9 Sienna House, Vellacott Close, Cardiff, CF10 4AE
About 9 Sienna House
9 Sienna House is a two-bedroom property in Cardiff (CF10 4AE). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (July 2026) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 2 certificates since July 2010. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition. At 63 m² this is the 6th smallest of 12 units on EPC record in the building, where floor areas span 59–70 m². The building's EPC ratings span C to B, with this unit at the top.
Untraded for 24 years, with the last transfer in June 2002. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs). Today's modelled estimate of £200,000 is 38.9% above the 2002 sale price.
What this property has
Inside
- Bedrooms2
Outside
- ParkingYes
Building
- Central heatingYes
Energy performance
9 Sienna House's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 28 July 2036
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
9 Sienna House 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
9 Sienna House valuation sits well clear of the typical sold price in this postcode.
£200,000
Modelled from EPC, postcode comparables.
£143,950
Recorded with HM Land Registry.
Sales timeline
27 June 2002Most recent
£143,950
Median price across the last 5 sales in CF10 4AE: £165,000 (2023–2021).
Nearby sales in CF10 4AE
11 Sienna House, Vellacott Close, Cardiff, CF10 4AE
Sold Mar 2023
£161,0006 Sienna House, Vellacott Close, Cardiff, CF10 4AE
Sold Feb 2023
£185,00010 Sienna House, Vellacott Close, Cardiff, CF10 4AE
Sold Aug 2022
£179,00012 Sienna House, Vellacott Close, Cardiff, CF10 4AE
Sold Feb 2022
£165,0004 Sienna House, Vellacott Close, Cardiff, CF10 4AE
Sold May 2021
£160,000
Versus other Vellacott Close homes
On years held, 9 Sienna House stands well clear of the street.
Price per m²
£2,285
Street avg £2,391
Floor Area
63 m²
Street avg 64 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.0 t/year
Street avg 1.5 t/year
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The neighbourhood at a glance
Crime
485/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Vellacott Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







