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21 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR

Property type
Detached
Habitable rooms
6
From EPC
Floor area
117 m²
1259 sq ft
Energy rating
C
Score 78
Council tax
Band F
Tenure
Owner Occupied
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Overview

About 21 Clos Nanteos

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

21 Clos Nanteos is a detached house in Pontprennau, Cardiff, Cardiff (CF23 8XR). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (August 2026) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since November 2009. Between certificates, window efficiency dropped from Good to Average and lighting dropped from Average to Poor. The recommended improvements would push it to B (score 82). This certificate was lodged in the last six months, so the rating reflects current condition.

It hasn't traded since June 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £435,000 sits 147.2% above the 2002 sale of £175,995. On a £-per-square-foot basis, the last sale (£140/sq ft) was about 24.7% below the postcode norm.

Before you decide

Everything you need to know about 21 Clos Nanteos

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

Pick your report · from £14.99

One time fee only - money back guarantee

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(1 of 2)
Aug 2026

EPC Rating

A
B
C
C78
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.4 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 2 August 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Aug 2026from Nov 2009
Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Floor Insulation
PartialInsulated

Floor insulation added or improved

Low Energy Lighting
30%68%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

21st 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 £695 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR, sourced from the PlanIt planning register.

21 Clos Nanteos 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.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

21 Clos Nanteos valuation sits well clear of the typical sold price in this postcode.

Current estimate

£435,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2002)

£175,995

Recorded with HM Land Registry.

Sales timeline

  1. 27 June 2002Most recent

    £175,995

Median price across the last 5 sales in CF23 8XR: £290,000 (2024–2018).

On the street

Versus other Clos Nanteos homes

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

21 Clos Nanteos outperforms the street on epc rating by a wide margin.

Price per m²

£1,504

Street avg £2,399

Strongly below

Floor Area

117 m²

Street avg 104 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 6 rooms

On par

CO₂ Emissions

2.4 t/year

Street avg 3.2 t/year

Strongly above
Before you decide

Everything you need to know about 21 Clos Nanteos

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

Pick your report · from £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£430k

1 Capel Edeyrn, Pontprennau

CF23 8XJ

£417k

1 Clos Nant Y Cwm, Pontprennau

CF23 8LG

4 bed2 bath
£401k

1 Chamomile Close, Pontprennau

CF23 8RE

£401k

1 Clos Nant Mwlan, Pontprennau

CF23 8NA

4 bed2 bath
£488k

1 Allt Y Wennol, Pontprennau

CF23 8AS

4 bed2 bath
£386k

1 Ambergate Drive, Pontprennau

CF23 8AX

£381k

1 Blackberry Way, Pontprennau

CF23 8FE

4 bed2 bath
£503k

1 Acorn Grove, Pontprennau

CF23 8NG

4 bed2 bath
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

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.4 km

Premier Inn — 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 Nanteos, Pontprennau, Cardiff, CF23 8XR. Each answer is also embedded as structured data for search engines.