17 Dumfries Street, Treherbert, Treorchy, CF42 5PL
About 17 Dumfries Street
17 Dumfries Street is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5PL). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2020) returns a B (score 84), comfortably above the UK average. When first surveyed in August 2019 the rating was F, the property has climbed 4 bands since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Average to Very Good. The recommended improvements would push it to A (score 94).
On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £137,000 sits 204.4% above the 2021 sale of £45,000. On a £-per-square-foot basis, the last sale (£43/sq ft) was about 46.2% below the postcode norm. Sold April 2021 for £45,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 17 Dumfries 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
17 Dumfries Street ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
17 Dumfries Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 17 Dumfries 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
17 Dumfries Street's estimated value is more than triple its earliest registered sale price (2021).
£137,000
Modelled from EPC, postcode comparables.
£45,000
Recorded with HM Land Registry.
Sales timeline
29 April 2021Most recent
£45,000
Median price across the last 5 sales in CF42 5PL: £95,000 (2023–2019).
Nearby sales in CF42 5PL
4 Dumfries Street, Treherbert, Treorchy, CF42 5PL
Sold Aug 2023
£130,00012 Dumfries Street, Treherbert, Treorchy, CF42 5PL
Sold Oct 2022
£76,0007 Dumfries Street, Treherbert, Treorchy, CF42 5PL
Sold May 2022
£123,00025 Dumfries Street, Treherbert, Treorchy, CF42 5PL
Sold Sept 2021
£95,00011 Dumfries Street, Treherbert, Treorchy, CF42 5PL
Sold May 2019
£84,995
Everything we know about 17 Dumfries 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 Dumfries Street homes
On epc rating, 17 Dumfries Street stands well clear of the street.
Price per m²
£464
Street avg £965
Floor Area
97 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 4.8 t/year
Similar properties nearby
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1 David Street, Treherbert
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1 Cwmsaerbren Street, Treherbert
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1 Charles Street, Treherbert
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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
Dunraven Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.