10 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
About 10 Glanselsig Street
10 Glanselsig Street is a two-bedroom end-of-terrace house in Blaencwm, Treorchy, Treorchy (CF42 5EB). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (August 2023) shows a C (score 80), near the top of the C band. When first surveyed in September 2013 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Poor to Average and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 87).
Across 2004–2022, sale prices on this property compounded at 6.8% per year. On a £-per-square-foot basis, the last sale (£197/sq ft) was about 139.6% above the typical sold price in the postcode. Most recent transfer: December 2022 at £142,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 10 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
- Bathrooms1
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water efficiency improved
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Hot water efficiency decreased
Window efficiency improved
Solar PV panels (20 kWp) installed
Planning history
10 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 10 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
Latest sale on 10 Glanselsig Street was the highest on Land Registry record across the postcode.
£153,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 18 years.
£142,000
Growth on file: 6.8% per year over 18 years.
Sales timeline
15 December 2022Most recent
£142,000
+136.7%over 16 years7 May 2006
£60,000
+37.9%over 1 year17 December 2004
£43,500
Median price across the last 5 sales in CF42 5EB: £72,000 (2024–2019).
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
£72,00020 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Feb 2022
£80,5006 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Oct 2021
£50,00017 Glanselsig Street, Blaencwm, Treorchy, CF42 5EB
Sold Oct 2018
£53,195
Everything we know about 10 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
On price per m², 10 Glanselsig Street stands well clear of the street.
Price per m²
£2,119
Street avg £1,011
Floor Area
67 m²
Street avg 72 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.4 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.