Expansion Options in Commercial Leases: How to Protect Your Right to Grow Without Losing Your Current Space
A medical practice signed a five-year lease for 2,200 square feet. The adjacent 800 square feet became available eighteen months later. The practice needed it for a new provider and a procedure room they’d been planning. They approached the landlord.
The landlord had already leased the space to another tenant — at a rent 35% higher than what the medical practice was paying. Had the practice negotiated a right of first offer at signing, they would have had the right to lease that space at market terms before the landlord could offer it to anyone else. The clause was standard. Nobody requested it.
Expansion options protect growing businesses from being locked out of adjacent space they need for growth. For businesses whose operations are tied to a specific location — medical practices, retail stores, restaurants, fitness studios — the inability to expand in place forces a costly decision: lease additional space elsewhere, relocate entirely, or limit growth.
If you want to know what expansion rights your lease includes, run it through sasir.ai — the first scan is free.
The Three Types of Expansion Rights
Right of first offer (ROFO): the landlord must notify the tenant and offer the tenant the right to lease adjacent space before offering it to any other prospective tenant. The tenant has a defined window (typically 10 to 30 days) to accept or decline at market terms. The most tenant-favorable structure.
Right of first refusal (ROFR): the landlord can market adjacent space to other tenants, but before signing a lease with any other tenant, must first offer the space to the existing tenant on the same terms. The tenant has a defined window to match. Less favorable because the tenant must act quickly at exactly the moment another deal is in motion.
Expansion option: the tenant has the right to expand into a defined adjacent space at a defined rent (or formula) during a defined window. The most predictable but least flexible — the space must be available and within the option window.
What to Negotiate
Right of first offer on all adjacent and contiguous spaces, with a 15 to 30 day response window
Defined rent terms for the expansion space: at the same per-square-foot rate as the existing lease, or at market with the tenant’s existing lease as an anchor
Expansion with co-terminus terms: the expansion space’s lease should expire at the same time as the existing lease to avoid managing two separate lease expirations
Tenant improvement allowance for the expansion space: negotiate a TI allowance for the expansion space comparable to what was provided for the original space
Protection against the landlord carving adjacent space into smaller units that would prevent a usable expansion
The Bottom Line
Expansion rights protect your ability to grow in place rather than being forced to choose between limiting growth and relocating. For location-dependent businesses, this is often more valuable than the original lease terms. Negotiate the right of first offer before signing. Once adjacent space is leased to someone else, the right is gone.
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