Postcode insights

SA3 5SZ

Helwick Close

Mumbles

Interactive map showing SA3 5SZ and surrounding area

Detailed insights for SA3 5SZ

Overview

Postcode SA3 5SZ is located in an urban city, within the Mumbles ward of Swansea in the Wales region, and forms part of the Mumbles & Newton area. It has very low deprivation and low crime levels, with around 37.6 crimes per 1,000 residents per year, about 56% below the Wales average of 86 per 1,000. The average income per household in Mumbles & Newton is £54,538 per year. The nearest station is Swansea, about 4.3 miles away. There are no primary and no secondary schools in the area. There is 1 park nearby, the closest large park is Underhill Park.

Crime rate
3/10
Crimes per 1k residents
38
Deprivation level
1/10
Income level
10/10
Social housing
0.8%
Connectivity
N/A
Flood Risk
N/A
Noise Level
No noise

Deprivation level

1/10

Mumbles & Newton has a very low level of deprivation, ranked at position 1,826 out of 32,844 areas in the United Kingdom, placing it within the top 6% most deprived areas in Wales.

Crime level

3/10

Mumbles & Newton has a low crime rate, with approximately 37.6 reported incidents per 1,000 population each year.

Social housing

0.8%

Approximately 0.8% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 2.9% of dwellings are socially rented.

Income level

10/10

The average income per household in Mumbles & Newton is £54,538 per year.

Noise Level

No noise

No significant noise sources from railways or roads near SA3 5SZ.

Transport

The nearest station is Swansea located about 4.3 miles away. There are no other stations nearby.

Parks

Nearby parks and green spaces for SA3 5SZ
DistanceNameSizeDirections
0.2 miUnderhill ParkLargeWalking directions to Underhill Park

Area Profile

Population
280
Population density
1,567.4 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
21.62(-36%)
Criminal damage and arson
6.41(-13%)
Anti-social behaviour
4.8(-63%)
Vehicle crime
4(+39%)
Public order
2.4(-71%)
Wales average

Demographics

Ethnic groups

British
261
92.23%
Other White
17
6.01%
White and Asian (mixed)
3
1.06%
Indian
1
0.35%
Irish
1
0.35%
Total population: 283

Economics

Education (age 16+)

Level 4+ (Degree)
126
51.43%
Level 3 (A level)
41
16.73%
Level 2 (GCSEs 9-4)
30
12.24%
No qualifications
20
8.16%
Level 1 (GCSEs 3-1)
14
5.71%
Total 16+ residents: 245

Housing

Housing tenure

Owns outright
74
55.64%
Owns with a mortgage
37
27.82%
Private landlord or letting agency
19
14.29%
Other forms of private rent
2
1.5%
Other social rented
1
0.75%
Total households: 133

Property prices in Mumbles

Median price£348,250
Price per sq ft£338
Sales (last 12 months)112
Typical range (middle 50%)£259K – £490K

Based on 112 recent sales, the median property price is £348,250 (about £338 per square foot) in Mumbles area, with individual transactions ranging from £95,000 up to £1,050,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Mumbles over the last year.
TypeSalesMedian£/sq ft
Detached40£529,500£354
Semi-Detached19£300,000£319
Terraced35£280,000£325
Flats18£257,803£358

10-year price trendmedian sale price in Mumbles

Sale price

Ten year median sale price trend for each property type in Mumbles.
YearDetachedFlatsSemi-DetachedTerraced
2016£391,475£156,500£235,000£245,000
2017£405,750£255,000£275,000£218,500
2018£460,000£190,000£279,000£220,000
2019£413,950£235,500£240,000£232,500
2020£500,000£305,000£285,000£254,750
2021£525,000£280,000£312,000£290,000
2022£574,500£242,500£340,000£309,023
2023£611,500£159,500£357,500£280,000
2024£577,500£294,950£410,000£335,000
2025£529,000£249,500£348,250£270,000
2026£475,000£240,553£258,750£282,500
Ten year median sale price trend for each property type in Mumbles.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Mumbles.
YearDetachedFlatsSemi-DetachedTerraced
2016£254£259£254£235
2017£281£324£243£219
2018£290£259£260£247
2019£282£329£259£233
2020£346£367£251£249
2021£335£330£301£297
2022£351£321£333£329
2023£354£294£387£324
2024£376£382£409£353
2025£355£358£336£316
2026£354£424£318£362
Ten year median sale price per square foot trend for each property type in Mumbles.

