3 5, Flat 5, Brook Street, Cardiff, CF11 6LG
About 3 5
3 5 is an end-of-terrace house in Cardiff (CF11 6LG). It has a recorded floor area of 54 m² (around 581 sq ft) and construction records dating it to 1900-1929. The latest certificate (January 2025) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since January 2015. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
It hasn't traded since June 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £120,000 sits 50% above the 2009 sale of £80,000. On a £-per-square-foot basis, the last sale (£138/sq ft) was about 29.1% above the typical sold price in the postcode. At 54 m² it sits well below the postcode median (97 m² across 25 EPCs), making it one of the more compact homes locally. One historical planning record sits against the property in 2013.
Energy performance
EPC Rating
Certificate validity
Valid until 11 January 2035
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 application on record at 3 5, Flat 5, Brook Street, Cardiff, CF11 6LG
- Jul 2013ConversionFullOutcome in report
CONVERSION FROM PUBLIC HOUSE TO 10 FLATS
- Documents
- 5 docs on file
- Reference
- 10/00179/W
Unlock 3 5, Flat 5, Brook Street, Cardiff, CF11 6LG'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- Every decision — granted, refused or withdrawn (1 on record)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 10 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£120,000
Modelled from EPC, postcode comparables.
£80,000
Recorded with HM Land Registry.
Sales timeline
29 June 2009Most recent
£80,000
Median price across the last 5 sales in CF11 6LG: £253,200 (2025–2016).
Versus other Brook Street homes
Price per m² for 3 5 runs comfortably ahead of the street norm.
Price per m²
£1,481
Street avg £569
Floor Area
54 m²
Street avg 61 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.0 t/year
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The neighbourhood at a glance
Crime
362/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Despenser Gardens — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







