1 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
About 1 Brook Street
1 Brook Street is a two-bedroom end-of-terrace house in Blaenrhondda, Treorchy, Treorchy (CF42 5SG). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (April 2020) shows a D (score 59), a step below the typical UK home. When first surveyed in December 2010 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Very Poor to Good and hot-water efficiency went from Average to Very Good. The recommended improvements would lift it to B (score 88), a 2-band jump.
Across 2023–2024, sale prices on this property compounded at 24.8% per year. Today's modelled estimate of £111,000 is 13.3% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£142/sq ft) was about 214.5% above the typical sold price in the postcode. At 64 m² it's 20.5% smaller than the typical home in the postcode (81 m² median across 20 EPCs). Sold September 2024 for £98,000.
Know exactly what you're buying at 1 Brook 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
- Bathrooms1
Outside
- Private gardenYes
Building
- RefurbishedYes
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
Single glazing replaced with double or better glazing
Roof insulation improved
Solar water heating installed
Planning history
1 Brook Street has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 2 things worth checking at 1 Brook 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
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
1 Brook Street changed hands twice within eighteen months — unusual for the area.
£111,000
Modelled from EPC, postcode comparables and a sale-price growth of 24.8% per year over 1 year.
£98,000
Growth on file: 24.8% per year over 1 year.
Sales timeline
5 September 2024Most recent
£98,000
+37.1%over 1 year5 April 2023
£71,500
Median price across the last 5 sales in CF42 5SG: £75,000 (2024–2022).
Nearby sales in CF42 5SG
3 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Oct 2024
£114,0004 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Apr 2023
£48,91416 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Nov 2022
£103,0007 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold Sept 2020
£115,00010 Brook Street, Blaenrhondda, Treorchy, CF42 5SG
Sold May 2017
£47,000
Everything we know about 1 Brook 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
- Recent ownership pattern worth a look

Versus other Brook Street homes
On floor area, 1 Brook Street runs well behind the street norm.
Price per m²
£1,531
Street avg £725
Floor Area
64 m²
Street avg 89 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.6 t/year
Similar properties nearby
1 Crichton Street, Treherbert
CF42 5RA
1 Coldra Road, Treherbert
CF42 5ST
1 David Street, Treherbert
CF42 5LB
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
CF42 5DG
1 Chapel Street, Blaenrhondda
CF42 5SE
The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Blaenrhondda Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.