20 Sullivan Close, Penarth, CF64 3QR is a freehold detached property built between 1950-1966. The property offers approximately 969 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 £373,116 , which equates to approximately £385 per square foot. It was last sold on 22 Aug 2025 for £382,500. Since then, the value has decreased by £9,384, representing a 2.5% decrease, or approximately 3.0% per year.

The current estimated value of £373,116 is:

  • 14.7% higher than the average property price on Sullivan Close
  • 12.6% higher than the average in the CF64 3QR postcode area
  • and 1.8% lower than the average price for Penarth as a whole

At the most recent EPC inspection on 13 December 2021, the property was recorded as owner-occupied.

View sold house prices in CF64 3QR

Building approximate location

About Property

Type
Semi-Detached House
Built
1950-1966
Interior Size
969 sq ft
Tenure
Freehold
Price (estimate)
£373,116
Price Per sq ft (estimate)
£385
Bedroom Count (estimate)
3 bedrooms

EPC Summary

20 Sullivan Close, Penarth, The Vale Of Glamorgan, South Glamorgan, CF64 3QR has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 13 Dec 2021.

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.

Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 200 mm loft insulation
Good
Walls
Cavity wall, as built, no insulation (assumed)
Poor
Windows
Fully double glazed
Average
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to CF64 3QR

6 th / 23
Price Rank
13% higher than average
14 th / 18
Size Rank
9% smaller than average
2 nd / 18
Price Per Sq FT Rank
23% higher than average

Sale History

Today
£373,116
streetscan.co.uk estimate
-2 %
22 Aug 2025
£382,500
Freehold
+27.5 %
24 Mar 2022
£300,000
Freehold
+1327.7 %
19 Nov 1999
£21,013
Freehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Nearby Properties

rooms: 5
size: 958 sq ft
sale price: £379,950
sale date: 7 Feb 2025
rooms: 6
size: 952 sq ft
sale price: £170,000
sale date: 4 Nov 2011
rooms: 5
size: 969 sq ft
sale price: £315,000
sale date: 17 Feb 2026
rooms: 6
size: 1055 sq ft
sale price: £175,000
sale date: 31 Oct 2008
rooms: 5
size: 1044 sq ft
sale price: £315,000
sale date: 21 Jun 2024

Data Sources

The property at 20 Sullivan Close, Penarth, CF64 3QR appears three times in HM Land Registry records, with the latest transaction recorded on 22 Aug 2025. It also has a single Energy Performance Certificate (EPC) recorded on 13 Dec 2021. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.