20 Clifton Street, Treorchy, CF42 6UP
About 20 Clifton Street
20 Clifton Street is a mid-terrace house in Treorchy (CF42 6UP). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (December 2009) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 72), a 2-band jump. The latest certificate is from December 2009, so improvements made since then won't be reflected.
It hasn't traded since December 2004, a hold of 21 years that's notably long for the area. Across 2004–2004, sale prices on this property compounded at 300% per year. Today's modelled estimate of £129,000 sits 65.4% above the 2004 sale of £78,000. On a £-per-square-foot basis, the last sale (£73/sq ft) was about 30.8% above the typical sold price in the postcode. At 99 m² it's 19.3% larger than the typical home in the postcode (83 m² median across 23 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs).
Know exactly what you're buying at 20 Clifton Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 08 Dec 2019
EPC Rating
Planning history
20 Clifton Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
We flagged 1 thing worth checking at 20 Clifton Street
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Recent ownership pattern worth a look
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Sales history & valuation
Price for 20 Clifton Street has grown more than fourfold since the 2004 starting point.
£129,000
Modelled from EPC, postcode comparables and a sale-price growth of 300.0% per year over 1 year.
£78,000
Growth on file: 300.0% per year over 1 year.
Sales timeline
16 December 2004Most recent
£78,000
+300.0%over 8 months13 April 2004
£19,500
Median price across the last 5 sales in CF42 6UP: £128,000 (2024–2021).
Nearby sales in CF42 6UP
Everything we know about 20 Clifton Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Recent ownership pattern worth a look

Versus other Clifton Street homes
On years held, 20 Clifton Street stands well clear of the street.
Price per m²
£788
Street avg £936
Floor Area
99 m²
Street avg 86 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 5.1 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Parc Crescent — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.