9 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
About 9 Llwyn Mallt
9 Llwyn Mallt is a four-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HW). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (March 2018) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump. Other recorded features include outbuildings. The home occupies a cul-de-sac position.
Last sale on file: £322,000 in March 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. At 131 m² it's 17.5% larger than the typical home in the postcode (112 m² median across 12 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Across 1999–2021, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £410,000 is 27.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 43.6% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms1
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenYes
- GarageYes
- OutbuildingsYes
- Cul-de-sacYes
Energy performance
9 Llwyn Mallt's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has permanent outbuildings, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
9 Llwyn Mallt 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 Llwyn Mallt has more than doubled in price since the earliest registered sale in 1999.
£410,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.1% per year over 22 years.
£322,000
Growth on file: 5.1% per year over 22 years.
Sales timeline
12 March 2021Most recent
£322,000
+7.7%over 2 years23 August 2018
£299,000
+139.2%over 16 years22 February 2002
£125,000
+15.7%over 3 years12 February 1999
£108,000
Median price across the last 5 sales in CF15 7HW: £300,000 (2022–2015).
Nearby sales in CF15 7HW
20 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
Sold Dec 2022
£405,0001 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
Sold Dec 2021
£352,99514 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
Sold Nov 2019
£300,00016 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
Sold Mar 2015
£269,95012 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW
Sold Oct 2014
£237,000
Versus other Llwyn Mallt homes
9 Llwyn Mallt is notably below the street on co₂ emissions.
Price per m²
£2,458
Street avg £2,191
Floor Area
131 m²
Street avg 115 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
7.0 t/year
Street avg 4.8 t/year
Similar properties nearby
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Bute Villa, Taffs Well
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1 Cwm Gwynlais, Tongwynlais
CF15 7HU
1 Beechwood Road, Taffs Well
CF15 7RZ
1 Birch Hill, Tongwynlais
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1 Forest Cottage, Castle Road, Tongwynlais
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1 Cules Terrace, Taffs Well
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1 Bute 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
Cwm Gwynlais — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







