15 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
About 15 Cwmsaerbren Street
15 Cwmsaerbren Street is a three-bedroom mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5HY). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (April 2017) shows an E (score 40), well below the UK norm with real room to improve. Earlier certificates rated it D (May 2015); the latest reading is one band lower. Between certificates, roof efficiency dropped from Good to Very Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 76), a 2-band jump.
Today's modelled estimate of £117,000 sits 178.6% above the 2016 sale of £42,000. On a £-per-square-foot basis, the last sale (£46/sq ft) was about 24.1% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). On the market in March 2016 and unlisted since — roughly 10 years.
Know exactly what you're buying at 15 Cwmsaerbren 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
15 Cwmsaerbren Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Heating controls changed
Planning history
15 Cwmsaerbren Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 15 Cwmsaerbren 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
15 Cwmsaerbren Street valuation sits well clear of the typical sold price in this postcode.
£117,000
Modelled from EPC, postcode comparables.
£42,000
Recorded with HM Land Registry.
Sales timeline
29 March 2016Most recent
£42,000
Median price across the last 5 sales in CF42 5HY: £85,000 (2025–2017).
Nearby sales in CF42 5HY
1 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
Sold Feb 2025
£86,0003 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
Sold Nov 2022
£120,00017 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
Sold Nov 2020
£85,0008 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
Sold Mar 2019
£84,50024 Cwmsaerbren Street, Treherbert, Treorchy, CF42 5HY
Sold Dec 2017
£61,000
Everything we know about 15 Cwmsaerbren 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 Cwmsaerbren Street homes
15 Cwmsaerbren Street is notably below the street on epc rating.
Price per m²
£500
Street avg £818
Floor Area
84 m²
Street avg 87 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
8.4 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 Chapel Street, Blaenrhondda
CF42 5SE
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
Treherbert Rail Station — railway station.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.