10 Grants Close, Tongwynlais, Cardiff, CF15 7NG
About 10 Grants Close
10 Grants Close is a four-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7NG). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 2007 onwards and council tax band F. The latest certificate (November 2015) shows a C (score 77), near the top of the C band. The rating has held steady at C across 3 certificates since August 2010. Between certificates, wall efficiency dropped from Very Good to Good and roof efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 88). The latest certificate is from November 2015, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Held since September 2010 — that's 16 years off the open market, well above the local norm. Today's modelled estimate of £416,000 is 48.6% above the 2010 sale price.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- Cul-de-sacYes
Building
- Previously extendedYes
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 23 Nov 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Heating controls upgraded for better temperature management
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Planning history
10 Grants Close 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
10 Grants Close valuation sits well clear of the typical sold price in this postcode.
£416,000
Modelled from EPC, postcode comparables.
£280,000
Recorded with HM Land Registry.
Sales timeline
23 September 2010Most recent
£280,000
Median price across the last 5 sales in CF15 7NG: £327,500 (2022–2017).
Nearby sales in CF15 7NG
11 Grants Close, Tongwynlais, Cardiff, CF15 7NG
Sold Feb 2022
£385,00018 Grants Close, Tongwynlais, Cardiff, CF15 7NG
Sold Mar 2021
£279,95027 Grants Close, Tongwynlais, Cardiff, CF15 7NG
Sold Jul 2018
£330,00012 Grants Close, Tongwynlais, Cardiff, CF15 7NG
Sold Oct 2017
£327,50019 Grants Close, Tongwynlais, Cardiff, CF15 7NG
Sold May 2017
£255,000
Versus other Grants Close homes
Years Held for 10 Grants Close runs comfortably ahead of the street norm.
Price per m²
£2,240
Street avg £2,362
Floor Area
125 m²
Street avg 121 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
2.8 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Iron Bridge — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







