23 Duncan Close, St Mellons, Cardiff, CF3 1NP is a freehold semi-detached property built between 1996-2002. The property offers approximately 872 square feet of living space. In this location, properties of similar size usually have three bedrooms.

The estimated current market value of the property is £245,478 , which equates to approximately £282 per square foot. It was last sold on 26 Aug 2025 for £245,000. Since then, the value has increased by £478, representing a 0.2% increase, or approximately 0.6% per year.

The current estimated value of £245,478 is:

  • 2.1% higher than the average property price on Duncan Close
  • 4.4% higher than the average in the CF3 1NP postcode area
  • and 27.2% lower than the average price for Cardiff as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded as owner-occupied both times. This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 20 May 2024, the property was recorded as owner-occupied.

View sold house prices in CF3 1NP

Building approximate location

About Property

Type
Semi-Detached House
Built
1996-2002
Interior Size
872 sq ft
Tenure
Freehold
Price (estimate)
£245,478
Price Per sq ft (estimate)
£282
Bedroom Count (estimate)
3 bedrooms

EPC Summary

23 Duncan Close, St Mellons, Cardiff, CF3 1NP has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 20 May 2024.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 8 May 2010. The rating of C is unchanged, though the energy efficiency score decreased by 5.3%.

Since the previous assessment, several changes were observed:

  • The roof construction or insulation changed from pitched, 50 mm loft insulation to pitched, 75 mm loft insulation, improving energy efficiency from poor to average.
  • The lighting was updated from low energy lighting in 81% of fixed outlets to low energy lighting in 45% of fixed outlets, with efficiency changing from very good to good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 75 mm loft insulation
Average
Walls
Timber frame, as built, insulated (assumed)
Good
Windows
Fully double glazed
Good
Lighting
Low energy lighting in 45% of fixed outlets
Good

Compared to CF3 1NP

6 th / 24
Price Rank
4% higher than average
1 st / 17
Size Rank
18% bigger than average
15 th / 17
Price Per Sq FT Rank
11% lower than average

Compared to other properties in CF3 1NP , this house's estimated value ranks 6th out of 24. Based on price per square foot, it ranks 15th out of 17 properties. This indicates a lower price per square foot than most, suggesting good value for the space offered. In terms of size, this home ranks 1st out of 17 properties in its postcode area.

Sale History

Today
£245,478
streetscan.co.uk estimate
+0 %
26 Aug 2025
£245,000
Leasehold
+65.5 %
10 Jun 2016
£148,000
Leasehold
+164.3 %
19 Jun 1998
£55,995
Leasehold
+1.8 %
12 Dec 1997
£55,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 5
size: 743 sq ft
sale price: £250,000
sale date: 29 Aug 2025
rooms: 5
size: 818 sq ft
sale price: £212,500
sale date: 23 Sep 2024
rooms: 5
size: 743 sq ft
sale price: £183,000
sale date: 1 Feb 2019

Data Sources

The property at 23 Duncan Close, St Mellons, Cardiff, CF3 1NP appears four times in the Land Registry records, with the latest transaction recorded on 26 Aug 2025. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 20 May 2024. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.