20 Hopkin Street, Treherbert, Treorchy, CF42 5HL
About 20 Hopkin Street
20 Hopkin Street is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5HL). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (August 2019) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump.
Held since August 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £118,000 sits 490% above the 1997 sale of £20,000. On a £-per-square-foot basis, the last sale (£24/sq ft) was about 61% below the postcode norm.
Know exactly what you're buying at 20 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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
20 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 20 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
20 Hopkin Street's modelled value sits at over four times its earliest registered sale price (1997).
£118,000
Modelled from EPC, postcode comparables.
£20,000
Recorded with HM Land Registry.
Sales timeline
14 August 1997Most recent
£20,000
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 20 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
20 Hopkin Street outperforms the street on years held by a wide margin.
Price per m²
£260
Street avg £810
Floor Area
77 m²
Street avg 81 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.9 t/year
Similar properties nearby
1 Bryn Wyndham Terrace, Treherbert
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1 Bryn Henllan, Blaenrhondda
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1 Chapel Street, Blaenrhondda
CF42 5SE
1 Corbett Street, Treherbert
CF42 5EL
1 Cwmsaerbren Flats, Treherbert
CF42 5LA
1 Abertonllwyd Street, Treherbert
CF42 5PF
1 Blaen Y Cwm Road, Blaencwm
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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.