Live MLS® listings · updated October 21, 2026

Office space for lease in
Newmarket.

26
Active listings

Every active office space for lease listing in Newmarket, straight from the CREA DDF® national feed — the same live inventory behind REALTOR.ca. The newest 12 are below; refine by price, size, and more in the full search.

200 (LOWER) - 227 EAGLE STREET, Newmarket (Central Newmarket)
For LeaseListed today

200 (LOWER) - 227 EAGLE STREET

Newmarket (Central Newmarket)

$4,000 / monthly2,000 sq ft
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100 (MAIN) - 227 EAGLE STREET, Newmarket (Central Newmarket)
For LeaseListed today

100 (MAIN) - 227 EAGLE STREET

Newmarket (Central Newmarket)

$4,200 / monthly2,200 sq ft
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UPPER #1 - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

UPPER #1 - 411 QUEEN STREET

Newmarket (Central Newmarket)

$550 / monthly110 sq ft
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MAIN 2C - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

MAIN 2C - 411 QUEEN STREET

Newmarket (Central Newmarket)

$550 / monthly100 sq ft
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LOWER CUBICLE - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

LOWER CUBICLE - 411 QUEEN STREET

Newmarket (Central Newmarket)

$550 / monthly47 sq ft
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MAIN 1C - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

MAIN 1C - 411 QUEEN STREET

Newmarket (Central Newmarket)

$550 / monthly100 sq ft
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MAIN 1 - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

MAIN 1 - 411 QUEEN STREET

Newmarket (Central Newmarket)

$1,100 / monthly150 sq ft
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MAIN FRONT - 411 QUEEN STREET, Newmarket (Central Newmarket)
For LeaseListed today

MAIN FRONT - 411 QUEEN STREET

Newmarket (Central Newmarket)

$1,250 / monthly180 sq ft
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39 PARKSIDE DRIVE, Newmarket (Central Newmarket)
For LeaseListed 6d ago

39 PARKSIDE DRIVE

Newmarket (Central Newmarket)

$3,200 / monthly932 sq ft
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431 DAVIS DRIVE, Newmarket (Bristol-London)
For LeaseListed 26d ago

431 DAVIS DRIVE

Newmarket (Bristol-London)

$2,700 / monthly3 ba · 850 sq ft
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6 - 355 HARRY WALKER PARKWAY, Newmarket (Newmarket Industrial Park)
For LeaseListed 36d ago

6 - 355 HARRY WALKER PARKWAY

Newmarket (Newmarket Industrial Park)

$5,000 / monthly3,568 sq ft
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A - 184 MAIN STREET S, Newmarket (Central Newmarket)
For LeaseListed 54d ago

A - 184 MAIN STREET S

Newmarket (Central Newmarket)

$3,040 / monthly1,140 sq ft
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Newmarket — quick answers

How many office spaces are for lease in Newmarket right now?
As of October 21, 2026, there are 26 active MLS® listings for office space for lease in Newmarket. This page reads the CREA DDF® national data feed — the same live inventory behind REALTOR.ca — and refreshes throughout the day.
How do I get more information on one of these office spaces?
Open any listing and use the "Ask JT" button, or call 905-856-8111. I'm JT Palmieri, a commercial real estate salesperson with Vanguard Realty Brokerage Corp. in Vaughan — I'll pull zoning, comparables, and vendor context on any property here, no pressure and no obligation.
Can I get alerted when new office spaces hit the market in Newmarket?
Yes — subscribe on this page and you'll get an email as soon as a new Newmarket listing matching this search goes active. One-click unsubscribe, no spam.