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

Property type
Semi-detached
Floor 3
Floor area
63 m²
678 sq ft
Energy rating
E
Score 47
Overview

About 21b

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

21b is a semi-detached house in Llandaff, Cardiff, Cardiff (CF5 2DY). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to 2021. At 63 m² this is the 4th 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. On EPC score it ranks last in the building (47 versus a best of 71). The latest certificate (December 2021) shows an E (score 47), well below the UK norm with real room to improve. Main heating runs on electricity: electricity, unspecified tariff.

It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).

Before you decide

Everything you need to know about 21b

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
E47
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Poor
Windows
Very Good
CO2 Emissions
3.4 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.

From £545 · Includes VAT

Planning

Planning history

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

21b 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.

21b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£217,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in CF5 2DY: £360,000 (2024–2019).

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 epc rating, 21b runs well behind the street norm.

EPC Rating

47 (E)

Street avg 54 (E)

Strongly below

Floor Area

63 m²

Street avg 53 m²

Strongly above

CO₂ Emissions

3.4 t/year

Street avg 3.2 t/year

Below
Before you decide

Everything you need to know about 21b

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

£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

£317k

1 Cardiff Road, Llandaff

CF5 2DN

3 bed1 bath
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 21b, High Street, Llandaff, Cardiff, CF5 2DY. Each answer is also embedded as structured data for search engines.