12 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
About 12 Brook Street
12 Brook Street is a three-bedroom mid-terrace house in Blaenrhondda, Treorchy, Treorchy (CF42 5SG). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (November 2015) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from November 2015, so improvements made since then won't be reflected.
Across 2000–2016, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £122,000 sits 190.5% above the 2016 sale of £42,000. On a £-per-square-foot basis, the last sale (£49/sq ft) was about 17.9% below the postcode norm. Last changed hands 10 years ago, in May 2016.
Know exactly what you're buying at 12 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
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 24 Nov 2025
EPC Rating
Planning history
12 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 12 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
Sale price has at least doubled since 2000.
£122,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 16 years.
£42,000
Growth on file: 4.9% per year over 16 years.
Sales timeline
5 May 2016Most recent
£42,000
+115.4%over 15 years11 May 2000
£19,500
Median price across the last 5 sales in CF42 5SG: £75,000 (2024–2023).
Nearby sales in CF42 5SG
3 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Oct 2024
£114,0001 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Sept 2024
£98,0004 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Apr 2023
£48,91416 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Nov 2022
£103,0007 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Sept 2020
£115,000
Everything we know about 12 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
Price per m²
£525
Street avg £817
Floor Area
80 m²
Street avg 88 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 4.6 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Blaenrhondda Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.