66 Windway Road, Cardiff, CF5 1AG
About 66 Windway Road
66 Windway Road is a mid-terrace house in Cardiff (CF5 1AG). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (September 2023) shows an E (score 52), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2013. Between certificates, window efficiency went from Very Poor to Average. The recommended improvements would lift it to C (score 77), a 2-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1999–2013, sale prices on this property compounded at 8.1% per year. Today's modelled estimate of £357,000 sits 64.1% above the 2013 sale of £217,500. Last sold in October 2013, so it's been off the market for around 13 years.
Energy performance
66 Windway Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Certificate validity
Valid until 21 September 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Roof insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
66 Windway Road has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
66 Windway Road has more than tripled in price since its earliest registered sale in 1999.
£357,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.1% per year over 15 years.
£217,500
Growth on file: 8.1% per year over 15 years.
Sales timeline
17 October 2013Most recent
£217,500
+34.3%over 9 years12 March 2004
£162,000
+133.1%over 4 years24 March 1999
£69,500
Median price across the last 5 sales in CF5 1AG: £356,000 (2026–2024).
Versus other Windway Road homes
CO₂ Emissions for 66 Windway Road lags the street by a wide margin.
Price per m²
£1,908
Street avg £2,578
Floor Area
114 m²
Street avg 103 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
6.3 t/year
Street avg 4.4 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
426/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Windway Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







