Nant Bran Cottage, Dyffryn, Cardiff, CF5 6SU
About Nant Bran Cottage
Nant Bran Cottage is a detached house in Dyffryn, Cardiff, Cardiff (CF5 6SU). It has a recorded floor area of 105 m² (around 1130 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2024) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2010. Between certificates, wall efficiency went from Very Poor to Good; while roof efficiency dropped from Very Good to Good and hot-water efficiency dropped from Good to Poor. The recommended improvements would push it to D (score 63). Main heating runs on lpg.
Across 2002–2020, sale prices on this property compounded at 0.6% per year. Today's modelled estimate of £452,000 sits 126% above the 2020 sale of £200,000. On a £-per-square-foot basis, the last sale (£177/sq ft) was about 39.9% below the postcode norm. At 105 m² it sits well below the postcode median (190 m² across 15 EPCs), making it one of the more compact homes locally. Most recent transfer: June 2020 at £200,000.
Energy performance
EPC Rating
Certificate validity
Valid until 16 June 2034
Property Improvements
Changes detected from historical EPC data
Fuel source changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
Nant Bran Cottage 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
Nant Bran Cottage's sale-price growth has lagged the wider UK trajectory across its history on file.
£452,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.6% per year over 18 years.
£200,000
Growth on file: 0.6% per year over 18 years.
Sales timeline
29 June 2020Most recent
£200,000
+11.1%over 18 years28 January 2002
£180,000
Median price across the last 5 sales in CF5 6SU: £499,000 (2025–2022).
Nearby sales in CF5 6SU
Maes Y Felin Farm, Dyffryn, Cardiff, CF5 6SU
Sold Dec 2025
£750,000The White House, Dyffryn, Cardiff, CF5 6SU
Sold Oct 2024
£315,000Ty Nant, Dyffryn, Cardiff, CF5 6SU
Sold Jan 2024
£253,334Old Wallace Farm, Dyffryn, Cardiff, CF5 6SU
Sold Jun 2023
£2,506,5001 Home Farm Bungalow, Dyffryn, Cardiff, CF5 6SU
Sold Jan 2022
£499,000
Versus the street
Nant Bran Cottage is notably below the street on price per m².
Price per m²
£1,905
Street avg £4,040
Floor Area
105 m²
Street avg 205 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
3.6 t/year
Street avg 8.2 t/year
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The neighbourhood at a glance
Crime
426/mo
Steady year-on-year across the wider district.
Nearest stop
1.8 km
Ameila Trust Farm — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







