Flat 1, 40 Hamilton Street, Cardiff, CF11 9BP
About Flat 1
Flat 1 is a property in Cardiff (CF11 9BP). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1900-1929 and council tax band C. At 29 m² this is the 2nd smallest of 4 units on EPC record in the building, where floor areas span 27–35 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (67 versus a best of 76). The latest certificate (July 2025) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72).
At 29 m² it sits well below the postcode median (141 m² across 50 EPCs), making it one of the more compact homes locally.
Energy performance
Flat 1's carbon output is low for the local stock.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 1 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
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£144,000
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 9BP: £585,000 (2024–2022).
Nearby sales in CF11 9BP
Versus other Hamilton Street homes
Flat 1 is notably below the street on floor area.
EPC Rating
67 (D)
Street avg 69 (C)
Floor Area
29 m²
Street avg 66 m²
CO₂ Emissions
1.5 t/year
Street avg 2.4 t/year
Habitable Rooms
1 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Sophia Gardens — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







