18 Alma Street, Treherbert, Treorchy, CF42 5LY
About 18 Alma Street
18 Alma Street is an end-of-terrace house in Treherbert, Treorchy, Treorchy (CF42 5LY). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2015) shows an F (score 35), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 81), a 4-band jump. The latest certificate is from March 2015, so improvements made since then won't be reflected.
At 111 m² the property is well over the postcode median (83 m² across 13 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Know exactly what you're buying at 18 Alma 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
18 Alma Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 13 Mar 2025
EPC Rating
Planning history
18 Alma Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 18 Alma 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
18 Alma Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£131,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF42 5LY: £42,500 (2022–2012).
Nearby sales in CF42 5LY
11 Alma Street, Treherbert, Treorchy, CF42 5LY
Sold Jun 2022
£132,00013 Alma Street, Treherbert, Treorchy, CF42 5LY
Sold Feb 2015
£25,0003 Alma Street, Treherbert, Treorchy, CF42 5LY
Sold Sept 2012
£42,50014 Alma Street, Treherbert, Treorchy, CF42 5LY
Sold May 2011
£42,0006 Alma Street, Treherbert, Treorchy, CF42 5LY
Sold Mar 2011
£81,000
Everything we know about 18 Alma 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 Alma Street homes
18 Alma Street is notably below the street on co₂ emissions.
EPC Rating
35 (F)
Street avg 63 (D)
Floor Area
111 m²
Street avg 87 m²
CO₂ Emissions
12.0 t/year
Street avg 4.9 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
Similar properties nearby
1 Cwmsaerbren Street, Treherbert
CF42 5HY
1 Ael Y Bryn, Treherbert
CF42 5HD
1 Charles Street, Treherbert
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1 Bute Street, Treherbert
CF42 5NP
1 Clyngwyn Terrace, Blaenrhondda
CF42 5SH
1 Collins Close, Treherbert
CF42 5NH
1 Delwyn Terrace, Blaencwm
CF42 5ED
1 Alma Street, Treherbert
CF42 5LY
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.