4 Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
About 4 Abertonllwyd Street
4 Abertonllwyd Street is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5PF). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (January 2024) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in June 2013 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Average to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Across 2003–2013, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £117,000 sits 254.5% above the 2013 sale of £33,000. On a £-per-square-foot basis, the last sale (£44/sq ft) was about 37.7% below the postcode norm. Last changed hands 13 years ago, in November 2013. Across the public record there are 4 sales, relatively high churn for a single property.
Know exactly what you're buying at 4 Abertonllwyd 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
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Roof insulation improved
More low energy lighting installed
Planning history
4 Abertonllwyd Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 4 Abertonllwyd 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
4 Abertonllwyd Street's modelled value sits at over four times its earliest registered sale price (2003).
£117,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 10 years.
£33,000
Growth on file: 4.9% per year over 10 years.
Sales timeline
7 November 2013Most recent
£33,000
-30.5%over 9 years5 March 2004
£47,500
+58.3%17 December 2003
£30,000
+50.0%over 7 months13 May 2003
£20,000
Median price across the last 5 sales in CF42 5PF: £98,000 (2025–2018).
Nearby sales in CF42 5PF
Bethany Baptist Chapel, Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
Sold Sept 2025
£380,0005 Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
Sold Apr 2025
£98,0009 Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
Sold Jul 2019
£65,00015 Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
Sold Dec 2018
£67,0002 Abertonllwyd Street, Treherbert, Treorchy, CF42 5PF
Sold Sept 2018
£60,000
Everything we know about 4 Abertonllwyd 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 Abertonllwyd Street homes
4 Abertonllwyd Street is notably below the street on price per m².
Price per m²
£478
Street avg £923
Floor Area
69 m²
Street avg 99 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.9 t/year
Street avg 5.4 t/year
Similar properties nearby
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1 Abertonllwyd Street, Treherbert
CF42 5PF
1 Blaen Y Cwm Road, Blaencwm
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1 Corbett Street, Treherbert
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1 Cwmsaerbren Flats, Treherbert
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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
Dunraven Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.