Castle Square, Mumbles, Swansea
House prices, sold prices and local information for SA3 4BJ.
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At a glance
5 property sales on Castle Square, Mumbles, Swansea have been recorded by HM Land Registry since 2021. In the last 12 months 1 home sold here for an average of £208,000. Most sales here are terraced homes, which have sold for an average of £250,100. 1 home here has sold more than once since 2021; 1 of them sold for more the second time. Recorded sale prices on Castle Square range from £208,000 to £290,000. Every home sold here was sold freehold.
House prices on Castle Square compared
Average sale price over the last 12 months. Castle Square has had fewer than two sales in that time, so it is left out. See all SA3 house prices.
Average sale price by year
Tenure: 100% freehold and 0% leasehold across 5 recorded sales.
Prices by property type
| Type | Sales | Average price | Last sold |
|---|---|---|---|
| Terraced | 5 | £250,100 | 21 Nov 2025 |
Sold prices on Castle Square
| Address | Date | Price | Type | Tenure |
|---|---|---|---|---|
| 12, Castle Square SA3 4BJ | 21 Nov 2025 | £208,000 | Terraced | Freehold |
| 11, Castle Square SA3 4BJ | 26 Aug 2025 | £257,500 | Terraced | Freehold |
| 11, Castle Square SA3 4BJ | 15 Mar 2024 | £220,000 | Terraced | Freehold |
| 3, Castle Square SA3 4BJ | 28 Oct 2022 | £290,000 | Terraced | Freehold |
| 4, Castle Square SA3 4BJ | 20 Aug 2021 | £275,000 | Terraced | Freehold |
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
| Address | Sales | Change |
|---|---|---|
| 11, Castle Square | £220,000 (Mar 2024) → £257,500 (Aug 2025) | +17% over 1 yr |
Buying on Castle Square?
Getting around, shops and health
Train stations
- Swansea station 4.3 mi · 1 hr 27 min walk
Nearest bus stops
- Oystermouth Primary School (o/s, Newton Road) 1 min walk
- Underhill Park (opp, Langland Road) 2 min walk
- Newton Road (opp Police Station, Newton Road) 2 min walk
- Newton Road (o/s Castleton Work, Newton Road) 3 min walk
GP surgeries
- Kings Road Surgery
2-6 Kings Road, Mumbles, Swansea · 0.1 mi - The Mumbles Medical Practice
10 West Cross Avenue, West Cross, Swansea · 0.4 mi - University Health Centre
Penmaen Residences, Singleton Park, Swansea · 2.6 mi - Sketty & Killay Medical Centre
Sketty Surgery, De La Beche Road, Swansea · 2.9 mi
Supermarkets
- Marks and Spencer Foodhall M&S Mumbles Foodhall · 0.1 mi
- Tesco Express Tesco Newton Rd Express · 0.1 mi
- The Co-operative Food Co-op Swansea - Mumbles Road · 0.3 mi
- Spar Spar - West Cross · 0.8 mi
Pharmacies
- Newbury Pharmacy · 0.1 mi
- Castle Pharmacy · 0.1 mi
- Overdrake Limited · 0.2 mi
Dentists
- Dental Surgery · 0.1 mi
- Dental Surgery · 0.1 mi
- Mumbles Dental & Cosmetic Suite · 0.1 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
| Here | Eng & Wales | |
|---|---|---|
| Owned | 78.9% | 62.5% |
| Private rented | 19.6% | 20.3% |
| Social rented | 1.5% | 17.1% |
| Households | 592 |
People
| Here | Eng & Wales | |
|---|---|---|
| Under 15 | 12.7% | 17.4% |
| Aged 15–64 | 55.2% | 64.1% |
| Aged 65+ | 32.1% | 18.6% |
| Residents | 1,248 |
Broadband
| Here | UK | |
|---|---|---|
| Superfast (30Mbit+) | 100% | 95% |
| Ultrafast (300Mbit+) | 100% | 80% |
| Gigabit-capable | 100% | 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
| Here | Eng & Wales | |
|---|---|---|
| 4G indoors, all 4 networks | 83% | 89% |
| 4G indoors, at least 1 network | 100% | 100% |
| 4G outdoors, all 4 networks | 99% | 99% |
| Calls indoors, all 4 networks | 88% | 92% |
Share of homes across Swansea 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 Castle Square
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Who lives around Castle Square
Ethnic group
| Here | Swansea | |
|---|---|---|
| White | 94.7% | 91.4% |
| Asian, Asian British or Asian Welsh | 3% | 4.4% |
| Mixed or Multiple ethnic groups | 2.2% | 1.6% |
| Black, Black British, Black Welsh, Caribbean or African | 0.1% | 1.2% |
| Other ethnic group | 0.1% | 1.4% |
Religion
| Here | Swansea | |
|---|---|---|
| Christian | 48.4% | 41.3% |
| No religion | 42.1% | 47.3% |
| Not answered | 7% | 6.7% |
| Muslim | 1.5% | 3.2% |
| Other religion | 0.4% | 0.5% |
| Buddhist | 0.3% | 0.4% |
| Hindu | 0.1% | 0.4% |
| Jewish | 0.1% | 0.1% |
Country of birth
| Here | Swansea | |
|---|---|---|
| Born in the UK | 90% | 90.6% |
| Born outside the UK | 10% | 9.4% |
Highest qualification
| Here | Swansea | |
|---|---|---|
| Level 4 qualifications and above | 52.6% | 32.8% |
| Level 3 qualifications | 13.9% | 18.2% |
| Level 2 qualifications | 11.7% | 13.8% |
| No qualifications | 11% | 18.9% |
| Level 1 and entry level qualifications | 4.4% | 7.9% |
| Apprenticeship | 4% | 5.8% |
| Other qualifications | 2.4% | 2.6% |
General health
| Here | Swansea | |
|---|---|---|
| Very good health | 55.1% | 47.7% |
| Good health | 31.3% | 30.9% |
| Fair health | 9.2% | 14% |
| Bad health | 3.2% | 5.5% |
| Very bad health | 1.2% | 1.9% |
Cars or vans per household
| Here | Swansea | |
|---|---|---|
| 1 car or van in household | 45.9% | 42.6% |
| 2 cars or vans in household | 31.6% | 25.6% |
| No cars or vans in household | 14.4% | 22.6% |
| 3 or more cars or vans in household | 8.1% | 9.2% |
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 Swansea.
Planning and heritage near Castle Square
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Noise, radon and ground hazards
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Planning applications near Castle Square
Recent planning applications around Castle Square from the council's planning register. Choose how far to look:
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Council tax here
Swansea Band D is £2,238 a year (Band A £1,492). See every band.
Estate agents near Castle Square
- John Francis 0.0 mi
- Simpsons 0.0 mi
- Dawsons 0.0 mi
- Belvoir 0.1 mi
- Astleys 0.1 mi
Agent locations © OpenStreetMap contributors. More local agents
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