Blackweir House, Flat 3, Blackweir Terrace, Cardiff, CF10 3EQ
About Blackweir House
Blackweir House is an end-of-terrace house in Cardiff (CF10 3EQ). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 2012 onwards and council tax band B. At 38 m² this is the 4th smallest of 8 units on EPC record in Blackweir House, where floor areas span 32–41 m². On EPC score it ranks last in the building (69 versus a best of 79). The latest certificate (June 2022) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since April 2012. Between certificates, wall efficiency went from Good to Very Good. The recommended improvements would push it to B (score 82). Main heating runs on electricity.
At 38 m² it sits well below the postcode median (82 m² across 34 EPCs), making it one of the more compact homes locally.
Everything you need to know about Blackweir House
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Blackweir House has no planning applications on record.
But the area is active
6 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Blackweir House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£137,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF10 3EQ: £314,000 (2024–2022).
Nearby sales in CF10 3EQ
33 Blackweir Terrace, Cardiff, CF10 3EQ
Sold Apr 2024
£360,00045 Blackweir Terrace, Cardiff, CF10 3EQ
Sold Feb 2023
£290,00015 Blackweir Terrace, Cardiff, CF10 3EQ
Sold Oct 2022
£445,00041 Blackweir Terrace, Cardiff, CF10 3EQ
Sold May 2022
£230,55257 Blackweir Terrace, Cardiff, CF10 3EQ
Sold Jan 2022
£314,000
Versus other Blackweir Terrace homes
On co₂ emissions, Blackweir House runs well behind the street norm.
EPC Rating
69 (C)
Street avg 73 (C)
Floor Area
38 m²
Street avg 38 m²
CO₂ Emissions
1.6 t/year
Street avg 1.3 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about Blackweir House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Blackweir — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.