What type of property is The Cassini Building, 35 Mercator Close, SO16 4HW?

The Cassini Building, 35 Mercator Close, SO16 4HW is a 2-bedroom detached house.

When did The Cassini Building, 35 Mercator Close, SO16 4HW last change hands?

The Cassini Building, 35 Mercator Close, SO16 4HW last sold for £203,000 in March 2025, around 1 years ago. Before that, it sold for £187,500 in May 2017, so prices have been rising over 8 years on record. Source: HM Land Registry.

What is the price history for The Cassini Building, 35 Mercator Close, SO16 4HW?

Across 2 sales between May 2017 and March 2025, The Cassini Building, 35 Mercator Close, SO16 4HW rose from £187,500 to £203,000, a change of £15,500. That works out to roughly +1% per year compounded over 8 years. Source: HM Land Registry.

What is the EPC rating for The Cassini Building, 35 Mercator Close, SO16 4HW?

The current EPC rating for The Cassini Building, 35 Mercator Close, SO16 4HW is B with a score of 91 out of 100, lodged in April 2017. Source: EPC Register.

What is the floor area of The Cassini Building, 35 Mercator Close, SO16 4HW?

The Cassini Building, 35 Mercator Close, SO16 4HW has a recorded floor area of 57 m² (614 sq ft), around 29 m² per bedroom. Source: EPC Register.

How is The Cassini Building, 35 Mercator Close, SO16 4HW heated?

The latest EPC at The Cassini Building, 35 Mercator Close, SO16 4HW records mains gas as the main heating fuel. Source: EPC Register.

Where is The Cassini Building, 35 Mercator Close, SO16 4HW located?

The Cassini Building, 35 Mercator Close, SO16 4HW sits in Southampton. It falls within the SO16 postcode district.

How safe is the area around The Cassini Building, 35 Mercator Close, SO16 4HW?

Police records around The Cassini Building, 35 Mercator Close, SO16 4HW show an average of 9 reported crimes per month over the last 8 months. Violent crime makes up roughly 59% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

Which schools serve The Cassini Building, 35 Mercator Close, SO16 4HW?

The closest primary school to The Cassini Building, 35 Mercator Close, SO16 4HW is Newlands Primary School (631m), one of 21 primaries within walking distance. The closest secondary is Oasis Academy Lord's Hill (484m), with 6 secondaries in the surrounding area.

What is the nearest station to The Cassini Building, 35 Mercator Close, SO16 4HW?

The closest bus stop to The Cassini Building, 35 Mercator Close, SO16 4HW is Maybush Corner, 99m away. In total there are 30 bus stops within the surrounding area.

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The Cassini Building, 35 Mercator Close, Southampton, SO16 4HW

EPC B

Property type

Detached

Floor top floor

Bedrooms

Bathroom

Floor area

57 m²

614 sq ft

Energy rating

Score 91

Overview

About The Cassini Building

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

The Cassini Building is a two-bedroom detached house in Southampton (SO16 4HW). It has a recorded floor area of 57 m² (around 614 sq ft). At 57 m² this is the smallest unit on EPC record across The Cassini Building (57–61 m²). The building's EPC ratings span B to A, with this unit at the bottom. On EPC score it ranks last in the building (91 versus a best of 92). The latest certificate (April 2017) returns a high B (score 91), putting the home a stone's throw from an A rating.

It changed hands recently, sold March 2025 for £203,000. Across 2017–2025, sale prices on this property compounded at 1% per year.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms2
Bathrooms1
Open-plan layoutYes

Outside

Private gardenYes
ParkingAllocated

Building

Heating systemGas

Before you decide

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The true value, the hidden risks and the full sale history, in one report.

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Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

The Cassini Building's carbon output is low for the local stock.

EPC Rating

B91

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Very Good

CO2 Emissions

0.3 t/year

Occupancy

—

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Planning

Planning history

Applications and permits filed against The Cassini Building, 35 Mercator Close, Southampton, SO16 4HW, sourced from the PlanIt planning register.

The Cassini 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.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

Current estimate

£198,000

Modelled from EPC, postcode comparables and a sale-price growth of 1.0% per year over 8 years.

See how we calculated this

Last sold (2025)

£203,000

Growth on file: 1.0% per year over 8 years.

Sales timeline

6 March 2025Most recent
£203,000
+8.3%over 7 years
15 May 2017
£187,500

Median price across the last 5 sales in SO16 4HW: £210,000 (2025–2023).

Nearby sales in SO16 4HW

On the street

Versus other Mercator Close homes

Four headline reads against 21 similar flats on this street, drawn from the latest EPC and Land Registry data.

Years Held for The Cassini Building lags the street by a wide margin.

Price per m²

£3,561

Street avg £3,051

Strongly above

Floor Area

57 m²

Street avg 55 m²

On par

CO₂ Emissions

0.3 t/year

Street avg 0.2 t/year

Below

Years Held

1 years

Street avg 7 years

Strongly below

Before you decide

Everything you need to know about The Cassini Building

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the area

Pick your report · every report is £14.99

One time fee only - money back guarantee

The data behind every report

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£262k

1 Newman Street

SO16 4FL

2 bed2 bath

£265k

1 Cheviot Crescent

SO16 4AE

2 bed1 bath

£283k

1 Chiltern Green

SO16 4AZ

2 bed1 bath

£233k

1 Clarendon Road

SO16 4GB

3 bed1 bath

£238k

1 Cotswold Road

SO16 4AX

3 bed

£260k

1 Mendip Road

SO16 4BL

3 bed1 bath

£129k

1 Hameldon Close

SO16 4QL

1 bed1 bath

£305k

1 Cecil Avenue

SO16 4GP

3 bed

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Southampton district page.

Full Southampton report

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around SO16 4HW from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

52.9dB

Low

Night-time road noise heatmap for SO16 4HW

Night-time· 23:00 – 07:00

43.4dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about The Cassini Building, 35 Mercator Close, Southampton, SO16 4HW. Each answer is also embedded as structured data for search engines.