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3 Merthyr Road, Tongwynlais, Cardiff, CF15 7LF

1 planning record

Estimated value

£418,000

  • Since the 2026 sale (£462,500)-10%
  • Against CF15 7LF's recent median (£220,000)+90%

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

Learn about this valuation
Property type
Semi-detached
Bedrooms
2
Bathrooms
2
Floor area
134 m²
1442 sq ft
Energy rating
D
Score 55
Council tax
Band F
Tenure
Owner Occupied
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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

£418,000

  • Against its 2026 sale (£462,500)-10%
  • Against CF15 7LF's recent median (£220,000)+90%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 3 Merthyr Road is modelled from its 134 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF15 7LF. 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

    134 m² from the EPC lodged in December 2015

  • Sales of this home

    2 sales recorded, the latest in 2026

  • Recent sales in CF15 7LF

    5 sales, median £220,000 (2026–2017)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: April 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull 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 3 Merthyr Road was the highest on Land Registry record across the postcode.

Sales timeline

  1. 1 April 2026Most recent

    £462,500

    +56.8%over 9 years

  2. 26 May 2016

    £295,000

Median price across the last 5 sales in CF15 7LF: £220,000 (2026–2017).

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

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Overview

About 3 Merthyr Road

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

3 Merthyr Road is a two-bedroom semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7LF). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (December 2015) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (November 2013); the latest reading is one band lower. Between certificates, lighting went from Poor to Average; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 78). The latest certificate is from December 2015, so improvements made since then won't be reflected.

At 134 m² the property is well over the postcode median (92 m² across 13 EPCs), placing it in the larger end of the local stock. Most recent transfer was April 2026 at £462,500 — fresh data. One planning record on file: an extension approved in 2024. Past consents include an extension, meaningful when judging how the property has evolved. Across 2016–2026, sale prices on this property compounded at 4.7% per year. On a £-per-square-foot basis, the last sale (£321/sq ft) was about 71.3% above the typical sold price in the postcode.

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

  • Bedrooms2
  • Bathrooms2
  • Dining roomYes
  • CloakroomYes
  • EnsuiteYes

Outside

  • Private gardenSouth-facing
  • ParkingAllocated

Building

  • Heating systemGas
Before you decide

Everything you need to know about 3 Merthyr Road

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

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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.

3 Merthyr Road'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 12 Dec 2025

Current Certificate(1 of 2)
Dec 2015

EPC Rating

A
B
C
D
D55
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
7.1 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 12 December 2025

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

Dec 2015from Nov 2013
EPC improved fromC78toD55
Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Planning

Planning history

Applications and permits filed against 3 Merthyr Road, Tongwynlais, Cardiff, CF15 7LF, sourced from the PlanIt planning register.

1 application on record at 3 Merthyr Road, Tongwynlais, Cardiff, CF15 7LF

1decisions1extensions15documents1nearby
  1. Mar 2024
    ExtensionFull
    Outcome in report

    Extension: Single storey

    New single storey extension and associated external works and new cross over to create parking space.

    Documents
    15 docs on file
    Reference
    23/02707/HSE
    Full record in report

Unlock 3 Merthyr Road, Tongwynlais, Cardiff, CF15 7LF's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 1 notable nearby
  • The 15 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Merthyr Road homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 3 Merthyr Road runs comfortably ahead of the street norm.

Price per m²

£3,451

Street avg £1,910

Strongly above

Floor Area

134 m²

Street avg 104 m²

Strongly above

Habitable Rooms

7 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

7.1 t/year

Street avg 4.4 t/year

Strongly 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

0.0 km

St Michael`s Close — bus stop.

Nearest stops

  • St Michael`s CloseBus stop22m
  • Iron BridgeBus stop121m
  • Lewis ArmsBus stop138m
  • Bute StreetBus stop189m

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 3 Building Survey

Victorian-eraSemi-Detached HouseEPC DPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,020 · 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.
£279k

1 Castle Road, Tongwynlais

CF15 7JQ

2 bed1 bath
£262k

1 Castell Coch View, Tongwynlais

CF15 7LA

2 bed1 bath
£227k

1 Anchor Street, Taffs Well

CF15 7RH

2 bed1 bath
£223k

1 Castle Street, Taffs Well

CF15 7RL

2 bed1 bath
£364k

1 Forest Cottage, Castle Road, Tongwynlais

CF15 7JR

3 bed1 bath
£299k

1 Bute Street, Tongwynlais

CF15 7LJ

3 bed1 bath
£289k

1 Church Lane, Nantgarw

CF15 7TQ

3 bed1 bath
£398k

1 Clos Llewellyn, Taffs Well

CF15 7AT

4 bed2 bath

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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 3 Merthyr Road is modelled from its 134 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF15 7LF. 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. 2 sales are recorded for 3 Merthyr Road. 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 3 Merthyr Road was lodged in December 2015 at band D and expired in December 2025, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 3 Merthyr Road. 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 7LF.
Council tax band
3 Merthyr Road 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 3 Merthyr Road, Tongwynlais, Cardiff, CF15 7LF. Each answer is also embedded as structured data for search engines.

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