Clos Thomas, Old St Mellons, Cardiff

House prices, sold prices and local information for CF3 6YR.

Average price (last 12 months)
£297,500
1 sale
Average price (since 2020)
£266,231
55 sales
Price range
£190k – £469k
lowest to highest sale
Last sale
26 Jun 2026
CF3 6YR

At a glance

55 property sales on Clos Thomas, Old St Mellons, Cardiff have been recorded by HM Land Registry since 2020. In the last 12 months 1 home sold here for an average of £297,500. Most sales here are detached homes, which have sold for an average of £311,149. 11 homes here have sold more than once since 2020; 11 of them sold for more the second time.

House prices on Clos Thomas compared

CF3 postcode area£277,825
Cardiff£312,948
England & Wales£356,718

Average sale price over the last 12 months. Clos Thomas has had fewer than two sales in that time, so it is left out. See all CF3 house prices.

Average sale price by year

2020: £252,134 (36 sales)2020£252k2021: £277,424 (7 sales)2021£277k2022: £370,998 (2 sales)2022£371k2023: £234,950 (1 sales)2023£235k2024: £278,000 (2 sales)2024£278k2025: £298,917 (6 sales)2025£299k2026: £297,500 (1 sales)2026£298k

Prices by property type

TypeSalesAverage priceLast sold
Detached26£311,14915 Aug 2025
Semi-detached20£231,44726 Jun 2026
Terraced9£213,76828 Mar 2024

Sold prices on Clos Thomas

AddressDatePriceTypeTenure
2, Clos Thomas CF3 6YR 26 Jun 2026£297,500 Semi-detachedFreehold
3, Clos Thomas CF3 6YR 27 Feb 2026£255,000 TerracedFreehold
1, Clos Thomas CF3 6YR 15 Aug 2025£340,000 DetachedFreehold
4, Clos Thomas CF3 6YR 22 Jul 2025£247,500 Semi-detachedFreehold
14, Clos Thomas CF3 6YR 16 Apr 2025£330,000 DetachedFreehold
31, Clos Thomas CF3 6YR 28 Feb 2025£348,000 DetachedFreehold
22, Clos Thomas CF3 6YR 24 Jan 2025£243,000 Semi-detachedFreehold
51, Clos Thomas CF3 6YR 10 Jan 2025£285,000 Semi-detachedFreehold
4, Clos Thomas CF3 6YR 21 Oct 2024£250,000 Semi-detachedFreehold
2, Clos Thomas CF3 6YR 25 Jun 2024£278,000 Semi-detachedFreehold
27, Clos Thomas CF3 6YR 28 Mar 2024£278,000 TerracedFreehold
5, Clos Thomas CF3 6YR 24 Nov 2023£234,950 TerracedFreehold
53, Clos Thomas CF3 6YR 15 Jul 2022£273,000 Semi-detachedFreehold
43, Clos Thomas CF3 6YR 30 Jun 2022£468,995 Detached New buildFreehold
16, Clos Thomas CF3 6YR 25 Jun 2021£204,995 Semi-detached New buildFreehold
37, Clos Thomas CF3 6YR 30 Apr 2021£299,995 Detached New buildFreehold
39, Clos Thomas CF3 6YR 26 Mar 2021£329,995 Detached New buildFreehold
41, Clos Thomas CF3 6YR 26 Mar 2021£282,995 Detached New buildFreehold
1, Clos Thomas CF3 6YR 5 Feb 2021£263,995 DetachedFreehold
11, Clos Thomas CF3 6YR 29 Jan 2021£294,995 Detached New buildFreehold
14, Clos Thomas CF3 6YR 29 Jan 2021£264,995 Detached New buildFreehold
59, Clos Thomas CF3 6YR 22 Dec 2020£314,995 Detached New buildFreehold
28, Clos Thomas CF3 6YR 18 Dec 2020£329,995 Detached New buildFreehold
33, Clos Thomas CF3 6YR 18 Dec 2020£282,995 Detached New buildFreehold
35, Clos Thomas CF3 6YR 18 Dec 2020£289,995 Detached New buildFreehold
49, Clos Thomas CF3 6YR 18 Dec 2020£219,995 Semi-detached New buildFreehold
51, Clos Thomas CF3 6YR 18 Dec 2020£219,995 Semi-detached New buildFreehold
53, Clos Thomas CF3 6YR 18 Dec 2020£224,995 Semi-detached New buildFreehold
31, Clos Thomas CF3 6YR 17 Dec 2020£286,995 Detached New buildFreehold
55, Clos Thomas CF3 6YR 17 Dec 2020£224,995 Semi-detached New buildFreehold
57, Clos Thomas CF3 6YR 17 Dec 2020£299,995 Detached New buildFreehold
23, Clos Thomas CF3 6YR 16 Dec 2020£194,995 Terraced New buildFreehold
26, Clos Thomas CF3 6YR 16 Dec 2020£324,995 Detached New buildFreehold
4, Clos Thomas CF3 6YR 14 Dec 2020£204,995 Semi-detached New buildFreehold
13, Clos Thomas CF3 6YR 11 Dec 2020£299,995 Detached New buildFreehold
15, Clos Thomas CF3 6YR 11 Dec 2020£299,995 Detached New buildFreehold
17, Clos Thomas CF3 6YR 11 Dec 2020£284,995 DetachedFreehold
9, Clos Thomas CF3 6YR 11 Dec 2020£329,995 DetachedFreehold
19, Clos Thomas CF3 6YR 10 Dec 2020£258,995 Detached New buildFreehold
21, Clos Thomas CF3 6YR 10 Dec 2020£220,995 Terraced New buildFreehold
25, Clos Thomas CF3 6YR 10 Dec 2020£189,995 Terraced New buildFreehold
27, Clos Thomas CF3 6YR 10 Dec 2020£219,995 Terraced New buildFreehold
29, Clos Thomas CF3 6YR 10 Dec 2020£263,995 Detached New buildFreehold
18, Clos Thomas CF3 6YR 4 Dec 2020£204,995 Semi-detached New buildFreehold
20, Clos Thomas CF3 6YR 4 Dec 2020£199,995 Semi-detached New buildFreehold
22, Clos Thomas CF3 6YR 4 Dec 2020£199,995 Semi-detached New buildFreehold
24, Clos Thomas CF3 6YR 4 Dec 2020£264,995 Detached New buildFreehold
10, Clos Thomas CF3 6YR 3 Dec 2020£224,995 Semi-detachedFreehold
12, Clos Thomas CF3 6YR 30 Nov 2020£224,995 Semi-detached New buildFreehold
3, Clos Thomas CF3 6YR 27 Nov 2020£199,995 TerracedFreehold
12

Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.

Sale history: homes sold more than once

AddressSalesChange
2, Clos Thomas £224,995 (Nov 2020) → £278,000 (Jun 2024) → £297,500 (Jun 2026) +32%
over 6 yrs
3, Clos Thomas £199,995 (Nov 2020) → £255,000 (Feb 2026) +28%
over 5 yrs
1, Clos Thomas £263,995 (Feb 2021) → £340,000 (Aug 2025) +29%
over 5 yrs
4, Clos Thomas £204,995 (Dec 2020) → £250,000 (Oct 2024) → £247,500 (Jul 2025) +21%
over 5 yrs
14, Clos Thomas £264,995 (Jan 2021) → £330,000 (Apr 2025) +25%
over 4 yrs
31, Clos Thomas £286,995 (Dec 2020) → £348,000 (Feb 2025) +21%
over 4 yrs
22, Clos Thomas £199,995 (Dec 2020) → £243,000 (Jan 2025) +22%
over 4 yrs
51, Clos Thomas £219,995 (Dec 2020) → £285,000 (Jan 2025) +30%
over 4 yrs
27, Clos Thomas £219,995 (Dec 2020) → £278,000 (Mar 2024) +26%
over 3 yrs
5, Clos Thomas £189,995 (Nov 2020) → £234,950 (Nov 2023) +24%
over 3 yrs
53, Clos Thomas £224,995 (Dec 2020) → £273,000 (Jul 2022) +21%
over 2 yrs

Buying on Clos Thomas?

Land Transaction Tax calculator

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Crime and flood risk near Clos Thomas

Crime

132 crimes were reported within about a mile of Clos Thomas in August 2026.

Violence & sexual offences41
Anti-social behaviour26
Public order22
Criminal damage & arson15
Shoplifting6
Vehicle crime6

Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.

Flood risk

Clos Thomas is not in or near any Environment Agency flood warning or alert area.

Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.

Getting around and local GPs

Train stations

  • Llanishen station 2.6 mi · 53 min walk
  • Lisvane & Thornhill station 2.8 mi · 56 min walk
  • Heath High Level station 3.0 mi · 1 hr walk

Nearest bus stops

  • Rogers Avenue (Church Road) 2 min walk
  • Mortimer Avenue (Mortimer Avenue) 3 min walk
  • Heol Booths 3 (nr, Heol Booths) 5 min walk
  • Heol Booths 2 (nr, Heol Booths) 5 min walk

GP surgeries

  • Brynderwen Surgery
    Crickhowell Road, St Mellons, Cardiff · 1.2 mi
  • Cyncoed Medical Practice
    Dartington Drive, Pontprennau, Cardiff · 1.4 mi
  • St. Davids Medical Centre
    Pontprennau Medical Centr, Pentwyn Drive, Cardiff · 1.4 mi
  • Willowbrook Surgery
    5 Strathy Road, St. Mellons, Cardiff · 1.6 mi

Sources: Department for Transport (NaPTAN) and NHS England practice data. Walking times are estimates from straight-line distance.

Area profile

Homes

HereEng & Wales
Owned88.6%62.5%
Private rented6.3%20.3%
Social rented5.0%17.1%
Households537

People

HereEng & Wales
Under 1518.0%17.4%
Aged 15–6472.7%64.1%
Aged 65+9.2%18.6%
Residents1,225

Broadband

HereUK
Superfast (30Mbit+)100%95%
Ultrafast (300Mbit+)100%80%
Gigabit-capable100%80%

Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.

Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.

Nearby streets in CF3

See all streets in Cardiff All streets in CF3