17 Blaise Place, Cardiff, CF11 6JR
About 17 Blaise Place
17 Blaise Place is a mid-terrace house in Cardiff (CF11 6JR). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (July 2021) shows a C (score 70). When first surveyed in June 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to A (score 92), a 2-band jump.
Across 1995–2016, sale prices on this property compounded at 5.3% per year. Today's modelled estimate of £208,000 is 41.5% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£248/sq ft) was about 51.5% above the typical sold price in the postcode. On the market in March 2016 and unlisted since — roughly 10 years.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 5 July 2031
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
Cavity wall insulation installed
Roof insulation improved
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
17 Blaise Place has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
17 Blaise Place has more than doubled in price since the earliest registered sale in 1995.
£208,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 21 years.
£147,000
Growth on file: 5.3% per year over 21 years.
Sales timeline
30 March 2016Most recent
£147,000
+197.3%over 21 years30 March 1995
£49,450
Median price across the last 5 sales in CF11 6JR: £240,000 (2026–2025).
Nearby sales in CF11 6JR
Versus other Blaise Place homes
Price per m²
£2,673
Street avg £2,788
Floor Area
55 m²
Street avg 66 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.1 t/year
Street avg 2.2 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
362/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
City Gardens — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







