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Get started11 Heol Y Gylfinir is a three-bedroom detached house in Llanilid, Pontyclun, Pontyclun (CF72 4AX). It has a recorded floor area of 92 m² (around 990 sq ft) and construction records dating it to 2025. The latest certificate (October 2025) returns an A (score 94), the top energy band on the EPC scale. When first surveyed in September 2022 the rating was B, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Good to Very Good and main heating went from Good to Very Good; while window efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good.
On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £292,000 is 19.1% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£248/sq ft) was about 18.8% below the postcode norm. Most recent transfer: September 2022 at £245,195. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
11 Heol Y Gylfinir ranks among the most efficient homes in the postcode for energy use.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£292,000
Modelled from EPC, postcode comparables.
£245,195
Recorded with HM Land Registry.
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Detailed AI analysis
EPC Rating for 11 Heol Y Gylfinir runs comfortably ahead of the street norm.
Price per m²
£2,665
Street avg £3,269
Floor Area
92 m²
Street avg 82 m²
CO₂ Emissions
0.8 t/year
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.6 km
Bryncae Post Office — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
30 September 2022Most recent
£245,195
Median price across the last 5 sales in CF72 4AX: £274,995 (2025–2024).
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Street avg 1.2 t/year
Years Held
4 years
Street avg 3 years
CF72 4AJ