Are you a property professional?Get qualified leads from motivated homeowners.
Get startedAre you a property professional?Get qualified leads from motivated homeowners.
Get started8 Castell Y Mwnws is a one-bedroom end-of-terrace house in Llanharry, Pontyclun, Pontyclun (CF72 9DD). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (October 2017) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 71), a 2-band jump.
At 59 m² it sits well below the postcode median (149 m² across 8 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £144,000 sits 63.6% above the 2017 sale of £88,000. 4 planning records sit against the property, 4 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. On the market in December 2017 and unlisted since — roughly 8 years.
8 Castell Y Mwnws sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
8 Castell Y Mwnws has 2 separate extension applications on the council record.
Extension: Single storey · Rear of property
Conversion of 2 properties No 7 and 8 into one and a single storey rear extension.
£144,000
Modelled from EPC, postcode comparables.
£88,000
Recorded with HM Land Registry.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
On epc rating, 8 Castell Y Mwnws runs well behind the street norm.
Price per m²
£1,492
Street avg £2,092
Floor Area
59 m²
Street avg 163 m²
Habitable Rooms
2 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Elms Farm — bus stop.
Extension: Single storey · Rear of property
Conversion of 2 properties No 7 and 8 into one and a single storey rear extension.
2 more applications for this property
Join to see all planning history.
20 December 2017Most recent
£88,000
Median price across the last 5 sales in CF72 9DD: £450,000 (2025–2019).
An AI-written breakdown of everything that matters
Detailed EPC data
Full energy ratings, history and recommendations
Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
Ad-free · Instant access · Secure Stripe checkout · One-off payment
Street avg 6 rooms
CO₂ Emissions
4.2 t/year
Street avg 4.1 t/year
CF72 9ZG