9 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
About 9 Blaen Y Cwm Terrace
9 Blaen Y Cwm Terrace is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5ND). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (December 2019) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, window efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Across 2001–2017, sale prices on this property compounded at 6% per year. Today's modelled estimate of £117,000 sits 192.5% above the 2017 sale of £39,999. On the market in July 2017 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property.
Know exactly what you're buying at 9 Blaen Y Cwm Terrace
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
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
9 Blaen Y Cwm Terrace has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 9 Blaen Y Cwm Terrace
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
9 Blaen Y Cwm Terrace has more than doubled in price since the earliest registered sale in 2001.
£117,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 16 years.
£39,999
Growth on file: 6.0% per year over 16 years.
Sales timeline
24 July 2017Most recent
£39,999
+11.1%over 11 years28 February 2006
£36,000
-6.7%over 2 years3 August 2003
£38,600
+141.3%over 1 year14 October 2001
£16,000
Median price across the last 5 sales in CF42 5ND: £70,000 (2025–2024).
Nearby sales in CF42 5ND
6 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
Sold Jul 2025
£70,00042 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
Sold Jul 2025
£68,00016 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
Sold Dec 2024
£65,00057 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
Sold Nov 2024
£77,00027 Blaen Y Cwm Terrace, Treherbert, Treorchy, CF42 5ND
Sold Nov 2024
£111,500
Everything we know about 9 Blaen Y Cwm Terrace, 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 Blaen Y Cwm Terrace homes
9 Blaen Y Cwm Terrace is notably below the street on price per m².
Price per m²
£556
Street avg £825
Floor Area
72 m²
Street avg 79 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.4 t/year
Similar properties nearby
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1 Abertonllwyd Street, Treherbert
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1 Blaen Y Cwm Road, Blaencwm
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1 Corbett Street, Treherbert
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Alban`s — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.