40 Mill Road, Tongwynlais, Cardiff, CF15 7JP
About 40 Mill Road
40 Mill Road is a three-bedroom semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7JP). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (February 2021) shows a C (score 73). The recommended improvements would push it to B (score 83).
At 101 m² the property is well over the postcode median (76 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Sold June 2021 for £355,000. Across the public record there are 7 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. Across 1996–2021, sale prices on this property compounded at 7.3% per year. Today's modelled estimate of £391,000 is 10.1% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£327/sq ft) was about 106.4% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenYes
- ParkingOff road
Building
- Central heatingYes
Energy performance
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
40 Mill Road 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
Latest sale on 40 Mill Road was the highest on Land Registry record across the postcode.
£391,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.3% per year over 25 years.
£355,000
Growth on file: 7.3% per year over 25 years.
Sales timeline
29 June 2021Most recent
£355,000
+88.8%over 13 years27 March 2008
£188,000
-3.6%14 March 2008
£195,000
+2.1%over 1 year11 May 2006
£191,000
+75.2%over 3 years12 September 2002
£109,000
+23.9%over 1 year8 April 2001
£88,000
+44.0%over 4 years1 August 1996
£61,100
Median price across the last 5 sales in CF15 7JP: £260,000 (2024–2018).
Nearby sales in CF15 7JP
7 Mill Road, Tongwynlais, Cardiff, CF15 7JP
Sold Apr 2024
£240,00048 Mill Road, Tongwynlais, Cardiff, CF15 7JP
Sold Apr 2024
£344,00020 Mill Road, Tongwynlais, Cardiff, CF15 7JP
Sold Dec 2022
£271,00042 Mill Road, Tongwynlais, Cardiff, CF15 7JP
Sold Mar 2018
£260,00028 Mill Road, Tongwynlais, Cardiff, CF15 7JP
Sold Aug 2017
£292,500
Versus other Mill Road homes
40 Mill Road outperforms the street on epc rating by a wide margin.
Price per m²
£3,515
Street avg £2,553
Floor Area
101 m²
Street avg 88 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.1 t/year
Street avg 4.5 t/year
Similar properties nearby
1 Forest Cottage, Castle Road, Tongwynlais
CF15 7JR
1 Bute Street, Tongwynlais
CF15 7LJ
1 Church Lane, Nantgarw
CF15 7TQ
1 Church Street, Taffs Well
CF15 7PG
1 Clos Llewellyn, Taffs Well
CF15 7AT
1 Bute Villa, Taffs Well
CF15 7QP
1 Cwm Gwynlais, Tongwynlais
CF15 7HU
1 Castle Road, Tongwynlais
CF15 7JQ
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lewis Arms — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







