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21 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU

3 sales on record

Estimated value

£366,000

  • Since the 2000 sale (£102,000)+259%
  • Against CF15 7HU's recent median (£300,000)+22%

Newest record on this page: March 2024. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Bedrooms
3
Bathroom
1
Floor area
88 m²
947 sq ft
Energy rating
C
Score 72
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

£366,000

  • Against its 2000 sale (£102,000)+259%
  • Against CF15 7HU's recent median (£300,000)+22%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Cwm Gwynlais is modelled from its 88 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF15 7HU. 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

    88 m² from the EPC lodged in March 2024

  • Sales of this home

    3 sales recorded, the latest in 2000

  • Recent sales in CF15 7HU

    5 sales, median £300,000 (2022–2017)

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 Cwm Gwynlais's modelled value sits at over four times its earliest registered sale price (1999).

Sales timeline

  1. 22 May 2000Most recent

    £102,000

    +15.9%over 1 year

  2. 30 March 1999

    £88,000

    +3.5%

  3. 29 January 1999

    £85,000

Median price across the last 5 sales in CF15 7HU: £300,000 (2022–2017).

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 21 Cwm Gwynlais

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

21 Cwm Gwynlais is a three-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HU). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (March 2024) shows a C (score 72). The recommended improvements would push it to B (score 86).

It hasn't traded since May 2000, a hold of 26 years that's notably long for the area. Across 1999–2000, sale prices on this property compounded at 14.9% per year. Today's modelled estimate of £366,000 sits 258.8% above the 2000 sale of £102,000. On a £-per-square-foot basis, the last sale (£108/sq ft) was about 48.7% below the postcode norm. At 88 m² it's 18.5% smaller than the typical home in the postcode (108 m² median across 12 EPCs).

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

  • Bedrooms3
  • Bathrooms1
Before you decide

Everything you need to know about 21 Cwm Gwynlais

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.
Current Certificate
Mar 2024

EPC Rating

A
B
C
C72
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.8 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 28 March 2034

7 years remaining
Planning

Planning history

Applications and permits filed against 21 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU, sourced from the PlanIt planning register.

21 Cwm Gwynlais 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 Cwm Gwynlais homes

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

21 Cwm Gwynlais outperforms the street on co₂ emissions by a wide margin.

Price per m²

£1,159

Street avg £2,176

Below

Floor Area

88 m²

Street avg 105 m²

Strongly below

Habitable Rooms

6 rooms

Street avg 6 rooms

Below

CO₂ Emissions

2.8 t/year

Street avg 4.4 t/year

Strongly above
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

0.1 km

Pantgwynlais — bus stop.

Nearest stops

  • PantgwynlaisBus stop111m
  • Cwm GwynlaisBus stop161m
  • Iron BridgeBus stop231m
  • St Michael`s CloseBus stop349m

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 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 £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
£299k

1 Bute Street, Tongwynlais

CF15 7LJ

3 bed1 bath
£289k

1 Church Lane, Nantgarw

CF15 7TQ

3 bed1 bath
£220k

1 Church Street, Taffs Well

CF15 7PG

3 bed
£398k

1 Clos Llewellyn, Taffs Well

CF15 7AT

4 bed2 bath
£330k

1 Bute Villa, Taffs Well

CF15 7QP

4 bed1 bath
£305k

1 Cwm Gwynlais, Tongwynlais

CF15 7HU

4 bed
£279k

1 Castle Road, Tongwynlais

CF15 7JQ

2 bed1 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 21 Cwm Gwynlais is modelled from its 88 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF15 7HU. 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. 3 sales are recorded for 21 Cwm Gwynlais. 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 Cwm Gwynlais was lodged in March 2024 at band C and is valid until March 2034. 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 Cwm Gwynlais. 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 7HU.
Council tax band
21 Cwm Gwynlais 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 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU. Each answer is also embedded as structured data for search engines.

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