100% FREE

Heol Williams, Old St Mellons, Cardiff

MyStreetCheck free street report: Heol Williams, Old St Mellons, Cardiff · 30 October 2026 · www.mystreetcheck.co.uk/cardiff-cardiff/heol-williams/

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

Average price (last 12 months)
£247,900
5 sales
Average price (since 2018)
£236,565
73 sales
Price range
£155k – £380k
lowest to highest sale
Last sale
21 Aug 2026
CF3 6AQ

Free, no sign-up. Other sites charge up to £25.

At a glance

House prices£248k average21% below the Cardiff average Nearest station51 min walkLlanishen station Ultrafast broadband95% of homesNational average 80% Freehold or leaseholdAll freeholdAcross 86 Land Registry sales Planning applicationsChecking…Within 500 m, last 90 days

73 property sales on Heol Williams, Old St Mellons, Cardiff have been recorded by HM Land Registry since 2018. In the last 12 months 5 homes sold here for an average of £247,900. Most sales here are semi-detached homes, which have sold for an average of £241,509. Average sale prices rose from £200,288 in 2018 to £254,000 in 2026 (+27%), though averages on a single street can swing with the mix of homes sold. That is 21% below the Cardiff average of £315,449 over the same period. 25 homes here have sold more than once since 2018; 25 of them sold for more the second time. By property type, sales here have been 52% semi-detached, 25% terraced, 23% detached. Recorded sale prices on Heol Williams range from £155,000 to £379,950. Every home sold here was sold freehold. Of 702 streets in Cardiff with at least two sales in the last year, Heol Williams ranks 444th for average price.

House prices on Heol Williams compared

Heol Williams£247,900
CF3 postcode area£287,744
Cardiff£315,449
England & Wales£358,701

Average sale price over the last 12 months. See all CF3 house prices.

Average sale price by year

2018: £200,288 (24 sales)2018£200k2019: £244,260 (19 sales)2019£244k2020: £264,097 (10 sales)2020£264k2021: £217,500 (2 sales)2021£218k2022: £379,950 (1 sales)2022£380k2023: £240,333 (6 sales)2023£240k2024: £295,488 (4 sales)2024£295k2025: £244,875 (4 sales)2025£245k2026: £254,000 (3 sales)2026£254k

Tenure: 100% freehold and 0% leasehold across 86 recorded sales.

Prices by property type

TypeSalesAverage priceLast sold
Semi-detached38£241,50921 Aug 2026
Terraced18£181,9146 Aug 2026
Detached17£283,37727 Jan 2026

