17 Castle Street, Treorchy, CF42 6UY
About 17 Castle Street
17 Castle Street is a three-bedroom mid-terrace house in Treorchy (CF42 6UY). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (July 2019) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2009); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 88), a 2-band jump.
Today's modelled estimate of £123,000 sits 127.8% above the 2014 sale of £54,000. 12 years since the last transfer (July 2014).
Know exactly what you're buying at 17 Castle Street
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
Outside
- Private gardenRear
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
17 Castle Street has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
17 Castle Street valuation sits well clear of the typical sold price in this postcode.
£123,000
Modelled from EPC, postcode comparables.
£54,000
Recorded with HM Land Registry.
Sales timeline
27 July 2014Most recent
£54,000
Median price across the last 5 sales in CF42 6UY: £73,000 (2024–2022).
Nearby sales in CF42 6UY
Everything we know about 17 Castle Street, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Castle Street homes
Price per m²
£711
Street avg £801
Floor Area
76 m²
Street avg 83 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.6 t/year
Similar properties nearby
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
Sunnybank Terrace — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.