1 Hopkin Street, Treherbert, Treorchy, CF42 5HL
About 1 Hopkin Street
1 Hopkin Street is an end-of-terrace house in Treherbert, Treorchy, Treorchy (CF42 5HL). It has a recorded floor area of 191 m² (around 2056 sq ft) and construction records dating it to 1900-1929. The latest certificate (August 2019) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in June 2014 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 74).
At 191 m² the property is well over the postcode median (74 m² across 24 EPCs), placing it in the larger end of the local stock.
Know exactly what you're buying at 1 Hopkin 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
1 Hopkin Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Wall insulation improved
More low energy lighting installed
Planning history
1 Hopkin Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 1 Hopkin 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.
- Signs of HMO activity in the area
30-day money-back guarantee
Sales history & valuation
1 Hopkin Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£234,000
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 5HL: £95,000 (2024–2019).
Nearby sales in CF42 5HL
29 Hopkin Street, Treherbert, Treorchy, CF42 5HL
Sold Jun 2024
£65,50026 Hopkin Street, Treherbert, Treorchy, CF42 5HL
Sold May 2023
£108,00023 Hopkin Street, Treherbert, Treorchy, CF42 5HL
Sold Oct 2021
£95,00022 Hopkin Street, Treherbert, Treorchy, CF42 5HL
Sold Aug 2021
£99,95019 Hopkin Street, Treherbert, Treorchy, CF42 5HL
Sold Dec 2019
£70,000
Everything we know about 1 Hopkin 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
- Signs of HMO activity in the area

Versus other Hopkin Street homes
1 Hopkin Street outperforms the street on floor area by a wide margin.
EPC Rating
62 (D)
Street avg 62 (D)
Floor Area
191 m²
Street avg 76 m²
CO₂ Emissions
11.0 t/year
Street avg 4.6 t/year
Habitable Rooms
7 rooms
Street avg 4 rooms
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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
0.1 km
Baglan Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.