21 Queen Street, Tongwynlais, Cardiff, CF15 7NL
About 21 Queen Street
21 Queen Street is a three-bedroom mid-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7NL). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (July 2012) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 88), a 2-band jump. The latest certificate is from July 2012, so improvements made since then won't be reflected.
Across 2004–2013, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £279,000 sits 52.5% above the 2013 sale of £183,000. On a £-per-square-foot basis, the last sale (£205/sq ft) was about 20% above the typical sold price in the postcode. Last sold in November 2013, so it's been off the market for around 13 years.
What this property has
Inside
- Bedrooms3
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This certificate is over 10 years old and is no longer valid.Expired 12 Jul 2022
EPC Rating
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 £885 · Includes VAT
Planning history
21 Queen Street 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
21 Queen Street saw 3 transfers in just over a decade — high turnover for the postcode.
£279,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 10 years.
£183,000
Growth on file: 5.5% per year over 10 years.
Sales timeline
29 November 2013Most recent
£183,000
+6.4%over 7 years28 June 2006
£172,000
+56.4%over 2 years20 May 2004
£110,000
Median price across the last 5 sales in CF15 7NL: £321,300 (2025–2021).
Nearby sales in CF15 7NL
29 Queen Street, Tongwynlais, Cardiff, CF15 7NL
Sold Apr 2025
£126,00017 Queen Street, Tongwynlais, Cardiff, CF15 7NL
Sold May 2024
£321,30030 Queen Street, Tongwynlais, Cardiff, CF15 7NL
Sold Sept 2021
£357,50028a, Queen Street, Tongwynlais, Cardiff, CF15 7NL
Sold Jul 2021
£485,00018 Queen Street, Tongwynlais, Cardiff, CF15 7NL
Sold Jun 2021
£263,000
Versus other Queen Street homes
Years Held for 21 Queen Street runs comfortably ahead of the street norm.
Price per m²
£2,205
Street avg £2,365
Floor Area
83 m²
Street avg 100 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.5 t/year
Street avg 4.7 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Michael`s Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







