19 Barrett Street, Treorchy, CF42 6LN
About 19 Barrett Street
19 Barrett Street is a three-bedroom end-of-terrace house in Treorchy (CF42 6LN). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (June 2019) shows an F (score 37), near the bottom of the EPC scale. Earlier certificates rated it E (May 2016); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 4-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2001–2017, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £118,000 sits 114.7% above the 2017 sale of £54,950. 9 years since the last transfer (May 2017).
Know exactly what you're buying at 19 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
What this property has
Inside
- Bedrooms3
Energy performance
19 Barrett Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
19 Barrett Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Sale price has grown by over 3x since 2001.
£118,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 15 years.
£54,950
Growth on file: 9.3% per year over 15 years.
Sales timeline
22 May 2017Most recent
£54,950
+292.5%over 15 years13 December 2001
£14,000
Median price across the last 5 sales in CF42 6LN: £120,000 (2025–2022).
Nearby sales in CF42 6LN
Everything we know about 19 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
EPC Rating for 19 Barrett Street lags the street by a wide margin.
Price per m²
£859
Street avg £983
Floor Area
64 m²
Street avg 88 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
7.1 t/year
Street avg 4.6 t/year
Similar properties nearby
1 Barrett Street
CF42 6LN
1 Castle Street
CF42 6UY
1 Brynhyfryd Street
CF42 6DT
1 Dunraven Terrace
CF42 6EL
1 Dyfodwg Street
CF42 6NN
1 Cardiff Place
CF42 6BL
1 Bute Street
CF42 6DB
1 Chapel Street
CF42 6RT
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.