Offices, suites and full floors for lease downtown and in the suburbs, with a broker on your side of the table.
Office Space for Lease in Ottawa
Office leasing
A tenant's market, if you know how to use it
Ottawa office vacancy reached 13.7% in Q2 2026. With more space available, tenants have more choice and more room to negotiate than they have had in years, especially on incentives, improvements and flexibility.
The best deals go to tenants who know their options. We look at your team, how you work, where your people live and what image you want, then compare buildings on total occupancy cost: net rent, additional rent, incentives, improvements and term.
Below are current MLS® listings. See our full office real estate services.
13.7%
overall Ottawa office vacancy, Q2 2026
$17.64
average asking net rent per sq ft
$18.97
average additional rent per sq ft
12.9%
Downtown Core vacancy
Live MLS® listings
Office space for lease in Ottawa
Updated automatically from MLS®. Many offices and sublets lease without being listed.
Negotiate more
What tenants can ask for today
Higher vacancy gives tenants leverage. These are the terms worth pushing for.
Free rent
Months of free net rent at the start of the term, often more on longer leases.
Improvement allowance
Landlord funding toward your fit-up, or a turnkey build-out.
Flexibility
Shorter terms, early termination or contraction rights, and renewal options.
Expansion rights
Rights of first offer on neighbouring space as you grow.
Sublet space
Furnished sublets can offer below-market rent and a quick move-in.
Additional rent caps
Limits on how much operating costs can rise each year.
Market snapshot
Ottawa office market at a glance
Overall vacancy was 13.7% in Q2 2026, with the Downtown Core at 12.9% and suburban markets at 13.1%. Average asking net rent was $17.64 per square foot, plus $18.97 in additional rent. Downtown averaged $19.64 net and the suburbs $15.53.
Leasing activity was concentrated in Class A buildings, as tenants upgrade to better space at reasonable rents.
Market figures: Cushman & Wakefield, Ottawa Office MarketBeat, Q2 2026. Asking rents; figures change each quarter.
Where tenants are looking
- Downtown Core and Centretown
- Kanata North technology park
- Merivale, Nepean and Bells Corners
- Ottawa South and the airport area
- East end: Gloucester, Orléans and the Industrial Avenue area
Explore
More Ottawa office real estate
Office buildings for sale
Office buildings and condos for owner-users and investors.
Medical and clinic space
Clinic, dental, therapy and health care space.
Leasing your office space
How we help landlords fill vacancies.
Ottawa Office Leasing FAQs
How much is office space in Ottawa?
In Q2 2026 Ottawa office space averaged $17.64 per square foot net plus $18.97 in additional rent, according to Cushman & Wakefield. Downtown and Class A space cost more; suburban and older buildings less.
Who pays your fee when I lease an office?
In most commercial leases the landlord pays the commission. We confirm how fees work for each building before you commit.
How much space do I need?
It depends on how your team works: private offices, open workstations, meeting rooms and hybrid schedules. We help you size it so you are not paying for space you will not use.
Should I consider a sublet?
Sublets can offer furnished space at lower rent with shorter terms, but they depend on the head lease. We review the terms and the consent process with you.
Mitch Gauzas, REALTOR®
