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21 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA

Estimated value

£527,000

  • Since the 2023 sale (£2,200)+23855%
  • Against CF15 7LA's recent median (£97,000)+443%

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
Detached
Habitable rooms
9
From EPC
Floor area
177 m²
1905 sq ft
Energy rating
C
Score 71
Council tax
Band G
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

£527,000

  • Against its 2023 sale (£2,200)+23855%
  • Against CF15 7LA's recent median (£97,000)+443%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Castell Coch View is modelled from its 177 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 7LA. 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

    177 m² from the EPC lodged in April 2026

  • Sales of this home

    1 sale recorded, the latest in 2023

  • Recent sales in CF15 7LA

    5 sales, median £97,000 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: October 2025Latest 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 Castell Coch View's modelled value sits at over four times its earliest registered sale price (2023).

Sales timeline

  1. 21 December 2023Most recent

    £2,200

Median price across the last 5 sales in CF15 7LA: £97,000 (2025–2022).

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 Castell Coch View

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

21 Castell Coch View is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7LA). It has a recorded floor area of 177 m² (around 1905 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (April 2026) shows a C (score 71). This certificate was lodged in the last six months, so the rating reflects current condition.

At 177 m² the property is well over the postcode median (125 m² across 29 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £527,000 sits 23854.5% above the 2023 sale of £2,200. On a £-per-square-foot basis, the last sale (£1/sq ft) was about 99.4% below the postcode norm. Last sale on file: £2,200 in December 2023.

Before you decide

Everything you need to know about 21 Castell Coch View

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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate
Apr 2026

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
5.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 7 April 2036

9 years remaining
Planning

Planning history

Applications and permits filed against 21 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA, sourced from the PlanIt planning register.

21 Castell Coch View 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 Castell Coch View homes

Four headline reads against 29 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 21 Castell Coch View lags the street by a wide margin.

Price per m²

£12

Street avg £2,436

Strongly below

Floor Area

177 m²

Street avg 130 m²

Above

Habitable Rooms

9 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

5.0 t/year

Street avg 4.8 t/year

On par
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

Castell Coch View — bus stop.

Nearest stops

  • Castell Coch ViewBus stop44m
  • Lewis ArmsBus stop166m
  • St Michael`s CloseBus stop228m
  • Bute StreetBus stop246m

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

Late 20th centuryDetached HouseEPC CExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,085 · 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.
£493k

1 Cules Terrace, Taffs Well

CF15 7QJ

5 bed
£469k

1 Birch Hill, Tongwynlais

CF15 7LL

5 bed3 bath
£398k

1 Clos Llewellyn, Taffs Well

CF15 7AT

4 bed2 bath
£376k

1 Brynau Road, Taffs Well

CF15 7SA

£364k

1 Forest Cottage, Castle Road, Tongwynlais

CF15 7JR

3 bed1 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

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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 Castell Coch View is modelled from its 177 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 7LA. 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 Castell Coch View. 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 Castell Coch View was lodged in April 2026 at band C and is valid until April 2036. 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 Castell Coch View. 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 7LA.
Council tax band
21 Castell Coch View is in council tax band G. 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 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA. Each answer is also embedded as structured data for search engines.

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