17 Grants Close, Tongwynlais, Cardiff, CF15 7NG
About 17 Grants Close
17 Grants Close is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7NG). It has a recorded floor area of 112 m² (around 1209 sq ft) and council tax band F. The latest certificate (August 2010) shows a C (score 80), near the top of the C band. The recommended improvements would push it to B (score 82). The latest certificate is from August 2010, so improvements made since then won't be reflected.
One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved. On the market in October 2011 and unlisted since — roughly 15 years. Today's modelled estimate of £396,000 is 46.7% above the 2011 sale price.
Energy performance
17 Grants Close's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 31 Aug 2020
EPC Rating
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Planning history
17 Grants Close has an approved single-storey rear extension on the planning record.
1 application on record at 17 Grants Close, Tongwynlais, Cardiff, CF15 7NG
- Jan 2021ExtensionFullOutcome in report
Extension: Single storey · Rear of property
SINGLE STOREY REAR EXTENSION
- Documents
- 14 docs on file
- Reference
- 20/02536/DCH
Unlock 17 Grants Close, Tongwynlais, Cardiff, CF15 7NG's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 14 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
17 Grants Close valuation sits well clear of the typical sold price in this postcode.
£396,000
Modelled from EPC, postcode comparables.
£270,000
Recorded with HM Land Registry.
Sales timeline
27 October 2011Most recent
£270,000
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
On co₂ emissions, 17 Grants Close stands well clear of the street.
Price per m²
£2,404
Street avg £2,355
Floor Area
112 m²
Street avg 121 m²
CO₂ Emissions
2.4 t/year
Street avg 2.8 t/year
Years Held
15 years
Street avg 12 years
Similar properties nearby
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1 Cross Street, Tongwynlais
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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.







