12 Swanmore Avenue, Southampton, SO19 1BL
About 12 Swanmore Avenue
12 Swanmore Avenue is a two-bedroom semi-detached house in Southampton (SO19 1BL). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (November 2020) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2009. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would lift it to B (score 86), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
On a £-per-square-foot basis, the last sale (£318/sq ft) was about 78.5% above the typical sold price in the postcode. Most recent transfer: September 2023 at £253,000.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
Outside
- Private gardenRear
- ParkingOff road
Building
- Extension potentialPossible
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 9 November 2030
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
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Planning history
12 Swanmore Avenue has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
12 Swanmore Avenue valuation sits well clear of the typical sold price in this postcode.
£278,000
Modelled from EPC, postcode comparables.
£253,000
Recorded with HM Land Registry.
Sales timeline
14 September 2023Most recent
£253,000
Median price across the last 5 sales in SO19 1BL: £275,000 (2025–2024).
Nearby sales in SO19 1BL
24 Swanmore Avenue, Southampton, SO19 1BL
Sold Oct 2025
£275,00025 Swanmore Avenue, Southampton, SO19 1BL
Sold Jun 2025
£290,00032 Swanmore Avenue, Southampton, SO19 1BL
Sold Jan 2025
£355,00010 Swanmore Avenue, Southampton, SO19 1BL
Sold Jul 2024
£248,75030 Swanmore Avenue, Southampton, SO19 1BL
Sold Nov 2023
£345,000
Versus other Swanmore Avenue homes
12 Swanmore Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£3,419
Street avg £2,915
Floor Area
74 m²
Street avg 84 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.3 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
493/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Landseer Road — bus stop.
Closest school
0.4 km
Valentine Primary School & Nursery. 28 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.1dB

Night-time· 23:00 – 07:00
40.3dB







