10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
About 10 Wyndham Street
10 Wyndham Street is a three-bedroom mid-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7LN). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (November 2024) shows a C (score 74). When first surveyed in October 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and window efficiency went from Poor to Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to B (score 87). Other recorded features include a loft.
At 102 m² the property is well over the postcode median (67 m² across 6 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 83% of similar EPCs). A recent sale: £306,000 in July 2025. Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved. Across 2001–2025, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£279/sq ft) was about 22.3% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- LoftYes
Outside
- Private gardenYes
Building
- Heating systemGas
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
10 Wyndham Street has an approved single-storey side and rear extension on the planning record.
1 application on record at 10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
- Feb 2021ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
SINGLE STOREY SIDE AND REAR EXTENSION
- Documents
- 9 docs on file
- Reference
- 20/02525/DCH
Unlock 10 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 10 Wyndham Street was the highest on Land Registry record across the postcode.
£305,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 24 years.
£306,000
Growth on file: 6.0% per year over 24 years.
Sales timeline
20 July 2025Most recent
£306,000
+70.0%over 11 years13 December 2013
£180,000
+55.2%over 9 years17 December 2003
£115,950
+54.6%over 2 years26 April 2001
£75,000
Median price across the last 5 sales in CF15 7LN: £190,000 (2025–2016).
Nearby sales in CF15 7LN
6 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Jan 2025
£225,00012 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Aug 2023
£156,0009 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Dec 2019
£238,50013 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Sept 2015
£254,9234 Wyndham Street, Tongwynlais, Cardiff, CF15 7LN
Sold Nov 2005
£159,950
Versus other Wyndham Street homes
On years held, 10 Wyndham Street runs well behind the street norm.
Price per m²
£3,000
Street avg £2,693
Floor Area
102 m²
Street avg 73 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 4.2 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Wyndham Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







