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4 Leon Avenue, Taffs Well, Cardiff, CF15 7RG

Property type
Semi-detached
Habitable rooms
4
From EPC
Floor area
90 m²
969 sq ft
Energy rating
C
Score 69
Council tax
Band D
Tenure
Owner Occupied
Overview

About 4 Leon Avenue

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

4 Leon Avenue is a semi-detached house in Taffs Well, Cardiff, Cardiff (CF15 7RG). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (November 2025) shows a C (score 69), just inside the C band. When first surveyed in March 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Very Good and hot-water efficiency went from Average to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.

On energy efficiency it sits in the top 10% of properties in this postcode.

Before you decide

Everything you need to know about 4 Leon Avenue

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

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
Energy

Energy performance

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

4 Leon Avenue ranks among the most efficient homes in the postcode for energy use.

Current Certificate(1 of 3)
Nov 2025

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Nov 2025from May 2009
EPC improved fromE50toC69
Heating Controls
Prog + StatFull Control

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Low Energy Lighting
20%58%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Early 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 4 Leon Avenue, Taffs Well, Cardiff, CF15 7RG, sourced from the PlanIt planning register.

4 Leon Avenue 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.

4 Leon Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£265,000

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 CF15 7RG: £170,000 (2025–2004).

On the street

Versus other Leon Avenue homes

Four headline reads against 6 similar houses on this street, drawn from the latest EPC and Land Registry data.

4 Leon Avenue outperforms the street on epc rating by a wide margin.

EPC Rating

69 (C)

Street avg 56 (D)

Strongly above

Floor Area

90 m²

Street avg 87 m²

Above

CO₂ Emissions

3.0 t/year

Street avg 4.7 t/year

Strongly above

Habitable Rooms

4 rooms

Street avg 5 rooms

Strongly below
Before you decide

Everything you need to know about 4 Leon Avenue

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

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.
£269k

1 Castell Coch View, Tongwynlais

CF15 7LA

2 bed1 bath
£260k

1 Abbey Close, Taffs Well

CF15 7RS

£274k

1 Chapel Cottage, Tabor Street, Taffs Well

CF15 7PS

£275k

1 Beechwood Road, Taffs Well

CF15 7RZ

4 bed
£282k

1 Castle Road, Tongwynlais

CF15 7JQ

2 bed1 bath
£291k

1 Church Lane, Nantgarw

CF15 7TQ

3 bed1 bath
£235k

1 Anchor Street, Taffs Well

CF15 7RH

2 bed1 bath
£305k

1 Cwm Gwynlais, Tongwynlais

CF15 7HU

4 bed
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

Rail-style transport is unusually close for this postcode.

Crime

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Taffs Well Railway Station — 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 4 Leon Avenue, Taffs Well, Cardiff, CF15 7RG. Each answer is also embedded as structured data for search engines.