90 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
About 90 Brook Street
90 Brook Street is a mid-terrace house in Blaenrhondda, Treorchy, Treorchy (CF42 5SF). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (August 2025) shows a C (score 77), near the top of the C band. When first surveyed in September 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Good to Very Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 82).
Across 1995–2024, sale prices on this property compounded at 2.8% per year. Today's modelled estimate of £121,000 sits 120% above the 2024 sale of £55,000. On a £-per-square-foot basis, the last sale (£84/sq ft) was about 37.7% above the typical sold price in the postcode. At 61 m² it's 25.6% smaller than the typical home in the postcode (82 m² median across 45 EPCs). Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). Most recent transfer: November 2024 at £55,000.
Know exactly what you're buying at 90 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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Wall insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Heating controls upgraded for better temperature management
High performance glazing installed
Wall insulation improved
Planning history
90 Brook Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 90 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
90 Brook Street has more than doubled in price since the earliest registered sale in 1995.
£121,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.8% per year over 29 years.
£55,000
Growth on file: 2.8% per year over 29 years.
Sales timeline
21 November 2024Most recent
£55,000
+22.2%over 20 years1 August 2004
£45,000
+80.0%over 8 years10 November 1995
£25,000
Median price across the last 5 sales in CF42 5SF: £100,000 (2025–2022).
Nearby sales in CF42 5SF
95 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Mar 2025
£130,000141 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
£65,000114 Brook Street, Blaenrhondda, Treorchy, CF42 5SF
Sold Sept 2022
£67,000
Everything we know about 90 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
Floor Area for 90 Brook Street lags the street by a wide margin.
Price per m²
£902
Street avg £745
Floor Area
61 m²
Street avg 87 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
2.0 t/year
Street avg 5.0 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.