84 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
About 84 Gwendoline Street
84 Gwendoline Street is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5BP). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (August 2019) shows a C (score 77), near the top of the C band. When first surveyed in September 2013 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 87).
Across 2002–2014, sale prices on this property compounded at 3% per year. Today's modelled estimate of £123,000 sits 237% above the 2014 sale of £36,500. On a £-per-square-foot basis, the last sale (£45/sq ft) was about 19.6% below the postcode norm. Last sold in March 2014, so it's been off the market for around 12 years.
Know exactly what you're buying at 84 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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Planning history
84 Gwendoline Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 84 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
30-day money-back guarantee
Sales history & valuation
84 Gwendoline Street's modelled value sits at over four times its earliest registered sale price (2002).
£123,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.0% per year over 12 years.
£36,500
Growth on file: 3.0% per year over 12 years.
Sales timeline
14 March 2014Most recent
£36,500
+40.4%over 11 years22 August 2002
£26,000
Median price across the last 5 sales in CF42 5BP: £79,995 (2025–2023).
Nearby sales in CF42 5BP
68 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
Sold May 2025
£86,50089 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
Sold Oct 2023
£53,00085 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
Sold Aug 2023
£79,99591 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
Sold Aug 2023
£85,00082 Gwendoline Street, Treherbert, Treorchy, CF42 5BP
Sold Feb 2023
£65,000
Everything we know about 84 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

Versus other Gwendoline Street homes
EPC Rating for 84 Gwendoline Street runs comfortably ahead of the street norm.
Price per m²
£480
Street avg £718
Floor Area
76 m²
Street avg 85 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 5.5 t/year
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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
Gwendoline Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.