The Lennox Building, 51 Mercator Close, Southampton, SO16 4HW
About The Lennox Building
The Lennox Building is a one-bedroom detached house in Southampton (SO16 4HW). It has a recorded floor area of 50 m² (around 538 sq ft) and council tax band A. The latest certificate (January 2017) returns an A (score 92), the top energy band on the EPC scale. At 50 m² this is the 5th smallest of 10 units on EPC record in The Lennox Building, where floor areas span 44–57 m². The building's EPC ratings span B to A, with this unit at the top. Other recorded features include a balcony. Period features are noted in the property record.
At 50 m² it's 18% smaller than the typical home in the postcode (61 m² median across 51 EPCs). Its energy rating outperforms most of the postcode (better than 84% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Across 2017–2021, sale prices on this property compounded at -3% per year. Today's modelled estimate of £162,000 is 20% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 21.1% below the postcode norm. Last sale on file: £135,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- Communal gardenYes
- ParkingAllocated
- BalconyYes
Building
- Heating systemGas
- Period featuresYes
Energy performance
The Lennox Building's carbon output is low for the local stock.
EPC Rating
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Planning history
The Lennox Building has no planning applications on record.
But the area is active
9 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£162,000
Modelled from EPC, postcode comparables and a sale-price growth of -3.0% per year over 5 years.
£135,000
Growth on file: -3.0% per year over 5 years.
Sales timeline
9 September 2021Most recent
£135,000
-12.9%over 4 years3 February 2017
£155,000
Median price across the last 5 sales in SO16 4HW: £203,000 (2025–2023).
Nearby sales in SO16 4HW
23 Mercator Close, Southampton, SO16 4HW
Sold Oct 2025
£360,000The Cassini Building, 35 Mercator Close, Southampton, SO16 4HW
Sold Mar 2025
£203,000The Cassini Building, 31 Mercator Close, Southampton, SO16 4HW
Sold Oct 2024
£178,000The Lennox Building, 46 Mercator Close, Southampton, SO16 4HW
Sold Nov 2023
£148,000The Cassini Building, 28 Mercator Close, Southampton, SO16 4HW
Sold Aug 2023
£210,000
Versus other Mercator Close homes
On price per m², The Lennox Building runs well behind the street norm.
Price per m²
£2,700
Street avg £3,092
Floor Area
50 m²
Street avg 56 m²
CO₂ Emissions
0.1 t/year
Street avg 0.2 t/year
Years Held
5 years
Street avg 7 years
Similar properties nearby
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Maybush Corner — bus stop.
Closest school
0.5 km
Oasis Academy Lord's Hill. 27 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
52.9dB

Night-time· 23:00 – 07:00
43.4dB







