17 Barrett Street, Treorchy, CF42 6LN
About 17 Barrett Street
17 Barrett Street is a mid-terrace house in Treorchy (CF42 6LN). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (November 2025) shows a C (score 70). When first surveyed in August 2020 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and roof efficiency went from Very Poor to Good; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Average.
Its energy rating outperforms most of the postcode (better than 71% of similar EPCs).
Know exactly what you're buying at 17 Barrett Street
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Roof insulation improved
Planning history
17 Barrett Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
17 Barrett Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£117,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF42 6LN: £120,000 (2025–2022).
Nearby sales in CF42 6LN
Everything we know about 17 Barrett Street, 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 Barrett Street homes
17 Barrett Street outperforms the street on co₂ emissions by a wide margin.
EPC Rating
70 (C)
Street avg 63 (D)
Floor Area
68 m²
Street avg 88 m²
CO₂ Emissions
2.9 t/year
Street avg 4.8 t/year
Habitable Rooms
4 rooms
Street avg 5 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Park Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.