What kind of home is 20 Llwyn Mallt, CF15 7HW?

20 Llwyn Mallt, CF15 7HW is a 4-bedroom detached house, which has been extended.

When did 20 Llwyn Mallt, CF15 7HW last change hands?

20 Llwyn Mallt, CF15 7HW last sold for £405,000 in December 2022, around 3 years ago. Before that, it sold for £118,000 in December 1999, so prices have been rising over 23 years on record. Source: HM Land Registry.

Has 20 Llwyn Mallt, CF15 7HW appreciated in value?

Across 2 sales between December 1999 and December 2022, 20 Llwyn Mallt, CF15 7HW rose from £118,000 to £405,000, a change of £287,000. That works out to roughly +5.5% per year compounded over 23 years. Source: HM Land Registry.

How energy efficient is 20 Llwyn Mallt, CF15 7HW?

The current EPC rating for 20 Llwyn Mallt, CF15 7HW is C with a score of 71 out of 100, lodged in June 2022. The assessor estimates the property could reach a B. Source: EPC Register.

How big is 20 Llwyn Mallt, CF15 7HW?

20 Llwyn Mallt, CF15 7HW has a recorded floor area of 105 m² (1,130 sq ft), around 26 m² per bedroom. Source: EPC Register.

What heating system does 20 Llwyn Mallt, CF15 7HW use?

The latest EPC at 20 Llwyn Mallt, CF15 7HW records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 20 Llwyn Mallt, CF15 7HW?

20 Llwyn Mallt, CF15 7HW is in council tax band E.

Which area is 20 Llwyn Mallt, CF15 7HW in?

20 Llwyn Mallt, CF15 7HW sits in Tongwynlais, Cardiff, Cardiff. It falls within the CF15 postcode district.

What is crime like near 20 Llwyn Mallt, CF15 7HW?

Police records around 20 Llwyn Mallt, CF15 7HW show an average of 2 reported crimes per month over the last 5 months. Criminal damage arson makes up roughly 40% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

What is the nearest station to 20 Llwyn Mallt, CF15 7HW?

The closest bus stop to 20 Llwyn Mallt, CF15 7HW is Cwm Gwynlais, 157m away. In total there are 30 bus stops within the surrounding area.

Calculators

Featured

UK House Price Map

30 years of UK sold prices mapped by postcode district.

Postcode-level detail
Compare areas side by side

Open the map

20 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW

Property type

Detached

Bedrooms

Bathrooms

Floor area

105 m²

1130 sq ft

Energy rating

Score 71

Council tax

Band E

Tenure

Owner Occupied

Overview

About 20 Llwyn Mallt

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

20 Llwyn Mallt is a four-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HW). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (June 2022) shows a C (score 71). The recommended improvements would push it to B (score 84). Records show the property has been extended at some point in its history.

Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Across 1999–2022, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £450,000 is 11.1% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£358/sq ft) was about 125.3% above the typical sold price in the postcode. Sold December 2022 for £405,000. 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
Bathrooms2
Dining roomYes
Utility roomYes
EnsuiteYes

Outside

Private gardenFront and rear
ParkingOff street

Building

Previously extendedYes

Before you decide

Everything you need to know about 20 Llwyn Mallt

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

The data behind every report

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

C71

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

3.3 t/year

Occupancy

Owner Occupied

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centuryDetached 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 £695 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW, sourced from the PlanIt planning register.

20 Llwyn Mallt has no planning applications on record.

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.

Latest sale on 20 Llwyn Mallt was the highest on Land Registry record across the postcode.

Current estimate

£450,000

Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 23 years.

See how we calculated this

Last sold (2022)

£405,000

Growth on file: 5.5% per year over 23 years.

Sales timeline

8 December 2022Most recent
£405,000
+243.2%over 22 years
10 December 1999
£118,000

Median price across the last 5 sales in CF15 7HW: £300,000 (2021–2015).

Nearby sales in CF15 7HW

On the street

Versus other Llwyn Mallt homes

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

20 Llwyn Mallt outperforms the street on price per m² by a wide margin.

Price per m²

£3,857

Street avg £2,051

Strongly above

Floor Area

105 m²

Street avg 117 m²

Strongly below

Habitable Rooms

6 rooms

Street avg 7 rooms

Below

CO₂ Emissions

3.3 t/year

Street avg 5.1 t/year

Strongly above

Before you decide

Everything you need to know about 20 Llwyn Mallt

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

The data behind every report

Comparables

Similar properties nearby

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

£420k

1 Clos Llewellyn, Taffs Well

CF15 7AT

4 bed2 bath

£316k

1 Bute Villa, Taffs Well

CF15 7QP

4 bed1 bath

£305k

1 Cwm Gwynlais, Tongwynlais

CF15 7HU

4 bed

£275k

1 Beechwood Road, Taffs Well

CF15 7RZ

4 bed

£432k

1 Birch Hill, Tongwynlais

CF15 7LL

5 bed3 bath

£473k

1 Cules Terrace, Taffs Well

CF15 7QJ

5 bed

£379k

1 Forest Cottage, Castle Road, Tongwynlais

CF15 7JR

3 bed1 bath

£309k

1 Bute Street, Tongwynlais

CF15 7LJ

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

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Cwm Gwynlais — 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 20 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW. Each answer is also embedded as structured data for search engines.