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21a, High Street, Llandaff, Cardiff, CF5 2DY

Property type
Semi-detached
Floor 3
Floor area
56 m²
603 sq ft
Energy rating
E
Score 53
Overview

About 21a

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21a is a semi-detached house in Llandaff, Cardiff, Cardiff (CF5 2DY). It has a recorded floor area of 56 m² (around 603 sq ft) and construction records dating it to 2021. At 56 m² this is the 3rd smallest of 9 units on EPC record in the building, where floor areas span 51–209 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (December 2021) shows an E (score 53), well below the UK norm with real room to improve. Main heating runs on electricity: electricity, unspecified tariff.

Today's modelled estimate of £180,000 is 58.4% below the 2019 sale of £432,500, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£718/sq ft) was about 125.5% above the typical sold price in the postcode. At 56 m² it's 20% smaller than the typical home in the postcode (70 m² median across 8 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Most recent transfer: May 2019 at £432,500.

Before you decide

Everything you need to know about 21a

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

EPC Rating

A
B
C
D
E
E53
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Poor
Windows
Very Good
CO2 Emissions
2.8 t/year
Occupancy
—
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

21st century3rd Floor FlatEPC E

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

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Planning

Planning history

Applications and permits filed against 21a, High Street, Llandaff, Cardiff, CF5 2DY, sourced from the PlanIt planning register.

21a has no planning applications on record.

1

But the area is active

1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Current estimate

£180,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2019)

£432,500

Recorded with HM Land Registry.

Sales timeline

  1. 2 May 2019Most recent

    £432,500

Median price across the last 5 sales in CF5 2DY: £355,000 (2024–2017).

On the street

Versus other High Street homes

Three headline reads against 3 similar flats on this street, drawn from the latest EPC and Land Registry data.

On co₂ emissions, 21a stands well clear of the street.

EPC Rating

53 (E)

Street avg 52 (E)

Below

Floor Area

56 m²

Street avg 55 m²

Above

CO₂ Emissions

2.8 t/year

Street avg 3.4 t/year

Strongly above
Before you decide

Everything you need to know about 21a

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£216k

1 Ashdene Close

CF5 2SA

2 bed
£219k

1 Cwrt Pegasus, Cardiff Road, Llandaff

CF5 2AW

£138k

1 Blethin Close

CF5 2RR

1 bed1 bath
£246k

1 Clos Chwe Erw

CF5 2FD

£250k

1 Beale Close

CF5 2RU

2 bed1 bath
£253k

1 Digby Close

CF5 2PS

£256k

1 Cwrt Y Llan, Cardiff Road, Llandaff

CF5 2FF

2 bed2 bath
£267k

1 Baldwin Close

CF5 2SP

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Full Cardiff report

Crime

6/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Black Lion — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21a, High Street, Llandaff, Cardiff, CF5 2DY. Each answer is also embedded as structured data for search engines.