Windsor House, Flat 18, Westgate Street, Cardiff, CF10 1DG
About Windsor House
Windsor House is a semi-detached house in Cardiff (CF10 1DG). It has a recorded floor area of 23 m² (around 248 sq ft), construction records dating it to 1900-1929 and council tax band C. At 23 m² this is the smallest unit on EPC record across Windsor House (23–81 m²). The building's EPC ratings span E to C across 18 units on file. The latest certificate (July 2020) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2009. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good.
Across 2005–2013, sale prices on this property compounded at -1.6% per year. Today's modelled estimate of £112,000 sits 111.3% above the 2013 sale of £53,000. At 23 m² it sits well below the postcode median (56 m² across 17 EPCs), making it one of the more compact homes locally. Last sold in March 2013, so it's been off the market for around 13 years.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Window efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Windsor House has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
£112,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.6% per year over 8 years.
£53,000
Growth on file: -1.6% per year over 8 years.
Sales timeline
28 March 2013Most recent
£53,000
-11.7%over 7 years13 September 2005
£60,000
Median price across the last 5 sales in CF10 1DG: £179,950 (2023–2022).
Nearby sales in CF10 1DG
Windsor House, Flat 3, Westgate Street, Cardiff, CF10 1DG
Sold Nov 2023
£140,000Windsor House, Flat 2, Westgate Street, Cardiff, CF10 1DG
Sold Sept 2023
£165,600Windsor House, Flat 11, Westgate Street, Cardiff, CF10 1DG
Sold Jun 2023
£205,000Windsor House, Flat 5, Westgate Street, Cardiff, CF10 1DG
Sold Mar 2023
£197,291Windsor House, Flat 9, Westgate Street, Cardiff, CF10 1DG
Sold Aug 2022
£179,950
Versus other Westgate Street homes
Windsor House is notably below the street on floor area.
Price per m²
£2,304
Street avg £2,348
Floor Area
23 m²
Street avg 55 m²
Habitable Rooms
1 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.4 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Westgate Street KD — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