Sold prices on Heol Williams

AddressDatePriceTypeTenure
24, Heol Williams CF3 6AQ 21 Aug 2026£292,000 Semi-detachedFreehold
11, Heol Williams CF3 6AQ 6 Aug 2026£220,000 TerracedFreehold
23, Heol Williams CF3 6AQ 27 Mar 2026£280,000 TerracedFreehold
64, Heol Williams CF3 6AQ 20 Mar 2026£409,950 DetachedFreehold
52, Heol Williams CF3 6AQ 27 Jan 2026£250,000 DetachedFreehold
21, Heol Williams CF3 6AQ 28 Nov 2025£255,000 Semi-detachedFreehold
31, Heol Williams CF3 6AQ 28 Nov 2025£222,500 Semi-detachedFreehold
68, Heol Williams CF3 6AQ 12 Sep 2025£405,000 DetachedFreehold
13, Heol Williams CF3 6AQ 9 Jun 2025£217,000 TerracedFreehold
8, Heol Williams CF3 6AQ 28 Mar 2025£280,000 Semi-detachedFreehold
31, Heol Williams CF3 6AQ 21 Mar 2025£237,500 Semi-detachedFreehold
37, Heol Williams CF3 6AQ 3 Feb 2025£210,000 TerracedFreehold
40, Heol Williams CF3 6AQ 16 Jan 2025£285,000 Semi-detachedFreehold
26, Heol Williams CF3 6AQ 30 Sep 2024£283,000 Semi-detachedFreehold
22, Heol Williams CF3 6AQ 3 Sep 2024£269,000 Semi-detachedFreehold
4, Heol Williams CF3 6AQ 9 Aug 2024£315,000 Semi-detachedFreehold
30, Heol Williams CF3 6AQ 8 Apr 2024£311,000 Semi-detachedFreehold
16, Heol Williams CF3 6AQ 28 Mar 2024£315,000 Semi-detachedFreehold
32, Heol Williams CF3 6AQ 26 Feb 2024£314,950 Semi-detachedFreehold
6, Heol Williams CF3 6AQ 6 Oct 2023£272,000 Semi-detachedFreehold
52, Heol Williams CF3 6AQ 22 Sep 2023£247,500 DetachedFreehold
17, Heol Williams CF3 6AQ 1 Sep 2023£215,000 TerracedFreehold
15, Heol Williams CF3 6AQ 28 Jul 2023£202,500 TerracedFreehold
29, Heol Williams CF3 6AQ 21 Jul 2023£230,000 Semi-detachedFreehold
14, Heol Williams CF3 6AQ 1 Jun 2023£275,000 Semi-detachedFreehold
15, Heol Williams CF3 6AQ 19 May 2023£205,000 TerracedFreehold
68, Heol Williams CF3 6AQ 14 Nov 2022£379,950 DetachedFreehold
11, Heol Williams CF3 6AQ 25 Jun 2021£195,000 TerracedFreehold
54, Heol Williams CF3 6AQ 18 Jun 2021£240,000 Semi-detachedFreehold
9, Heol Williams CF3 6AQ 1 Feb 2021£185,000 TerracedFreehold
20, Heol Williams CF3 6AQ 30 Nov 2020£250,000 Semi-detached New buildFreehold
2, Heol Williams CF3 6AQ 24 Nov 2020£252,995 Semi-detached New buildFreehold
38, Heol Williams CF3 6AQ 9 Nov 2020£274,995 Semi-detached New buildFreehold
4, Heol Williams CF3 6AQ 25 Sep 2020£252,995 Semi-detached New buildFreehold
14, Heol Williams CF3 6AQ 7 Aug 2020£245,000 Semi-detached New buildFreehold
64, Heol Williams CF3 6AQ 30 Apr 2020£269,995 Detached New buildFreehold
56, Heol Williams CF3 6AQ 20 Mar 2020£204,995 Semi-detached New buildFreehold
58, Heol Williams CF3 6AQ 24 Feb 2020£269,995 Detached New buildFreehold
36, Heol Williams CF3 6AQ 14 Feb 2020£300,000 Detached New buildFreehold
16, Heol Williams CF3 6AQ 31 Jan 2020£254,995 Semi-detached New buildFreehold
27, Heol Williams CF3 6AQ 31 Jan 2020£207,000 Terraced New buildFreehold
60, Heol Williams CF3 6AQ 17 Jan 2020£270,000 Detached New buildFreehold
25, Heol Williams CF3 6AQ 20 Dec 2019£204,000 Terraced New buildFreehold
12, Heol Williams CF3 6AQ 29 Nov 2019£217,995 Semi-detached New buildFreehold
28, Heol Williams CF3 6AQ 29 Nov 2019£217,995 Semi-detached New buildFreehold
18, Heol Williams CF3 6AQ 22 Nov 2019£250,000 Semi-detached New buildFreehold
8, Heol Williams CF3 6AQ 15 Nov 2019£219,995 Semi-detached New buildFreehold
34, Heol Williams CF3 6AQ 8 Nov 2019£300,000 Detached New buildFreehold
6, Heol Williams CF3 6AQ 25 Oct 2019£219,995 Semi-detached New buildFreehold
10, Heol Williams CF3 6AQ 18 Oct 2019£219,995 Semi-detached New buildFreehold
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
24, Heol Williams £224,995 (Jun 2019) → £292,000 (Aug 2026) +30%
over 7 yrs
11, Heol Williams £160,000 (Nov 2018) → £195,000 (Jun 2021) → £220,000 (Aug 2026) +38%
over 8 yrs
23, Heol Williams £219,995 (Oct 2018) → £280,000 (Mar 2026) +27%
over 7 yrs
64, Heol Williams £269,995 (Apr 2020) → £409,950 (Mar 2026) +52%
over 6 yrs
52, Heol Williams £199,995 (Dec 2018) → £247,500 (Sep 2023) → £250,000 (Jan 2026) +25%
over 7 yrs
21, Heol Williams £219,995 (Dec 2018) → £255,000 (Nov 2025) +16%
over 7 yrs
31, Heol Williams £164,995 (Dec 2018) → £237,500 (Mar 2025) → £222,500 (Nov 2025) +35%
over 7 yrs
68, Heol Williams £300,000 (Dec 2018) → £379,950 (Nov 2022) → £405,000 (Sep 2025) +35%
over 7 yrs
13, Heol Williams £164,995 (Nov 2018) → £217,000 (Jun 2025) +32%
over 7 yrs
8, Heol Williams £219,995 (Nov 2019) → £280,000 (Mar 2025) +27%
over 5 yrs
37, Heol Williams £169,995 (Oct 2018) → £210,000 (Feb 2025) +24%
over 6 yrs
40, Heol Williams £219,995 (Apr 2019) → £285,000 (Jan 2025) +30%
over 6 yrs
26, Heol Williams £215,000 (Jun 2019) → £283,000 (Sep 2024) +32%
over 5 yrs
22, Heol Williams £224,995 (Jun 2019) → £269,000 (Sep 2024) +20%
over 5 yrs
4, Heol Williams £252,995 (Sep 2020) → £315,000 (Aug 2024) +25%
over 4 yrs
30, Heol Williams £254,995 (Jun 2019) → £311,000 (Apr 2024) +22%
over 5 yrs
16, Heol Williams £254,995 (Jan 2020) → £315,000 (Mar 2024) +24%
over 4 yrs
32, Heol Williams £250,000 (Jun 2019) → £314,950 (Feb 2024) +26%
over 5 yrs
6, Heol Williams £219,995 (Oct 2019) → £272,000 (Oct 2023) +24%
over 4 yrs
17, Heol Williams £169,995 (Nov 2018) → £215,000 (Sep 2023) +26%
over 5 yrs
15, Heol Williams £157,495 (Dec 2018) → £205,000 (May 2023) → £202,500 (Jul 2023) +29%
over 5 yrs
29, Heol Williams £169,995 (Oct 2018) → £230,000 (Jul 2023) +35%
over 5 yrs
14, Heol Williams £245,000 (Aug 2020) → £275,000 (Jun 2023) +12%
over 3 yrs
54, Heol Williams £224,995 (Dec 2018) → £240,000 (Jun 2021) +7%
over 2 yrs
9, Heol Williams £155,000 (Dec 2018) → £185,000 (Feb 2021) +19%
over 2 yrs

