Second Floor, 12 Dyfrig Street, Cardiff, CF11 9LR
About Second Floor
Second Floor is an end-of-terrace house in Cardiff (CF11 9LR). It has a recorded floor area of 25 m² (around 269 sq ft) and construction records dating it to before 1900. The latest certificate (November 2020) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (October 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Good; while main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
At 25 m² it sits well below the postcode median (57 m² across 16 EPCs), making it one of the more compact homes locally.
Everything you need to know about Second Floor
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Low energy lighting percentage decreased
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating controls changed
Hot water system changed
Windows upgraded, improving insulation
Wall insulation improved
Heating controls upgraded for better temperature management
Hot water system upgraded
Heating system changed
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system changed
Windows upgraded, improving insulation
Roof insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Second Floor has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Second Floor has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£145,000
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 CF11 9LR: £600,000 (2025–2012).
Nearby sales in CF11 9LR
Versus other Dyfrig Street homes
On floor area, Second Floor runs well behind the street norm.
EPC Rating
59 (D)
Street avg 55 (E)
Floor Area
25 m²
Street avg 52 m²
CO₂ Emissions
1.7 t/year
Street avg 3.0 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
Everything you need to know about Second Floor
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
Similar properties nearby
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Berthwin Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.