26 Castleton Avenue, Treherbert, Treorchy, CF42 5SS
About 26 Castleton Avenue
26 Castleton Avenue is a three-bedroom semi-detached house in Treherbert, Treorchy, Treorchy (CF42 5SS). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1996-2002 and council tax band B. Other recorded features include attached land beyond the plot. The latest certificate (January 2017) shows a C (score 72). The recommended improvements would push it to B (score 86).
Today's modelled estimate of £161,000 is 28.8% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£132/sq ft) was about 99% above the typical sold price in the postcode. Last sale on file: £125,000 in August 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 26 Castleton Avenue
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
Outside
- ParkingOff road
- LandYes
Energy performance
EPC Rating
Planning history
26 Castleton Avenue has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 26 Castleton Avenue
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.
£161,000
Modelled from EPC, postcode comparables.
£125,000
Recorded with HM Land Registry.
Sales timeline
11 August 2022Most recent
£125,000
Median price across the last 5 sales in CF42 5SS: £130,000 (2025–2022).
Nearby sales in CF42 5SS
25 Castleton Avenue, Treherbert, Treorchy, CF42 5SS
Sold Jul 2025
£130,00014 Castleton Avenue, Treherbert, Treorchy, CF42 5SS
Sold Jul 2025
£185,000Fernhill House, Castleton Avenue, Treherbert, Treorchy, CF42 5SS
Sold Dec 2023
£395,0003 Castleton Avenue, Treherbert, Treorchy, CF42 5SS
Sold Nov 2022
£130,00015 Castleton Avenue, Treherbert, Treorchy, CF42 5SS
Sold Mar 2022
£72,000
Everything we know about 26 Castleton Avenue, 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 Castleton Avenue homes
26 Castleton Avenue outperforms the street on co₂ emissions by a wide margin.
Price per m²
£1,420
Street avg £968
Floor Area
88 m²
Street avg 111 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 6.4 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Steps — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.