Research comparable lease rates for similar space in the same submarket within the last 6 months
ContextYou cannot negotiate effectively without knowing the market rate. Sources: a tenant's broker (essential — they are typically paid by the landlord and they have access to closed-deal comp data that public listings do not show), CoStar or LoopNet for public asking rents, and direct conversations with other tenants in the building or neighborhood. Know the range of asking rent versus effective rent — the actual cost after free rent periods and allowances — before your first conversation with a landlord or their broker.

