159a, Obelisk Road, Southampton, SO19 9DN
About 159a
159a is a detached house in Southampton (SO19 9DN). It has a recorded floor area of 52 m² (around 560 sq ft). The latest certificate (March 2017) returns a high B (score 87), putting the home a stone's throw from an A rating. The rating has held steady at B across 2 certificates since January 2016. Between certificates, hot-water efficiency went from Average to Good. At 52 m² this is the 11th smallest of 37 units on EPC record in the building, where floor areas span 35–222 m². The building's EPC ratings span E to B, with this unit at the top.
Today's modelled estimate of £186,000 is 12.5% below the 2017 sale of £212,500, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£380/sq ft) was about 96.2% above the typical sold price in the postcode. At 52 m² it's 26.2% smaller than the typical home in the postcode (71 m² median across 36 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. 9 years since the last transfer (May 2017).
Energy performance
159a ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Connected to mains gas supply
Heating controls changed
Hot water efficiency improved
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Planning history
159a has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
159a valuation sits well clear of the typical sold price in this postcode.
£186,000
Modelled from EPC, postcode comparables.
£212,500
Recorded with HM Land Registry.
Sales timeline
14 May 2017Most recent
£212,500
Median price across the last 5 sales in SO19 9DN: £292,500 (2025–2023).
Nearby sales in SO19 9DN
137b, Obelisk Road, Southampton, SO19 9DN
Sold Jul 2025
£215,000165 Obelisk Road, Southampton, SO19 9DN
Sold Jun 2025
£292,500131 Obelisk Road, Southampton, SO19 9DN
Sold Aug 2024
£170,000107 Obelisk Road, Southampton, SO19 9DN
Sold Jul 2024
£425,000139 Obelisk Road, Southampton, SO19 9DN
Sold Nov 2023
£344,000
Versus other Obelisk Road homes
159a outperforms the street on co₂ emissions by a wide margin.
Price per m²
£4,087
Street avg £3,226
Floor Area
52 m²
Street avg 48 m²
CO₂ Emissions
0.5 t/year
Street avg 2.3 t/year
Years Held
9 years
Street avg 13 years
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
St Annes Road — bus stop.
Closest school
0.3 km
Woolston Infant School. 26 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
50.1dB

Night-time· 23:00 – 07:00
40.0dB







