1 John Street, Treherbert, Treorchy, CF42 5HH
About 1 John Street
1 John Street is a two-bedroom end-of-terrace house in Treherbert, Treorchy, Treorchy (CF42 5HH). It has a recorded floor area of 74 m² (around 802 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (April 2011) shows a D (score 56), a step below the typical UK home. The latest certificate is from April 2011, so improvements made since then won't be reflected.
It hasn't traded since February 2011, a hold of 15 years that's notably long for the area. Across 2005–2011, sale prices on this property compounded at -3.3% per year. Today's modelled estimate of £108,000 sits 151.2% above the 2011 sale of £43,000. On a £-per-square-foot basis, the last sale (£54/sq ft) was about 37.6% below the postcode norm. At 74 m² it's 18.2% larger than the typical home in the postcode (63 m² median across 7 EPCs).
Know exactly what you're buying at 1 John 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
- Bedrooms2
- CloakroomYes
Outside
- Private gardenRear
- GarageYes
Building
- Heating systemGas
Energy performance
1 John Street's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 Apr 2021
EPC Rating
Planning history
1 John Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 1 John 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
1 John Street valuation sits well clear of the typical sold price in this postcode.
£108,000
Modelled from EPC, postcode comparables and a sale-price growth of -3.3% per year over 6 years.
£43,000
Growth on file: -3.3% per year over 6 years.
Sales timeline
18 February 2011Most recent
£43,000
-17.3%over 5 years14 July 2005
£52,000
Median price across the last 5 sales in CF42 5HH: £82,000 (2023–2018).
Nearby sales in CF42 5HH
2 John Street, Treherbert, Treorchy, CF42 5HH
Sold Jun 2023
£82,0008 John Street, Treherbert, Treorchy, CF42 5HH
Sold Jan 2023
£97,0004 John Street, Treherbert, Treorchy, CF42 5HH
Sold Sept 2021
£85,0007 John Street, Treherbert, Treorchy, CF42 5HH
Sold Jun 2018
£70,000Brockwell, John Street, Treherbert, Treorchy, CF42 5HH
Sold Feb 2003
£72,000
Everything we know about 1 John 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 John Street homes
1 John Street outperforms the street on floor area by a wide margin.
Price per m²
£577
Street avg £1,164
Floor Area
74 m²
Street avg 65 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.7 t/year
Similar properties nearby
1 Brook Street, Blaenrhondda
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1 Coldra Road, Treherbert
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1 David Street, Treherbert
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1 Brynfedwen Close, Treherbert
CF42 5PB
1 Blaen Y Cwm Terrace, Treherbert
CF42 5ND
1 Abertonllwyd Street, Treherbert
CF42 5PF
1 Blaen Y Cwm Road, Blaencwm
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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
New Inn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.