Skip to content
UK Property Looker

21 Arnold Avenue, Llanrumney, Cardiff, CF3 5PP

Property type
Semi-detached
Habitable rooms
4
From EPC
Floor area
72 m²
775 sq ft
Energy rating
C
Score 71
Council tax
Band B
Tenure
Owner Occupied
Get directions (opens in a new tab)
Overview

About 21 Arnold Avenue

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

21 Arnold Avenue is a semi-detached house in Llanrumney, Cardiff, Cardiff (CF3 5PP). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (April 2023) shows a C (score 71). The rating has held steady at C across 2 certificates since April 2010. Between certificates, lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 86).

Held since March 1996 — that's 30 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £205,000 sits 583.3% above the 1996 sale of £30,000. On a £-per-square-foot basis, the last sale (£39/sq ft) was about 65.5% below the postcode norm.

Before you decide

Everything you need to know about 21 Arnold Avenue

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

Pick your report · from £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
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Apr 2023

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.4 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 18 April 2033

6 years remaining

Property Improvements

Changes detected from historical EPC data

Apr 2023from Apr 2010
Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Low Energy Lighting
12%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centurySemi-Detached HouseEPC C

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 21 Arnold Avenue, Llanrumney, Cardiff, CF3 5PP, sourced from the PlanIt planning register.

21 Arnold Avenue has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

Price

Sales history & valuation

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

21 Arnold Avenue's modelled value sits at over four times its earliest registered sale price (1996).

Current estimate

£205,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (1996)

£30,000

Recorded with HM Land Registry.

Sales timeline

  1. 29 March 1996Most recent

    £30,000

Median price across the last 5 sales in CF3 5PP: £149,500 (2025–2017).

On the street

Versus other Arnold Avenue homes

Four headline reads against 25 similar houses on this street, drawn from the latest EPC and Land Registry data.

On years held, 21 Arnold Avenue stands well clear of the street.

Price per m²

£417

Street avg £1,696

Strongly below

Floor Area

72 m²

Street avg 77 m²

Below

Habitable Rooms

4 rooms

Street avg 4 rooms

On par

CO₂ Emissions

2.4 t/year

Street avg 3.0 t/year

Above
Before you decide

Everything you need to know about 21 Arnold Avenue

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

Pick your report · from £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.
£207k

1 Arnold Avenue, Llanrumney

CF3 5PP

£209k

1 Blackmoor Place, Llanrumney

CF3 5TS

£200k

1 Bronte Close, Llanrumney

CF3 5PN

3 bed
£197k

1 Banwell Place, Llanrumney

CF3 5SH

3 bed
£192k

1 Blackbirds Way, St Mellons

CF3 5RE

£191k

1 Bridgwater Road, Llanrumney

CF3 5TF

£224k

1 Dickens Avenue, Llanrumney

CF3 5LX

£175k

1 Bunyan Close, Llanrumney

CF3 5QQ

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

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Hazlitt Close — 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 21 Arnold Avenue, Llanrumney, Cardiff, CF3 5PP. Each answer is also embedded as structured data for search engines.