Price distribution by property typelast 12 months

Price distribution by property type for Mumbles in the last year.

Recent sales

There were 49 recent sold properties in the last 18 months near SA3 5SZ.

Recent sold properties in the last 18 months near SA3 5SZ
DateAddressTypeTenurePriceMap
07 Aug 20257, Trinity Close, Swansea, SA3 5SXDetachedFreehold£470,000
12 Sept 202577, Castle Road, Swansea, SA3 5TASemi-DetachedFreehold£155,000
08 Aug 2025100, Castle Road, Swansea, SA3 5TAOtherFreehold£95,000
21 Nov 202512, Castle Square, Swansea, SA3 4BJTerracedFreehold£208,000
26 Aug 202511, Castle Square, Swansea, SA3 4BJTerracedFreehold£257,500

Schools

In the SA3 5SZ postcode area, located within Mumbles & Newton, there are 0 primary and 0 secondary schools in close proximity.

Nearby primary and secondary schools for SA3 5SZ
DistancePhaseNameTypeRating
0.1 miNot applicableOystermouth Primary SchoolWelsh establishment

N/A

0.3 miNot applicableGrange Primary SchoolWelsh establishment

N/A

0.3 miNot applicableSt David's Catholic Primary SchoolWelsh establishment

N/A

Local amenities

4 nearby supermarkets & convenience stores within mi of SA3 5SZ

Nearby supermarkets & convenience stores for SA3 5SZ
DistanceNameAddressDirections
0.2 miM&S Food45 Newton Road, Swansea, SA3 4BQWalking directions to M&S Food
0.2 miTesco Express31-33 Newton Road, Mumbles, Swansea, SA3 4BBWalking directions to Tesco Express
0.3 miNorton StoresWest Cross Avenue, Swansea, SA3 5TSWalking directions to Norton Stores
0.3 miCo-op FoodMumbles Road, Swansea, SA3 4DNWalking directions to Co-op Food

Local councillor and member of parliament

Elected local representatives for SA3 5SZ, including ward councillors and the local member of parliament.

Local councillors

Hannah Williams

Mumbles - Elected 18 Jun 2026

Conservative

Member of parliament

Tonia Antoniazzi

Gower - Elected 4 Jul 2024

Labour Party

Geographic Information

RegionWalesUKL
DistrictSwanseaW06000011
Parliamentary ConstituencyGowerW07000097
WardMumblesW05001056
ParishMumblesW04000583
MSOA (Middle Layer Super Output Area)Mumbles & NewtonW02000198
LSOA (Lower Layer Super Output Area)Swansea 031EW01000827
Police ForceSouth Wales
Postcode Introduced1988-03-01

Frequently asked questions about SA3 5SZ

Is SA3 5SZ (Mumbles & Newton) safe?

The area around SA3 5SZ records about 38 crimes per 1,000 residents per year, which is a low crime rate for England: it scores 3 out of 10 on the Area360 crime scale, where 10 is the highest crime level. Across Wales as a whole the rate is about 86 per 1,000. The most common offences locally are violence and sexual offences, anti-social behaviour and public order.

What is the average house price near SA3 5SZ?

The median sale price around SA3 5SZ in Mumbles & Newton is £348,250 (about £338 per square foot) based on 112 registered sales according to HM Land Registry data.

What schools are near SA3 5SZ?

There are 6 schools close to SA3 5SZ, including Oystermouth Primary School, Grange Primary School and St David's Catholic Primary School. Ratings are from the latest Ofsted inspections.

How deprived is the area around SA3 5SZ?

SA3 5SZ scores 1 out of 10 on the deprivation scale, where 10 is the most deprived. Its neighbourhood ranks 1,826 of 32,844 in England on the official Index of Multiple Deprivation (rank 1 is the most deprived).

Who represents SA3 5SZ (Mumbles & Newton) in Parliament and on the local council?

The Member of Parliament for Gower covering SA3 5SZ is Tonia Antoniazzi (Labour Party), elected at the 2024 general election. The area is represented by 1 local councillor: Hannah Williams (Conservative and Unionist Party).

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/07/2026. Read more about how our statistics are calculated.