17 Clos Glanaber, St Mellons, Cardiff, CF3 0AX
About 17 Clos Glanaber
17 Clos Glanaber is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0AX). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1991-1995 and council tax band B. At 41 m² this is the smallest unit on EPC record across the building (41–90 m²). The building's EPC ratings span C to A across 22 units on file. The latest certificate (February 2026) returns a high B (score 88), putting the home a stone's throw from an A rating. The rating has held steady at B across 2 certificates since October 2012. Between certificates, roof efficiency went from Good to Very Good and hot-water efficiency went from Average to Good; while lighting dropped from Very Good to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
At 41 m² it sits well below the postcode median (66 m² across 21 EPCs), making it one of the more compact homes locally.
Everything you need to know about 17 Clos Glanaber
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Energy performance
17 Clos Glanaber'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
Roof insulation improved
Solar PV panels (40 kWp) installed
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Planning history
17 Clos Glanaber has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
17 Clos Glanaber has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£127,000
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.
Versus other Clos Glanaber homes
Floor Area for 17 Clos Glanaber lags the street by a wide margin.
EPC Rating
88 (B)
Street avg 81 (B)
Floor Area
41 m²
Street avg 44 m²
CO₂ Emissions
0.8 t/year
Street avg 0.9 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Everything you need to know about 17 Clos Glanaber
The true value, the hidden risks and the full sale history, in one report.
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One time fee only - money back guarantee
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Clos Gwlad-Yr-Haf — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.