17 Gwendoline Street, Treherbert, Treorchy, CF42 5BW
About 17 Gwendoline Street
17 Gwendoline Street is a three-bedroom mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5BW). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (May 2017) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 87), a 2-band jump.
Untraded for 21 years, with the last transfer in February 2005. Across 2002–2005, sale prices on this property compounded at 94.6% per year. Today's modelled estimate of £118,000 sits 100% above the 2005 sale of £59,000. At 110 m² it's 19.6% larger than the typical home in the postcode (92 m² median across 23 EPCs).
Know exactly what you're buying at 17 Gwendoline 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
- Dining roomYes
Building
- Heating systemGas
Energy performance
17 Gwendoline Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
17 Gwendoline Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 2 things worth checking at 17 Gwendoline 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
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
Price for 17 Gwendoline Street has grown more than fourfold since the 2002 starting point.
£118,000
Modelled from EPC, postcode comparables and a sale-price growth of 94.6% per year over 3 years.
£59,000
Growth on file: 94.6% per year over 3 years.
Sales timeline
23 February 2005Most recent
£59,000
+52.8%over 1 year5 August 2003
£38,600
+286.0%over 1 year25 June 2002
£10,000
Median price across the last 5 sales in CF42 5BW: £65,500 (2024–2019).
Nearby sales in CF42 5BW
10 Gwendoline Street, Treherbert, Treorchy, CF42 5BW
Sold Jun 2024
£132,50093a, Gwendoline Street, Treherbert, Treorchy, CF42 5BW
Sold Jan 2024
£35,0004 Gwendoline Street, Treherbert, Treorchy, CF42 5BW
Sold Jan 2023
£216,00093 Gwendoline Street, Treherbert, Treorchy, CF42 5BW
Sold Mar 2022
£65,50095 Gwendoline Street, Treherbert, Treorchy, CF42 5BW
Sold Dec 2019
£65,000
Everything we know about 17 Gwendoline 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
- Recent ownership pattern worth a look

Versus other Gwendoline Street homes
On years held, 17 Gwendoline Street stands well clear of the street.
Price per m²
£536
Street avg £735
Floor Area
110 m²
Street avg 92 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
6.1 t/year
Street avg 5.1 t/year
Similar properties nearby
1 Crichton Street, Treherbert
CF42 5RA
1 Coldra Road, Treherbert
CF42 5ST
1 David Street, Treherbert
CF42 5LB
1 Brynfedwen Close, Treherbert
CF42 5PB
1 Blaen Y Cwm Terrace, Treherbert
CF42 5ND
1 Brook Street, Blaenrhondda
CF42 5SG
1 Cwrt Yr Ysgol, Treherbert
CF42 5PX
1 Bryn Wyndham Terrace, Treherbert
CF42 5NG
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
0.1 km
Wyndham Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.