4 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
About 4 Glanselsig Street
4 Glanselsig Street is a two-bedroom mid-terrace house in Blaencwm, Treorchy, Treorchy (CF42 5EB). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (May 2019) shows a C (score 69), just inside the C band. When first surveyed in May 2010 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good and roof efficiency went from Very Poor to Average; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 87).
Across 2010–2012, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £111,000 sits 77.6% above the 2012 sale of £62,500. On the market in August 2012 and unlisted since — roughly 14 years.
Know exactly what you're buying at 4 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
What this property has
Inside
- Bedrooms2
- Utility roomYes
Outside
- Private gardenRear
Building
- Heating systemGas
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Heating controls upgraded for better temperature management
Wall insulation improved
Roof insulation improved
Planning history
4 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 4 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
4 Glanselsig Street valuation sits well clear of the typical sold price in this postcode.
£111,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 2 years.
£62,500
Growth on file: 7.4% per year over 2 years.
Sales timeline
2 August 2012Most recent
£62,500
+13.6%over 1 year21 October 2010
£55,000
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 4 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
Years Held for 4 Glanselsig Street runs comfortably ahead of the street norm.
Price per m²
£992
Street avg £1,152
Floor Area
63 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
3.1 t/year
Street avg 4.4 t/year
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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.