1a, Marne Road, Southampton, SO18 6AJ
About 1a
1a is a four-bedroom semi-detached house in Southampton (SO18 6AJ). It has a recorded floor area of 142 m² (around 1528 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (April 2015) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since October 2013. Between certificates, roof efficiency went from Average to Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 3-band jump. The latest certificate is from April 2015, so improvements made since then won't be reflected.
At 142 m² the property is well over the postcode median (94 m² across 6 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £331,000 sits 78.9% above the 2013 sale of £185,000. On a £-per-square-foot basis, the last sale (£121/sq ft) was about 48.6% above the typical sold price in the postcode. Last sold in November 2013, so it's been off the market for around 13 years.
What this property has
Inside
- Bedrooms4
- Bathrooms1
Energy performance
1a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 21 Apr 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Roof insulation improved
Planning history
1a has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
Sales history & valuation
1a valuation sits well clear of the typical sold price in this postcode.
£331,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.2% per year over 9 years.
£185,000
Growth on file: -0.2% per year over 9 years.
Sales timeline
8 November 2013Most recent
£185,000
-2.1%over 8 years18 March 2005
£189,000
Median price across the last 5 sales in SO18 6AJ: £285,000 (2025–2010).
Nearby sales in SO18 6AJ
Versus other Marne Road homes
On price per m², 1a runs well behind the street norm.
Price per m²
£1,303
Street avg £2,813
Floor Area
142 m²
Street avg 110 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
7.2 t/year
Street avg 3.2 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Balaclava Road — bus stop.
Closest school
0.5 km
Harefield Primary School. 32 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
52.6dB

Night-time· 23:00 – 07:00
41.8dB







