9a, The Avenue, Llandaff, Cardiff, CF5 2LP
About 9a
9a is a two-bedroom detached house in Llandaff, Cardiff, Cardiff (CF5 2LP). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to 1900-1929 and council tax band C. At 106 m² this is the 7th smallest of 12 units on EPC record in the building, where floor areas span 52–275 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (April 2021) shows an E (score 49), well below the UK norm with real room to improve. Earlier certificates rated it C (October 2008); the latest reading is 2 bands lower. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to D (score 56).
Today's modelled estimate of £652,000 is 45.2% below the 2010 sale of £1,190,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£1,043/sq ft) was about 243% above the typical sold price in the postcode. It hasn't traded since July 2010, a hold of 16 years that's notably long for the area.
What this property has
Inside
- Bedrooms2
Outside
- ParkingOff road
Building
- RefurbishedYes
Everything you need to know about 9a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
9a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
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 £1,155 · Includes VAT
Planning history
9a 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
£652,000
Modelled from EPC, postcode comparables.
£1,190,000
Recorded with HM Land Registry.
Sales timeline
25 July 2010Most recent
£1,190,000
Median price across the last 5 sales in CF5 2LP: £950,000 (2025–2021).
Nearby sales in CF5 2LP
The Lawns, Flat 3, The Avenue, Llandaff, Cardiff, CF5 2LP
Sold Jul 2025
£285,000The Acorns, The Avenue, Llandaff, Cardiff, CF5 2LP
Sold Jul 2024
£1,020,000The Oaks, The Avenue, Llandaff, Cardiff, CF5 2LP
Sold Jul 2023
£950,0007 The Avenue, Llandaff, Cardiff, CF5 2LP
Sold Sept 2022
£1,200,000The Lawns, Flat 5, The Avenue, Llandaff, Cardiff, CF5 2LP
Sold Oct 2021
£272,000
Versus other The Avenue homes
On price per m², 9a stands well clear of the street.
Price per m²
£11,226
Street avg £4,791
Floor Area
106 m²
Street avg 86 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
6.6 t/year
Street avg 5.0 t/year
Everything you need to know about 9a
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heathcock — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.