Buying on Heol Williams?

Land Transaction Tax calculator

Mortgage calculator

Getting around, shops and health

Train stations

  • Llanishen station 2.6 mi · 51 min walk
  • Lisvane & Thornhill station 2.8 mi · 55 min walk
  • Heath High Level station 2.9 mi · 57 min walk

Nearest bus stops

  • Rogers Avenue (Church Road) 1 min walk
  • Heol Booths 1 (nr, Heol Booths) 2 min walk
  • Mortimer Avenue (Mortimer Avenue) 2 min walk
  • Heol Booths 2 (nr, Heol Booths) 2 min walk

GP surgeries

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

Supermarkets

  • Spar Spar-St Edeyrns · 0.1 mi
  • Asda Superstore Asda Pentwyn Superstore · 0.2 mi
  • Waitrose MSA Waitrose at Cardiff Gate · 0.4 mi
  • Waitrose Waitrose Pontprennau Cardiff · 0.8 mi

Pharmacies

  • Asda Pharmacy · 0.3 mi
  • Allied Pharmacy Llanrumney · 0.7 mi
  • Pontprennau Pharmacy · 0.8 mi

Dentists

  • The Orthodontic Centre · 0.4 mi
  • Pontprennau Dental Care · 0.8 mi
  • Dental Surgery · 1.2 mi

Sources: Department for Transport (NaPTAN), NHS England organisation data, and GEOLYTIX Retail Points (open 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+)95%95%
Ultrafast (300Mbit+)95%80%
Gigabit-capable95%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.

