13 Grants Close, Tongwynlais, Cardiff, CF15 7NG
About 13 Grants Close
13 Grants Close is a four-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7NG). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 2007-2011 and council tax band F. The latest certificate (November 2024) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (August 2010); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 88). Other recorded features include a balcony.
Across 2010–2015, sale prices on this property compounded at -1.7% per year. Today's modelled estimate of £392,000 sits 56.8% above the 2015 sale of £249,995. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include a garage conversion, meaningful when judging how the property has evolved. On the market in October 2015 and unlisted since — roughly 11 years. At 102 m² it's 18.4% smaller than the typical home in the postcode (125 m² median across 22 EPCs).
What this property has
Inside
- Bedrooms4
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageIntegral
- BalconyYes
Building
- Heating systemGas
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system changed
Loft insulation upgraded to recommended levels
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Planning history
2 applications on record at 13 Grants Close, Tongwynlais, Cardiff, CF15 7NG
- Sept 2013ConversionOutlineOutcome in report
CONVERSION OF EXISTING ADJOINING SINGLE GARAGE TO RESIDENTIAL DWELLING SPACE. REPLACEMENT OF GARAGE DOOR WITH UPVC WINDOW TO MATCH EXISTING WINDOWS, AND DWARF WALL TO MATCH EXISTING FINISHES.
- Documents
- 5 docs on file
- Reference
- 13/01549/DCH
- More recent applications — locked
- Garage ConversionDec 2013Decision
Unlock 13 Grants Close, Tongwynlais, Cardiff, CF15 7NG's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 10 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
13 Grants Close valuation sits well clear of the typical sold price in this postcode.
£392,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.7% per year over 5 years.
£249,995
Growth on file: -1.7% per year over 5 years.
Sales timeline
8 October 2015Most recent
£249,995
-8.1%over 4 years26 November 2010
£272,000
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
Floor Area for 13 Grants Close lags the street by a wide margin.
Price per m²
£2,451
Street avg £2,352
Floor Area
102 m²
Street avg 122 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.8 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.







