109 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
About 109 Brook Street
109 Brook Street is a mid-terrace house in Blaenrhondda, Treorchy, Treorchy (CF42 5SF). It has a recorded floor area of 71 m² (around 764 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2020) shows a G (score 14), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 89), a 5-band jump. Main heating runs on electricity.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £117,000 sits 172.1% above the 2020 sale of £43,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: November 2020 at £43,000.
Know exactly what you're buying at 109 Brook 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
109 Brook Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Planning history
109 Brook Street has 2 separate extension applications on the council record.
- Mar 2021ExtensionFullIn report
Extension: Single storey
Single storey extension.
- Agent
- Arkiplan Architectural Ltd
- Documents
- 2 docs on file
- Reference
- 21/0037/10
- Mar 2021ExtensionFullIn report
Extension: Single storey
Single storey extension.
- Agent
- Arkiplan Architectural Ltd
- Documents
- 2 docs on file
- Reference
- 21/0037/FUL
We flagged 1 thing worth checking at 109 Brook 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£117,000
Modelled from EPC, postcode comparables.
£43,000
Recorded with HM Land Registry.
Sales timeline
19 November 2020Most recent
£43,000
Median price across the last 5 sales in CF42 5SF: £100,000 (2025–2023).
Nearby sales in CF42 5SF
95 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Mar 2025
£130,00090 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Nov 2024
£55,000141 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Oct 2024
£127,000131 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Oct 2024
£100,00099 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Jun 2023
£65,000
Everything we know about 109 Brook 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 Brook Street homes
On epc rating, 109 Brook Street runs well behind the street norm.
Price per m²
£606
Street avg £755
Floor Area
71 m²
Street avg 86 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
9.3 t/year
Street avg 4.8 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
Steps — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.