What type of property is 21 Clos Derwen, CF23 5HJ?

21 Clos Derwen, CF23 5HJ is a 4-bedroom detached house.

What was the last sold price for 21 Clos Derwen, CF23 5HJ?

21 Clos Derwen, CF23 5HJ last sold for £480,000 in August 2021, around 5 years ago. Land Registry has 4 sales on record going back to £180,000 in April 2000. Source: HM Land Registry.

What is the price history for 21 Clos Derwen, CF23 5HJ?

Across 4 sales between April 2000 and August 2021, 21 Clos Derwen, CF23 5HJ rose from £180,000 to £480,000, a change of £300,000. That works out to roughly +4.7% per year compounded over 21 years. Source: HM Land Registry.

How energy efficient is 21 Clos Derwen, CF23 5HJ?

The current EPC rating for 21 Clos Derwen, CF23 5HJ is C with a score of 79 out of 100, lodged in April 2021. The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of 21 Clos Derwen, CF23 5HJ?

21 Clos Derwen, CF23 5HJ has a recorded floor area of 122 m² (1,313 sq ft), around 31 m² per bedroom. That makes it about 22% larger than the median EPC-recorded property in CF23 5HJ. Source: EPC Register.

How is 21 Clos Derwen, CF23 5HJ heated?

The latest EPC at 21 Clos Derwen, CF23 5HJ records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 21 Clos Derwen, CF23 5HJ?

21 Clos Derwen, CF23 5HJ is in council tax band G. That sits towards the upper end of the band ladder, typically reflecting larger or higher-value homes.

Where is 21 Clos Derwen, CF23 5HJ located?

21 Clos Derwen, CF23 5HJ sits in Cardiff. It falls within the CF23 postcode district.

What is crime like near 21 Clos Derwen, CF23 5HJ?

Police records around 21 Clos Derwen, CF23 5HJ show an average of 9 reported crimes per month over the last 12 months. Violent crime makes up roughly 41% of reports, the most common category. The overall trend is rising (143% versus the prior period). Source: Police UK.

What transport links are near 21 Clos Derwen, CF23 5HJ?

The closest bus stop to 21 Clos Derwen, CF23 5HJ is Brandreth Rd, 153m away. In total there are 30 bus stops within the surrounding area.

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21 Clos Derwen, Cardiff, CF23 5HJ

4 sales on record

Property type

Detached

Bedrooms

Bathrooms

Floor area

122 m²

1313 sq ft

Energy rating

Score 79

Council tax

Band G

Tenure

Owner Occupied

Overview

About 21 Clos Derwen

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

21 Clos Derwen is a four-bedroom detached house in Cardiff (CF23 5HJ). It has a recorded floor area of 122 m² (around 1313 sq ft), construction records dating it to 2007-2011 and council tax band G. The latest certificate (April 2021) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since May 2011. The recommended improvements would push it to B (score 87).

Last sale on file: £480,000 in August 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2000–2021, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £570,000 is 18.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£366/sq ft) was about 64.2% 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

Bedrooms4
Bathrooms2

Before you decide

Everything you need to know about 21 Clos Derwen

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

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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.

Current Certificate(1 of 2)

Apr 2021

EPC Rating

C79

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

2.5 t/year

Occupancy

Owner Occupied

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21st centuryDetached HouseEPC C

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Planning

Planning history

Applications and permits filed against 21 Clos Derwen, Cardiff, CF23 5HJ, sourced from the PlanIt planning register.

21 Clos Derwen 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.

21 Clos Derwen has more than doubled in price since the earliest registered sale in 2000.

Current estimate

£570,000

Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 21 years.

See how we calculated this

Last sold (2021)

£480,000

Growth on file: 4.7% per year over 21 years.

Sales timeline

22 August 2021Most recent
£480,000
+32.2%over 6 years
15 January 2015
£363,000
+15.2%over 10 years
1 July 2004
£315,000
+75.0%over 4 years
19 April 2000
£180,000

Median price across the last 5 sales in CF23 5HJ: £407,000 (2025–2021).

Nearby sales in CF23 5HJ

On the street

Versus other Clos Derwen homes

Four headline reads against 22 similar houses on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 21 Clos Derwen runs comfortably ahead of the street norm.

Price per m²

£3,934

Street avg £3,215

Strongly above

Floor Area

122 m²

Street avg 114 m²

Above

Habitable Rooms

7 rooms

Street avg 6 rooms

Above

CO₂ Emissions

2.5 t/year

Street avg 3.6 t/year

Strongly above

Before you decide

Everything you need to know about 21 Clos Derwen

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.

£574k

1 Clos Derwen

CF23 5HJ

4 bed2 bath

£579k

1 Clos Edno

CF23 5NF

4 bed2 bath

£520k

1 Crystal Avenue

CF23 5QJ

4 bed1 bath

£661k

1 Bronwydd Close

CF23 5RA

4 bed2 bath

£677k

1 Beatty Avenue

CF23 5QR

4 bed1 bath

£689k

1 Balaclava Road

CF23 5BB

4 bed3 bath

£457k

1 Clos Tecwyn

CF23 5ND

4 bed2 bath

£509k

1 Boverton Street

CF23 5ES

5 bed

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

Reported crime in the wider district is trending notably upward year-on-year.

Crime

9/mo

Rising year-on-year across the wider district.

Nearest stop

0.2 km

Brandreth Rd — 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 21 Clos Derwen, Cardiff, CF23 5HJ. Each answer is also embedded as structured data for search engines.