8 Llewellyn Street, Blaencwm, Treorchy, CF42 5DS
About 8 Llewellyn Street
8 Llewellyn Street is an end-of-terrace house in Blaencwm, Treorchy, Treorchy (CF42 5DS). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (December 2019) returns a B (score 84), comfortably above the UK average. When first surveyed in February 2009 the rating was E, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Poor to Average and lighting went from Average to Very Good.
It hasn't traded since February 2010, a hold of 16 years that's notably long for the area. At 72 m² it's 17.2% smaller than the typical home in the postcode (87 m² median across 7 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £123,000 sits 89.2% above the 2010 sale of £65,000. On a £-per-square-foot basis, the last sale (£84/sq ft) was about 37.8% above the typical sold price in the postcode.
Know exactly what you're buying at 8 Llewellyn 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
8 Llewellyn Street ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Roof insulation improved
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
8 Llewellyn Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 8 Llewellyn 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
8 Llewellyn Street valuation sits well clear of the typical sold price in this postcode.
£123,000
Modelled from EPC, postcode comparables.
£65,000
Recorded with HM Land Registry.
Sales timeline
12 February 2010Most recent
£65,000
Median price across the last 5 sales in CF42 5DS: £55,000 (2020–2003).
Everything we know about 8 Llewellyn 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 Llewellyn Street homes
EPC Rating for 8 Llewellyn Street runs comfortably ahead of the street norm.
EPC Rating
84 (B)
Street avg 61 (D)
Floor Area
72 m²
Street avg 84 m²
CO₂ Emissions
2.2 t/year
Street avg 5.5 t/year
Habitable Rooms
4 rooms
Street avg 4 rooms
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Hendrewen Hotel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.