11 Princes Street, Treherbert, Treorchy, CF42 5AL
About 11 Princes Street
11 Princes Street is a mid-terrace house in Treherbert, Treorchy, Treorchy (CF42 5AL). 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 (August 2023) shows a D (score 59), a step below the typical UK home. When first surveyed in October 2013 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Good and hot-water efficiency went from Poor to Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 80).
Across 2015–2017, sale prices on this property compounded at 25.1% per year. Today's modelled estimate of £117,000 sits 172.1% above the 2017 sale of £43,000. On a £-per-square-foot basis, the last sale (£55/sq ft) was about 34.4% below the postcode norm. Last changed hands 9 years ago, in November 2017.
Know exactly what you're buying at 11 Princes 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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
Planning history
11 Princes Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 1 thing worth checking at 11 Princes 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
11 Princes Street's modelled value sits at over four times its earliest registered sale price (2015).
£117,000
Modelled from EPC, postcode comparables and a sale-price growth of 25.1% per year over 2 years.
£43,000
Growth on file: 25.1% per year over 2 years.
Sales timeline
27 November 2017Most recent
£43,000
+61.3%over 2 years11 October 2015
£26,666
Median price across the last 5 sales in CF42 5AL: £65,500 (2025–2020).
Nearby sales in CF42 5AL
1 Princes Street, Treherbert, Treorchy, CF42 5AL
Sold Aug 2025
£54,09014 Princes Street, Treherbert, Treorchy, CF42 5AL
Sold Jul 2025
£95,0004 Princes Street, Treherbert, Treorchy, CF42 5AL
Sold May 2023
£94,00013 Princes Street, Treherbert, Treorchy, CF42 5AL
Sold Jul 2020
£45,0008 Princes Street, Treherbert, Treorchy, CF42 5AL
Sold Nov 2014
£55,000
Everything we know about 11 Princes 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 Princes Street homes
On price per m², 11 Princes Street runs well behind the street norm.
Price per m²
£597
Street avg £924
Floor Area
72 m²
Street avg 73 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
5.1 t/year
Street avg 4.7 t/year
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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
0.0 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.