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21 Duffryn Close, Cardiff, CF23 6HT

3 planning records

Estimated value

£265,000

  • Since the 1998 sale (£74,000)+258%
  • Against CF23 6HT's recent median (£250,000)+6%

Newest record on this page: October 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Floor Ground
Bedrooms
3
Bathroom
1
Floor area
97 m²
1044 sq ft
Energy rating
D
Score 64
Council tax
Band E
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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

£265,000

  • Against its 1998 sale (£74,000)+258%
  • Against CF23 6HT's recent median (£250,000)+6%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Duffryn Close is modelled from its 97 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF23 6HT. 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

    97 m² from the EPC lodged in January 2013

  • Sales of this home

    1 sale recorded, the latest in 1998

  • Recent sales in CF23 6HT

    5 sales, median £250,000 (2025–2021)

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
Planning1 of 3 applicationsFull 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 Duffryn Close's estimated value is more than triple its earliest registered sale price (1998).

Sales timeline

  1. 20 November 1998Most recent

    £74,000

Median price across the last 5 sales in CF23 6HT: £250,000 (2025–2021).

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 Duffryn Close

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

21 Duffryn Close is a three-bedroom detached house in Cardiff (CF23 6HT). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1967-1975 and council tax band E. At 97 m² this is the 17th smallest of 18 units on EPC record in the building, where floor areas span 68–98 m². The building's EPC ratings span E to C across 18 units on file. The latest certificate (January 2013) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75). The latest certificate is from January 2013, so improvements made since then won't be reflected.

Untraded for 28 years, with the last transfer in November 1998. 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 £265,000 sits 258.1% above the 1998 sale of £74,000. On a £-per-square-foot basis, the last sale (£71/sq ft) was about 69.1% below the postcode norm. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. At 97 m² it's 29.5% larger than the typical home in the postcode (75 m² median across 17 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 Duffryn Close

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.

21 Duffryn Close's EPC is over a decade old — improvements since won't be reflected.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 29 Jan 2023

Current Certificate
Jan 2013

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
3.7 t/year
Occupancy
—

Certificate validity

Expired on 29 January 2023

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 21 Duffryn Close, Cardiff, CF23 6HT, sourced from the PlanIt planning register.

3 applications on record at 21 Duffryn Close, Cardiff, CF23 6HT

3decisions1nearby
  1. Apr 2011
    Tree WorksTrees
    Outcome in report

    Willow - to be crown reduced

    Reference
    CYNC/TP/11/01376
    Full record in report
  2. More recent applications — locked
  3. Tree WorksDecision
  4. TreesDecision

Unlock 21 Duffryn Close, Cardiff, CF23 6HT's full planning history

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

  • Every decision — granted, refused or withdrawn (3 on record)
  • All 3 applications on this property in full, plus 1 notable nearby
  • What the pattern means for extending or converting here
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On the street

Versus other Duffryn Close homes

Four headline reads against 17 similar flats on this street, drawn from the latest EPC and Land Registry data.

On price per m², 21 Duffryn Close runs well behind the street norm.

Price per m²

£763

Street avg £2,628

Strongly below

Floor Area

97 m²

Street avg 77 m²

Strongly above

Habitable Rooms

4 rooms

Street avg 3 rooms

Strongly above

CO₂ Emissions

3.7 t/year

Street avg 2.6 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

Rail-style transport is unusually close for this postcode.

Crime

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Rhydypenau Library — bus stop.

Nearest stops

  • Rhydypenau LibraryBus stop150m
  • Heath High LevelBus stop155m
  • Rhydypenau CrossroadsBus stop162m
  • Llandennis RoadBus stop231m

Most reported crime locally

  • Violence & Sexual Offences995 reports33%
  • Anti-social Behaviour345 reports11%
  • Public Order344 reports11%
  • Shoplifting340 reports11%

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 centuryGround Floor FlatEPC D

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 £545 · 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.
£456k

1 Cefn Coed Avenue

CF23 6HE

3 bed1 bath
£276k

1 Duffryn Close

CF23 6HT

2 bed1 bath
£533k

1 Dan Y Coed Close

CF23 6NJ

3 bed2 bath
£534k

1 Dan Yr Heol

CF23 6JU

3 bed2 bath
£303k

1 Glenwood

CF23 6UR

4 bed1 bath
£192k

1 Forest Oak Close

CF23 6QN

2 bed1 bath
£425k

1 Celyn Grove

CF23 6SH

4 bed
£507k

1 Duffryn Avenue

CF23 6LE

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 Duffryn Close is modelled from its 97 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF23 6HT. 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 Duffryn Close. 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 Duffryn Close was lodged in January 2013 at band D and expired in January 2023, 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. 3 applications are matched to 21 Duffryn Close. 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 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF23 6HT.
Council tax band
21 Duffryn Close is in council tax band E. 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 Duffryn Close, Cardiff, CF23 6HT. Each answer is also embedded as structured data for search engines.

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