Marlborough House, Flat 6, Westgate Street, Cardiff, CF10 1DE
About Marlborough House
Marlborough House is a semi-detached house in Cardiff (CF10 1DE). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (January 2014) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2013. Between certificates, hot-water efficiency went from Average to Good and lighting went from Very Poor to Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from January 2014, so improvements made since then won't be reflected. At 69 m² this is the 8th smallest of 15 units on EPC record in Marlborough House, where floor areas span 26–90 m². The building's EPC ratings span G to C across 15 units on file.
Most recent transfer: February 2020 at £137,000. Across the public record there are 4 sales, relatively high churn for a single property. Across 2002–2020, sale prices on this property compounded at 3% per year. Today's modelled estimate of £189,000 is 38% above the 2020 sale price.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 30 Jan 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
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 £820 · Includes VAT
Planning history
Marlborough 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£189,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.0% per year over 18 years.
£137,000
Growth on file: 3.0% per year over 18 years.
Sales timeline
28 February 2020Most recent
£137,000
-14.4%over 7 years23 March 2012
£160,000
-1.8%over 7 years9 March 2005
£163,000
+103.8%over 3 years8 March 2002
£80,000
Median price across the last 5 sales in CF10 1DE: £200,000 (2024–2021).
Nearby sales in CF10 1DE
Marlborough House, Flat 4, Westgate Street, Cardiff, CF10 1DE
Sold Oct 2024
£200,000Marlborough House, Flat 7, Westgate Street, Cardiff, CF10 1DE
Sold Oct 2024
£85,724Marlborough House, Flat 8, Westgate Street, Cardiff, CF10 1DE
Sold Sept 2022
£200,000Marlborough House, Flat 3, Westgate Street, Cardiff, CF10 1DE
Sold Sept 2021
£177,500Marlborough House, Flat 14, Westgate Street, Cardiff, CF10 1DE
Sold Sept 2020
£173,500
Versus other Westgate Street homes
Price per m²
£1,986
Street avg £2,112
Floor Area
69 m²
Street avg 67 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.5 t/year
Street avg 3.3 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
0.1 km
Westgate Street KP — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







