Setting next year's office occupancy budget in Q4 without guessing at rent starts with separating what you already know from what you're estimating: your current lease terms, published market rates for office space, and the renewal date that determines when those numbers actually change.
By David Pierce, MHG Commercial
Setting Next Year's Office Occupancy Budget in Q4 Without Guessing at Rent Starts With Three Numbers
Q4 is when most Phoenix office tenants and owners build the number that governs the year ahead, and the gap between a defensible budget and a guess comes down to three inputs: what the current lease actually obligates you to pay, what comparable space is renting for in the market right now, and the exact date your obligation changes. That's the discipline behind setting next year's office occupancy budget in Q4 without guessing at rent: three known inputs standing in for one arbitrary assumption. Skip any one of those and the budget line becomes a placeholder instead of a plan.
How Far in Advance Should You Start Next Year's Office Budget?
Most finance teams start pulling the occupancy line into the annual budget cycle 12 to 18 months before a lease event, not the quarter before. That window gives enough runway to compare renewal terms against relocation options, request updated market data from a broker, and build the number into capital planning before it locks. If your lease renews in the first half of next year, Q4 of this year is not early, it's close to the deadline.
When in Q4 Should You Lock Next Year's Occupancy Budget?
There's no single date that works for every tenant, since it depends on when your lease actually turns over relative to your fiscal year. As a general practice, the budget number should be locked before your finance team closes annual planning, and revisited once during Q4 if a renewal negotiation or a market rate check changes the assumption. Locking early and refusing to revisit is how a budget goes stale before the year even starts.
What Occupancy Costs Besides Base Rent Belong in Next Year's Budget?
Occupancy cost in commercial real estate budgeting is the full obligation of holding the space, not just the rent line on the lease. Base rent is one component. A defensible budget for next year also carries operating expenses, property taxes, insurance, common area maintenance, and, where the lease requires it, a share of property management fees passed through by the landlord.
Base Rent vs. Fully Loaded Occupancy Cost
Base rent is the contractual rate for the square footage. Fully loaded occupancy cost adds every recurring expense tied to holding that space: operating expenses, taxes, insurance, utilities not separately metered, and maintenance reserves. Two tenants paying the same base rent per square foot can carry meaningfully different total costs once operating expenses are added, particularly in older office stock where deferred maintenance shows up as a bigger annual pass-through. Budgeting off base rent alone is one of the more common ways a Q4 number comes in low.
How Do You Forecast Rent Increases Before Your Lease Renews?
Forecasting the increase starts with reading your own lease before looking anywhere else. Most office leases carry a written escalation clause, a fixed percentage or index-based bump that applies automatically at renewal or on each anniversary. That clause is a known number. The unknown is whether the market has moved further than your escalation clause assumes, which is the gap a rate check closes.
How Much Does Office Rent Typically Increase Year Over Year?
Rent growth varies by submarket, asset class, and lease structure, and Phoenix metro submarkets, Chandler, Tempe, Gilbert, and Scottsdale, don't move in lockstep. Rather than budgeting off a flat assumed percentage, the more defensible approach pulls two data points: the escalation clause already written into your current lease, and current asking and effective rates for comparable space in your submarket. Where those two diverge meaningfully, that gap is your forecasting risk for next year.
Should You Use Market Comps or Your Current Lease to Set Next Year's Rent Budget?
Both, but they answer different questions. Your current lease tells you what you're contractually obligated to pay if you renew on existing terms or ride out a holdover. Market comps tell you what a lease negotiated today would cost. If your lease is renewing next year, the market comp number should carry more weight, since that's the rate you'll actually be negotiating against. If your lease has multiple years left, your existing escalation schedule is the more reliable input, and market comps become a sanity check rather than the primary number.
How Do You Budget for Office Space Without a Confirmed Headcount or a Lease That Spans Two Budget Years?
Two of the most common reasons a Q4 office budget turns into a guess: the business hasn't finalized next year's headcount, and the lease term straddles two fiscal years so part of the obligation sits at the old rate and part sits at the new one.
For headcount uncertainty, budget against a range tied to your current utilization rather than a single point estimate: current square footage per employee, plus or minus the hiring or attrition scenario finance is already planning around. That produces a budget band instead of a single figure, which is more honest than a precise-looking number built on an unconfirmed input.
For a lease that overlaps two budget years, split the occupancy line at the actual transition date rather than pro-rating a blended average across twelve months. Model the months at the current contractual rate separately from the months at the new rate, whether that new rate comes from a renewal, a relocation, or a holdover provision. A blended average smooths over the exact month cash flow shifts, which is the detail a Q4 budget needs to get right. For owners managing a mix of assets, this same discipline, current lease terms checked against current market data, applies to every investment portfolios decision, not just a single office renewal.
Frequently Asked Questions
What is occupancy cost in commercial real estate budgeting? Occupancy cost is the full financial obligation of holding office space for a budget year, not just the base rent line on the lease. It includes operating expenses, property taxes, insurance, common area maintenance, and any property management fees the landlord passes through. Budgeting off base rent alone understates the real cost and is a common reason a Q4 number comes in short of what the year actually requires.
How much should you budget for office rent per square foot next year? There's no single citywide figure. Rent per square foot varies by submarket, building class, and lease structure across Chandler, Tempe, Gilbert, and Scottsdale. Rather than budgeting off an assumed rate, pull current asking and effective rates for comparable space in your specific submarket and compare them against your existing lease's escalation clause before locking the number.
What's the difference between base rent and fully loaded occupancy cost? Base rent is the contractual rate for the square footage alone. Fully loaded occupancy cost adds every recurring expense tied to holding that space: operating expenses, taxes, insurance, utilities, and maintenance reserves. Two tenants paying identical base rent can carry different total costs once those expenses are added, which is why a budget built on base rent alone tends to run low.
How do you avoid guessing at rent when your lease term overlaps two budget years? Split the occupancy line at the actual date the lease terms change rather than averaging one blended rate across the year. Model the months at your current contractual rate separately from the months at the new rate, whether that comes from a renewal, relocation, or holdover provision. A blended average hides the exact month cash flow shifts, which a Q4 budget needs to capture.
Get Current Market Data Before You Lock Next Year's Number
A budget built on last year's rate or a guess at market movement is the more expensive mistake to unwind later. Contact our brokerage for current asking and effective rates on office space in your submarket before you finalize next year's occupancy line.