Skip to content
UK Property Looker

21 Claremont Avenue, Rumney, Cardiff, CF3 4LR

Estimated value

£352,000

  • Since the 2022 sale (£340,000)+4%
  • Against CF3 4LR's recent median (£235,000)+50%

Newest record on this page: June 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
End terrace
Bedrooms
4
Bathroom
1
Floor area
100 m²
1076 sq ft
Energy rating
D
Score 58
Council tax
Band D
Tenure
Owner Occupied
Get directions (opens in a new tab)
Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£352,000

  • Against its 2022 sale (£340,000)+4%
  • Against CF3 4LR's recent median (£235,000)+50%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Claremont Avenue is modelled from its 100 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 4LR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    100 m² from the EPC lodged in April 2022

  • Sales of this home

    1 sale recorded, the latest in 2022

  • Recent sales in CF3 4LR

    5 sales, median £235,000 (2026–2020)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: June 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Latest sale on 21 Claremont Avenue was the highest on Land Registry record across the postcode.

Sales timeline

  1. 2 August 2022Most recent

    £340,000

Median price across the last 5 sales in CF3 4LR: £235,000 (2026–2020).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 21 Claremont Avenue

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

21 Claremont Avenue is a four-bedroom end-of-terrace house in Rumney, Cardiff, Cardiff (CF3 4LR). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (April 2022) shows a D (score 58), a step below the typical UK home. The recommended improvements would push it to C (score 74).

On a £-per-square-foot basis, the last sale (£316/sq ft) was about 105.5% above the typical sold price in the postcode. Last sale on file: £340,000 in August 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms4
  • Bathrooms1
  • Dining roomYes
  • Utility roomYes
  • EnsuiteYes

Outside

  • Private gardenRear
  • ParkingOff street

Building

  • Heating systemGas
Before you decide

Everything you need to know about 21 Claremont 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
Apr 2022

EPC Rating

A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.7 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 5 April 2032

5 years remaining
Planning

Planning history

Applications and permits filed against 21 Claremont Avenue, Rumney, Cardiff, CF3 4LR, sourced from the PlanIt planning register.

21 Claremont 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.

On the street

Versus other Claremont Avenue homes

Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 21 Claremont Avenue stands well clear of the street.

Price per m²

£3,400

Street avg £2,181

Strongly above

Floor Area

100 m²

Street avg 95 m²

Above

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

4.7 t/year

Street avg 3.8 t/year

Below
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

Claremont Crescent — bus stop.

Nearest stops

  • Claremont CrescentBus stop94m
  • Llanrumney AvenueBus stop108m
  • Llanrumney AvenueBus stop180m
  • Lynton TerraceBus stop269m

Most reported crime locally

  • Violence & Sexual Offences1,550 reports36%
  • Anti-social Behaviour627 reports14%
  • Public Order468 reports11%
  • Criminal Damage & Arson424 reports10%

Go deeper on the local area

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

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Mid 20th centuryEnd-Terrace HouseEPC D

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 £595 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£377k

1 Clos Yr Ysgol, Llanrumney

CF3 4DE

4 bed3 bath
£379k

1 Castle Rise, Rumney

CF3 4BA

4 bed
£287k

1 Exford Crescent, Llanrumney

CF3 4JQ

4 bed1 bath
£286k

1 Claremont Crescent, Rumney

CF3 4LS

3 bed1 bath
£247k

1 Ball Close, Llanrumney

CF3 4JG

3 bed1 bath
£349k

1 Lynton Close, Llanrumney

CF3 4BU

£144k

1 Chulmleigh Close

CF3 4BL

2 bed1 bath
£270k

1 Castle Avenue, Rumney

CF3 4FT

Property research, connected

Get up to date data on unlimited properties per month

Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.

Start your research
Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 21 Claremont Avenue is modelled from its 100 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 4LR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 21 Claremont Avenue. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 21 Claremont Avenue was lodged in April 2022 at band D and is valid until April 2032. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 21 Claremont Avenue. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF3 4LR.
Council tax band
21 Claremont Avenue is in council tax band D. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Claremont Avenue, Rumney, Cardiff, CF3 4LR. Each answer is also embedded as structured data for search engines.

Know this home? Think our valuation is wrong?

Leave a note for other visitors about work done or anything the records miss, and say what you think it's worth. It takes about two minutes.

Keep exploring