First Floor Flat, 1 Gileston Road, Cardiff, CF11 9JS
About First Floor Flat
First Floor Flat is an end-of-terrace house in Cardiff (CF11 9JS). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to before 1900. The latest certificate (October 2020) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78).
At 67 m² it sits well below the postcode median (127 m² across 14 EPCs), making it one of the more compact homes locally. Across 2017–2021, sale prices on this property compounded at 7.6% per year. Today's modelled estimate of £266,000 is 10.9% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£333/sq ft) was about 43.1% above the typical sold price in the postcode. Most recent transfer: January 2021 at £239,950. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
EPC Rating
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Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
First Floor Flat has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£266,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 3 years.
£239,950
Growth on file: 7.6% per year over 3 years.
Sales timeline
8 January 2021Most recent
£239,950
+26.3%over 3 years1 November 2017
£190,000
Median price across the last 5 sales in CF11 9JS: £476,500 (2023–2021).
Nearby sales in CF11 9JS
Versus other Gileston Road homes
First Floor Flat outperforms the street on epc rating by a wide margin.
EPC Rating
63 (D)
Street avg 60 (D)
Floor Area
67 m²
Street avg 70 m²
CO₂ Emissions
3.2 t/year
Street avg 3.6 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Halfway Hotel — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







