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11 Southerndown Avenue, Mayals, Swansea, SA3 5EL
This 249 square metre property in Mayals, Swansea, Swansea carries an energy performance rating of C, which is above the national average. It is heated by a gas central heating system and is currently listed as owner-occupied. The property last sold for £740,000 in July 2025, representing a significant increase from its previous sale.
Property Type
Detached House
Bedrooms
3
Floor Area
249 m²
Council Tax
Band H
Property Features
Built 1983–1990
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Energy Performance
EPC rating and efficiency details
EPC Rating
A
B
C
C74
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
6.3 t/year
Tenure
Owner Occupied
Price & History
Transactions and market trends
Estimated value
£765,000
How our AI predicts property prices · Accurate to within 10%
Automated estimate only. For an accurate valuation, consult a surveyor or estate agent.
Transaction history
+69.1%(21y)
£740,000Latest
Jul 2025£437,500
Sept 2004Source: HM Land Registry
Nearby in SA3 5EL
35 Southerndown Avenue Mayals Swansea SA3 5EL
Jan 2025
£348,600
30 Southerndown Avenue Mayals Swansea SA3 5EL
Oct 2024
£485,000
34 Southerndown Avenue Mayals Swansea SA3 5EL
Jul 2024
£390,000
43 Southerndown Avenue Mayals Swansea SA3 5EL
Feb 2022
£365,000
50 Southerndown Avenue Mayals Swansea SA3 5EL
Jul 2021
£367,000
44 Southerndown Avenue Mayals Swansea SA3 5EL
Feb 2021
£405,000
1 / 5
House Price Index
Swansea+1.4%
106.3
Jan 26
UK HPI from HM Land Registry. Baseline: Jan 2015 = 100.
How This Property Compares on Southerndown Avenue
See how this property stacks up against others nearby
Comparing to 24 other houses on this street
Price per m²
Property value per square metre of floor space
£2,972/£2,149 avg
LowerHigher
Higher than 90% of similar properties
Years Held
Time since last sale — indicates ownership stability
1 years/10 years avg
ShorterLonger
Lowest among similar properties
EPC Rating
Government energy efficiency score (1–100)
74 (C)/60 (D) avg
Less efficientMore efficient
More efficient than 90% of similar properties
Floor Area
Total internal floor space
249 m²/161 m² avg
SmallerLarger
Larger than 96% of similar properties
CO₂ Emissions
Annual carbon output from heating, hot water & lighting
6.3 t/year/6.6 t/year avg
Higher emissionsLower emissions
Around average
Habitable Rooms
Living spaces like bedrooms & living rooms
6 rooms/7 rooms avg
FewerMore
More rooms than only 27% of similar properties
Comparisons are based on the most recent EPC data for each property in this postcode. Only similar property types (houses) are compared.
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New sales, price changes, and market updates in this area
About Mayals, Swansea
This property is located in Mayals, a suburb of Swansea, within the postal district SA 3, and is part of the larger Mumbles community council region.
Mayals is an electoral ward and suburb of Swansea, Wales. It is located about 6 kilometres west of Swansea City Centre. Mayals is considered a part of the larger district of Mumbles, along with the nine other settlements within the community council region. In 2022, Mayals had a population of 2,600, compared with the 2011 census, at which point Mayals had a population of 2,676. Mayals borders the areas of Sketty, Killay, Fairwood, Bishopston, and West Cross. The majority of Mayals is situated within the Gower Area of Outstanding Natural Beauty, which was the first AONB to be established in 1956.
Places to visit
Crime Analysis
4 months of data for Swansea
Total Crimes
6
Monthly Avg
2
Recent Trend
Stable
Most Common
Violence & Sexual
Crime by Category
Violence & Sexual4(67%)
Public Order2(33%)
Recent Incidents
Violence & Sexual
Nov 2025On or near Applegrove
Violence & Sexual
Nov 2025On or near Applegrove
Violence & Sexual
Oct 2025On or near Groves Avenue
Public Order
Oct 2025On or near Bunker's Hill
Public Order
Sept 2025On or near Castle Crescent
Violence & Sexual
Aug 2025On or near Pennard Drive
Data from Police UK • Updated monthly
Local Amenities
Schools and transport links nearby
Transport Links
30 within 3kmOwls Lodge Lane
Bus Stop73m
1 min
Kellwyn
Bus Stop302m
4 mins
Westport Avenue
Bus Stop335m
4 mins
Mayals Road
Bus Stop393m
5 mins
Owls Lodge
Bus Stop429m
5 mins
Mayals Common
Bus Stop439m
5 mins
School data from Dept. for Education • Transport data from NaPTAN
Nearby Property Businesses
Local professionals serving this area
Surveyor
Stephen Colin Jones
Swansea
RICS
Surveyor
Dubaissi Advisory Limited
Swansea
RICS
Surveyor
Astleys
Swansea
RICS
Surveyor
Sellick Consult Limited
Swansea
RICS
Hurley and Davies Ltd
Swansea
RICSResidential
Mallard Chartered Surveyors & Estate Agents
Mumbles
RICS
Surveyor
Robert Fisher Limited
Swansea
RICSResidential
Surveyor
Hunt & Thorne Chartered Surveyors
Llansamlet
RICS
Map
30 points of interest nearby
Map data from OpenStreetMap • Transport data from NaPTAN • School data from Dept. for Education • Scenic data from Beautifulplaces.ai
Frequently Asked Questions
Common questions about this property