9 Brook Street, Treorchy, CF42 6PS
About 9 Brook Street
9 Brook Street is a mid-terrace house in Treorchy (CF42 6PS). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (October 2025) shows a C (score 70). When first surveyed in February 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 89).
Across 1998–2025, sale prices on this property compounded at 4.2% per year. Today's modelled estimate of £125,000 sits 95.3% above the 2025 sale of £64,000. On a £-per-square-foot basis, the last sale (£103/sq ft) was about 37.9% above the typical sold price in the postcode. A recent sale: £64,000 in May 2025. Its energy rating outperforms most of the postcode (better than 78% of similar EPCs).
Know exactly what you're buying at 9 Brook Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
High performance glazing installed
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
9 Brook Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
9 Brook Street has more than tripled in price since its earliest registered sale in 1998.
£125,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.2% per year over 27 years.
£64,000
Growth on file: 4.2% per year over 27 years.
Sales timeline
22 May 2025Most recent
£64,000
-1.2%over 5 years29 July 2019
£64,750
+24.5%over 5 years22 September 2013
£52,000
+147.6%over 15 years16 January 1998
£21,000
Median price across the last 5 sales in CF42 6PS: £42,500 (2025–2016).
Everything we know about 9 Brook Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Brook Street homes
9 Brook Street outperforms the street on price per m² by a wide margin.
Price per m²
£1,103
Street avg £761
Floor Area
58 m²
Street avg 70 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.8 t/year
Street avg 4.4 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Troerchy Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.