1a, Boleyn Walk, Cardiff, CF23 5HR
About 1a
1a is a two-bedroom end-of-terrace house in Cardiff (CF23 5HR). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (February 2019) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since August 2011. Between certificates, hot-water efficiency went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 3-band jump. Other recorded features include a loft.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 11 years since the last transfer (August 2015). Across the public record there are 4 sales, relatively high churn for a single property. Across 2000–2015, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £326,000 is 38.7% above the 2015 sale price.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Open-plan layoutYes
- LoftYes
Outside
- Private gardenYes
- DrivewayYes
Building
- Heating systemGas
Energy performance
1a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
1a 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
Sale price has at least doubled since 2000.
£326,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 15 years.
£235,000
Growth on file: 7.4% per year over 15 years.
Sales timeline
26 August 2015Most recent
£235,000
+34.3%over 8 years23 August 2007
£175,000
+6.4%over 3 years7 November 2003
£164,500
+108.2%over 3 years25 May 2000
£79,000
Median price across the last 5 sales in CF23 5HR: £290,000 (2023–2014).
Versus other Boleyn Walk homes
EPC Rating for 1a lags the street by a wide margin.
Price per m²
£2,733
Street avg £3,595
Floor Area
86 m²
Street avg 101 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.9 t/year
Street avg 3.9 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Melrose Court — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







