Skip to content
UK Property Looker

21 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW

Estimated value

£366,000

  • Since the 1999 sale (£104,000)+252%
  • Against CF15 7HW's recent median (£322,000)+14%

Newest record on this page: December 2022. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Habitable rooms
7
From EPC
Floor area
111 m²
1195 sq ft
Energy rating
E
Score 49
Council tax
Band F
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

£366,000

  • Against its 1999 sale (£104,000)+252%
  • Against CF15 7HW's recent median (£322,000)+14%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Llwyn Mallt is modelled from its 111 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 7HW. 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

    111 m² from the EPC lodged in March 2014

  • Sales of this home

    1 sale recorded, the latest in 1999

  • Recent sales in CF15 7HW

    5 sales, median £322,000 (2022–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 2022Latest 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.

21 Llwyn Mallt's estimated value is more than triple its earliest registered sale price (1999).

Sales timeline

  1. 20 May 1999Most recent

    £104,000

Median price across the last 5 sales in CF15 7HW: £322,000 (2022–2018).

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 Llwyn Mallt

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

21 Llwyn Mallt is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HW). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (March 2014) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 82), a 3-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.

Untraded for 27 years, with the last transfer in May 1999. 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 £366,000 sits 251.9% above the 1999 sale of £104,000. On a £-per-square-foot basis, the last sale (£87/sq ft) was about 45.3% below the postcode norm. 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 21 Llwyn Mallt

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.

21 Llwyn Mallt's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 16 Mar 2024

Current Certificate
Mar 2014

EPC Rating

A
B
C
D
E
E49
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
6.3 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 16 March 2024

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 21 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW, sourced from the PlanIt planning register.

21 Llwyn Mallt 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.

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.

On years held, 21 Llwyn Mallt stands well clear of the street.

Price per m²

£937

Street avg £2,343

Strongly below

Floor Area

111 m²

Street avg 116 m²

Below

Habitable Rooms

7 rooms

Street avg 6 rooms

Above

CO₂ Emissions

6.3 t/year

Street avg 4.9 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

85/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Cwm Gwynlais — bus stop.

Nearest stops

  • Cwm GwynlaisBus stop157m
  • PantgwynlaisBus stop163m
  • Iron BridgeBus stop269m
  • St Michael`s CloseBus stop386m

Most reported crime locally

  • Violence & Sexual Offences366 reports33%
  • Anti-social Behaviour150 reports14%
  • Public Order141 reports13%
  • Shoplifting104 reports9%

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

Late 20th centuryDetached HouseEPC 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 £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.
£364k

1 Forest Cottage, Castle Road, Tongwynlais

CF15 7JR

3 bed1 bath
£376k

1 Brynau Road, Taffs Well

CF15 7SA

£398k

1 Clos Llewellyn, Taffs Well

CF15 7AT

4 bed2 bath
£330k

1 Bute Villa, Taffs Well

CF15 7QP

4 bed1 bath
£323k

1 Cross Street, Tongwynlais

CF15 7NQ

£305k

1 Cwm Gwynlais, Tongwynlais

CF15 7HU

4 bed
£300k

1 Alfred Terrace, Taffs Well

CF15 7RJ

£299k

1 Bute Street, Tongwynlais

CF15 7LJ

3 bed1 bath

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 Llwyn Mallt is modelled from its 111 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 7HW. 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 Llwyn Mallt. 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 Llwyn Mallt was lodged in March 2014 at band E and expired in March 2024, so a new one is needed to sell or let. 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 Llwyn Mallt. 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 13 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF15 7HW.
Council tax band
21 Llwyn Mallt is in council tax band F. 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 Llwyn Mallt, Tongwynlais, Cardiff, CF15 7HW. 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