Compare a direct lease vs sublease side-by-side over the same term.
- Compare a direct lease vs sublease side-by-side over the same term.
- Quantifies total savings, effective $/sf, monthly cash difference, and breakeven.
- Includes sublease-specific risk callouts.
Sublease Savings Calculator
TL;DR
- Compare a direct lease vs sublease">sublease side-by-side over the same term.
- Quantifies total savings, effective $/sf, monthly cash difference, and breakeven.
- Includes sublease-specific risk callouts.
Methodology
Each scenario computes total cash rent over the term, deducts the value of free-rent months and any fit-out-capex">TI allowance, and adds broker fees. Result is net effective rent in dollars and as $/sf/year. Total savings = direct net − sublease net; monthly delta = savings ÷ term months. Breakeven is the month at which cumulative direct cost would equal cumulative sublease cost. Model assumes flat rent and ignores opex pass-through differences.
How to use it
- Set market and sublease rents — Use $/sf/year for both. Use the asking sublease rate, not list market.
- Enter the term — Match the sublease term — usually whatever's left on the prime tenant's lease.
- Add concessions — Free-rent months and any TI allowance for each scenario.
- Read the breakdown — See total cost, monthly delta, and effective $/sf for each path.
Frequently asked questions
- Why is sublease usually cheaper?
- Sublessors typically discount 20–40% versus direct market rent to offload space quickly. The trade-off: shorter term, less TI, and the prime tenant's covenant risk.
- What are the risks of subleasing?
- Prime tenant default risk (you lose your lease), no direct relationship with the landlord, often 'as-is' condition, limited renewal rights, and sub-lessor consent required for any alterations.
- Should I include opex?
- If both deals are gross or both NNN, you can leave them out. If one is gross and the other is NNN, gross-up the NNN rent by typical opex (~$15–$25/sf in Class A) for a like-for-like comparison.
- What is breakeven?
- The month where cumulative direct-lease spend would have caught up to cumulative sublease spend if rents were equal. It's a sanity check on how durable the sublease discount is.
Related topics
- Sublease Strategy — How to use the sublease market — both as a tenant taking sublease space and as an over-supplied incumbent offloading.