heol Yr Esgob, Llanon, SY23 5HS
Sold Feb 2023
£300,000Cadwgan, Heol Yr Esgob, Llanon, SY23 5HS
Sold Oct 2021
£215,0006 Albion Fields, Heol Yr Esgob, Llanon, SY23 5HS
Sold Oct 2018
£170,00010 Albion Fields, Heol Yr Esgob, Llanon, SY23 5HS
Sold Dec 2017
£170,000
Everything we know about Gwynt Y Mor, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Heol Yr Esgob homes
Gwynt Y Mor is notably below the street on price per m².
Price per m²
£662
Street avg £1,917
Floor Area
151 m²
Street avg 96 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
0.9 t/year
Street avg 5.8 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.5 km
Central Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.