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Get started20 Gelli Ddaear Goch is a three-bedroom detached house in Llanharry, Pontyclun, Pontyclun (CF72 9WE). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 2007-2011 and council tax band E. The latest certificate (March 2023) shows a C (score 75), near the top of the C band. Earlier certificates rated it B (June 2010); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good and lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 86).
Sale prices here have outpaced England HPI: 3.9% per year against 0.1% for the wider region. On a £-per-square-foot basis, the last sale (£293/sq ft) was about 57.5% above the typical sold price in the postcode. Most recent transfer was October 2025 at £315,000 — fresh data. At 100 m² it's 18.7% larger than the typical home in the postcode (84 m² median across 20 EPCs).
20 Gelli Ddaear Goch valuation sits well clear of the typical sold price in this postcode.
£331,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 14 years.
£315,000
Growth on file: 3.9% per year over 14 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
On years held, 20 Gelli Ddaear Goch runs well behind the street norm.
Price per m²
£3,150
Street avg £2,393
Floor Area
100 m²
Street avg 90 m²
Habitable Rooms
6 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Llechau Farm — bus stop.
Changes detected from historical EPC data
Hot water efficiency decreased
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
15 October 2025Most recent
£315,000
+73.1%over 14 years23 June 2011
£182,000
Median price across the last 5 sales in CF72 9WE: £340,000 (2025–2022).
15 Gelli Ddaear Goch Llanharry Pontyclun
Sold Sept 2025
16 Gelli Ddaear Goch Llanharry Pontyclun
Sold Mar 2025
1 Gelli Ddaear Goch Llanharry Pontyclun
Sold Nov 2024
11 Gelli Ddaear Goch Llanharry Pontyclun
Sold Feb 2024
17 Gelli Ddaear Goch Llanharry Pontyclun
Sold Nov 2020
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Detailed EPC data
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Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
2.4 t/year
Street avg 2.0 t/year
CF72 9HS