15 Maldwyn Street, Cardiff, CF11 9JR
About 15 Maldwyn Street
15 Maldwyn Street is a mid-terrace house in Cardiff (CF11 9JR). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1900-1929 and council tax band C. At 54 m² this is the 4th smallest of 14 units on EPC record in the building, where floor areas span 48–140 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (July 2025) shows a C (score 71). When first surveyed in March 2012 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 Average.
At 54 m² it sits well below the postcode median (78 m² across 13 EPCs), making it one of the more compact homes locally. Across 2001–2015, sale prices on this property compounded at 3.5% per year. Today's modelled estimate of £354,000 is 41.6% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£430/sq ft) was about 283.6% above the typical sold price in the postcode. Last changed hands 11 years ago, in August 2015.
Everything you need to know about 15 Maldwyn Street
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
15 Maldwyn Street 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
15 Maldwyn Street valuation sits well clear of the typical sold price in this postcode.
£354,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.5% per year over 14 years.
£250,000
Growth on file: 3.5% per year over 14 years.
Sales timeline
11 August 2015Most recent
£250,000
-11.5%over 11 years13 February 2004
£282,500
+81.1%over 2 years16 November 2001
£156,000
Median price across the last 5 sales in CF11 9JR: £185,000 (2021–2013).
Nearby sales in CF11 9JR
11 Maldwyn Street, Cardiff, CF11 9JR
Sold Nov 2021
£515,000Flat A, 21 Maldwyn Street, Cardiff, CF11 9JR
Sold Sept 2021
£185,00017 Maldwyn Street, Cardiff, CF11 9JR
Sold Jun 2019
£375,00021 Maldwyn Street, Cardiff, CF11 9JR
Sold Aug 2017
£163,500Flat A, 3 Maldwyn Street, Cardiff, CF11 9JR
Sold Nov 2013
£150,000
Versus other Maldwyn Street homes
15 Maldwyn Street is notably below the street on habitable rooms.
Price per m²
£4,630
Street avg £2,892
Floor Area
54 m²
Street avg 62 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.8 t/year
Everything you need to know about 15 Maldwyn Street
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
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Similar properties nearby
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.