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17 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA

4 sales on record

Estimated value

£427,000

  • Since the 2025 sale (£423,000)+1%
  • Against CF23 8NA's recent median (£345,000)+24%

Newest record on this page: December 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
Bedrooms
4
Bathrooms
2
Floor area
98 m²
1055 sq ft
Energy rating
C
Score 75
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

£427,000

  • Against its 2025 sale (£423,000)+1%
  • Against CF23 8NA's recent median (£345,000)+24%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 17 Clos Nant Mwlan is modelled from its 98 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in CF23 8NA. 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

    98 m² from the EPC lodged in September 2024

  • Sales of this home

    4 sales recorded, the latest in 2025

  • Recent sales in CF23 8NA

    5 sales, median £345,000 (2025–2025)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 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.

Latest sale on 17 Clos Nant Mwlan was the highest on Land Registry record across the postcode.

Sales timeline

  1. 21 March 2025Most recent

    £423,000

    +53.8%over 5 years

  2. 11 July 2019

    £275,000

    +5.8%over 3 years

  3. 29 June 2016

    £260,000

    +225.0%over 19 years

  4. 27 March 1997

    £79,995

Median price across the last 5 sales in CF23 8NA: £345,000 (2025–2025).

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 17 Clos Nant Mwlan

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

17 Clos Nant Mwlan is a four-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8NA). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (September 2024) shows a C (score 75), near the top of the C band. When first surveyed in July 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 85). Records show the property has been extended at some point in its history.

A recent sale: £423,000 in March 2025. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs). Across 1997–2025, sale prices on this property compounded at 6.1% per year. On a £-per-square-foot basis, the last sale (£401/sq ft) was about 113.5% 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
  • Dining roomYes

Outside

  • Private gardenRear
  • DrivewayYes

Building

  • Previously extendedYes
Before you decide

Everything you need to know about 17 Clos Nant Mwlan

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(1 of 2)
Sept 2024

EPC Rating

A
B
C
C75
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.6 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 9 September 2034

7 years remaining

Property Improvements

Changes detected from historical EPC data

Sept 2024from Jul 2010
EPC improved fromD63toC75
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Windows
AverageGood

Window efficiency improved

Low Energy Lighting
15%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 17 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA, sourced from the PlanIt planning register.

17 Clos Nant Mwlan 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 Clos Nant Mwlan homes

Four headline reads against 23 similar houses on this street, drawn from the latest EPC and Land Registry data.

17 Clos Nant Mwlan outperforms the street on price per m² by a wide margin.

Price per m²

£4,316

Street avg £2,705

Strongly above

Floor Area

98 m²

Street avg 99 m²

On par

Habitable Rooms

7 rooms

Street avg 6 rooms

Above

CO₂ Emissions

2.6 t/year

Street avg 3.9 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

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Clos Cwm Du — bus stop.

Nearest stops

  • Clos Cwm DuBus stop227m
  • Pontprennau Community CentreBus stop342m
  • Sindercombe ClBus stop423m
  • Youghal CloseBus stop531m

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 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.

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£417k

1 Clos Nant Y Cwm, Pontprennau

CF23 8LG

4 bed2 bath
£401k

1 Clos Nant Mwlan, Pontprennau

CF23 8NA

4 bed2 bath
£381k

1 Blackberry Way, Pontprennau

CF23 8FE

4 bed2 bath
£488k

1 Allt Y Wennol, Pontprennau

CF23 8AS

4 bed2 bath
£503k

1 Acorn Grove, Pontprennau

CF23 8NG

4 bed2 bath
£363k

1 Clos Dol Heulog, Pontprennau

CF23 8AT

3 bed
£327k

1 Amberwood Close, Pontprennau

CF23 8BZ

3 bed
£321k

1 Clos Alyn, Pontprennau

CF23 8LB

3 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 17 Clos Nant Mwlan is modelled from its 98 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in CF23 8NA. 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. 4 sales are recorded for 17 Clos Nant Mwlan. 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 17 Clos Nant Mwlan was lodged in September 2024 at band C and is valid until September 2034. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 17 Clos Nant Mwlan. 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 8NA.
Council tax band
17 Clos Nant Mwlan 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 17 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA. Each answer is also embedded as structured data for search engines.

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