18 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
About 18 Glanselsig Street
18 Glanselsig Street is an end-of-terrace house in Blaencwm, Treorchy, Treorchy (CF42 5EB). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (August 2019) shows a C (score 71). When first surveyed in November 2014 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good and lighting went from Good to Very Good.
At 82 m² it's 28.1% larger than the typical home in the postcode (64 m² median across 17 EPCs).
Know exactly what you're buying at 18 Glanselsig 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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Wall insulation improved
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
More low energy lighting installed
Planning history
18 Glanselsig Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 18 Glanselsig 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
18 Glanselsig Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£125,000
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 5EB: £80,500 (2024–2021).
Nearby sales in CF42 5EB
3 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Oct 2024
£95,0009 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Nov 2023
£72,00010 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Dec 2022
£142,00020 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Feb 2022
£80,5006 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Oct 2021
£50,000
Everything we know about 18 Glanselsig 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 Glanselsig Street homes
EPC Rating
71 (C)
Street avg 64 (D)
Floor Area
82 m²
Street avg 71 m²
CO₂ Emissions
4.3 t/year
Street avg 4.3 t/year
Habitable Rooms
4 rooms
Street avg 5 rooms
Similar properties nearby
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1 Bute Street, Treherbert
CF42 5NP
1 Corbett Street, Treherbert
CF42 5EL
1 Cwmsaerbren Flats, Treherbert
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1 Charles 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
Blaencwm Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.