46b, Hamilton Street, Cardiff, CF11 9BP
About 46b
46b is a mid-terrace house in Cardiff (CF11 9BP). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2025) shows a C (score 76), near the top of the C band. When first surveyed in November 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Poor, hot-water efficiency went from Average to Good and main heating went from Average to Good; while lighting dropped from Very Good to Good. The recommended improvements would push it to B (score 81). At 64 m² this is the 8th smallest of 51 units on EPC record in the building, where floor areas span 27–192 m². The building's EPC ratings span E to B across 51 units on file.
At 64 m² it sits well below the postcode median (141 m² across 50 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 72% of similar EPCs).
Energy performance
46b's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Single glazing replaced with double or better glazing
Low energy lighting percentage decreased
Heating controls changed
More low energy lighting installed
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Low energy lighting percentage decreased
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
46b 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
46b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£211,000
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
46b outperforms the street on epc rating by a wide margin.
EPC Rating
76 (C)
Street avg 69 (D)
Floor Area
64 m²
Street avg 64 m²
CO₂ Emissions
1.5 t/year
Street avg 2.4 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Similar properties nearby
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.