Mobile signal

HereEng & Wales
4G indoors, all 4 networks98%89%
4G indoors, at least 1 network100%100%
4G outdoors, all 4 networks100%99%
Calls indoors, all 4 networks99%92%

Share of homes across Cardiff with good coverage (Jul 2025). Signal varies street by street; check your exact address on Ofcom's checker. 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.

Energy ratings and home sizes on Heol Williams

Loading energy certificates…

Who lives around Heol Williams

Ethnic group

HereCardiff
White78.6%79.2%
Asian, Asian British or Asian Welsh12.6%9.7%
Mixed or Multiple ethnic groups4.1%4%
Black, Black British, Black Welsh, Caribbean or African2.6%3.8%
Other ethnic group2%3.3%

Religion

HereCardiff
No religion45.2%42.9%
Christian39%38.4%
Not answered5.4%6.3%
Hindu5%1.5%
Muslim4.2%9.3%
Sikh0.6%0.4%
Other religion0.6%0.6%
Buddhist0.1%0.5%

Country of birth

HereCardiff
Born in the UK84.5%83.5%
Born outside the UK15.5%16.5%

Highest qualification

HereCardiff
Level 4 qualifications and above56.5%40%
Level 3 qualifications17%19.2%
Level 2 qualifications9%11.1%
No qualifications8.3%16.3%
Level 1 and entry level qualifications4%6.9%
Apprenticeship3.3%3.9%
Other qualifications1.9%2.6%

General health

HereCardiff
Very good health61.6%50.1%
Good health30.5%31.8%
Fair health6.4%12.2%
Bad health1.1%4.5%
Very bad health0.4%1.4%

Cars or vans per household

HereCardiff
2 cars or vans in household43.7%24%
1 car or van in household41.4%43%
3 or more cars or vans in household9.9%7%
No cars or vans in household5%26%

Source: Census 2021 (ONS), via Nomis. Percentages of usual residents or households, as recorded in March 2021.

Figures cover the surrounding neighbourhood (Lower Layer Super Output Area, about 1,500 residents). Full demographics of Cardiff.

Planning and heritage near Heol Williams

Checking conservation areas, listed buildings and other designations…

Noise, radon and ground hazards

Checking…

Planning applications near Heol Williams

Recent planning applications around Heol Williams from the council's planning register. Choose how far to look:

Checking recent planning applications…

Thinking of selling on Heol Williams?

Get a free valuation

Local estate agents will value your home for free, with no obligation.

What's my home worth?

Get an instant estimate from what you paid and how prices in Cardiff have moved since.

Estimate my home's value

Council tax here

Cardiff Band D is £2,013 a year (Band A £1,342). See every band.

Estate agents near Heol Williams

  • Northover & Williamson 1.9 mi
  • Peter Alan 1.9 mi
  • Darlows 2.0 mi
  • Kelvin Francis 2.0 mi
  • Hentons 2.0 mi

Agent locations © OpenStreetMap contributors. More local agents

What's it like living on Heol Williams?

No reviews yet. Live here, or used to? Be the first to say what it's like.

Write a review of Heol Williams

Reviews are checked before they appear. Please don't name individuals or include personal details.

Nearby streets in CF3

See all streets in Cardiff All streets in CF3

You might also like

Most expensive streets in CardiffWhere the priciest homes in Cardiff sellCheapest streets in CardiffThe most affordable streets in CardiffHouse prices in CardiffHow much prices have risenCouncil tax in CardiffEvery band for this yearWhat's my house worth?A free estimate from what you paidMoving costs calculatorStamp duty, fees and removals in one totalRent vs buy in CardiffIs buying cheaper than renting here?Where can I afford?Other streets at this price