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A floor upstairs is empty. The utility line did not drop. You tap the common-area electric bill splayed across your table, squinting at the 18% jump from last month, even though your suite’s usage stayed nearly identical after you swapped all overhead lighting for energy-efficient LEDs. The landlord’s scrawled note in the bill margin blames “shared load balancing” for the unbudgeted increase, with no line-item breakdown of what portion of the vacant floor’s cost you’re being asked to cover.
Calculate Your Current Pro-Rata Utility Allocation
Your lease’s common-area utility clause outlines the exact formula used to split costs across all occupied tenants, so pull that clause up first to cross-reference before you take any further action. This formula almost always ties your share of costs to the percentage of total building square footage you lease, with limited exceptions for one-time building upgrade fees or seasonal usage surges explicitly outlined in your signed agreement. Follow these steps to calculate the amount you should be charged for this billing period:
- Confirm your leased square footage as listed in your lease addendum, to avoid miscalculations from outdated building measurements that may have shifted after recent common-area renovations.
- Divide your square footage by the total rentable building area listed on the most recent public building assessment to get your standard pro-rata share percentage.
- Multiply that percentage by the total common-area utility cost for the billing period to get the amount you should be charged, excluding any one-time fees explicitly outlined in your lease.
- Subtract that expected amount from the total listed on your current bill to identify the size of any overcharge tied to the vacant floor.
Illustrative example: If your expected charge is $320 for the billing period and your bill lists $542, you are being charged $222 more than your contracted share, likely due to the vacant floor’s costs being passed to existing tenants.
Verify Vacant Floor Metering Setup
Many older commercial buildings have submeters for individual floors, while newer buildings may meter each suite separately but tie common-area lines (hall lighting, elevator hydraulics, HVAC air handlers) to a building-wide master meter. Ask your property manager for a copy of the most recent meter readings for both the vacant floor’s individual submeter and the building’s common-area master meter, to confirm if the vacant floor’s non-common utilities are being incorrectly added to the shared pool. If the building does not have submeters for individual floors, you can ask for a copy of the utility provider’s master bill for the building, to cross-reference the total amount charged against the sum of costs allocated to all tenants. You can also request a walkthrough of the vacant floor with a building engineer to confirm if lights, thermostats, or other utilities are being left on unnecessarily, driving up shared costs even if the space is unoccupied.
Flag Overcharges To Your Property Manager
You don’t need to submit a formal dispute right away if this is the first billing cycle with the increase. Frame your outreach as a request for clarification, attaching your calculation of your expected pro-rata share and asking for a line-item breakdown of the additional charges related to the vacant floor. Most property managers will offer a one-time credit for the overcharge if the cost allocation was adjusted accidentally, or outline a temporary plan to adjust shared costs while the vacant floor is marketed to new tenants. You can ask if the property owner is covering a portion of the vacant floor’s utility costs as part of their standard building operating expenses, which is a common practice to avoid burdening existing tenants with unexpected increases during vacancies. Avoid making demands in your first message, as this preserves your working relationship while still asserting that you expect to pay only the amount outlined in your lease.
Log All Correspondence Related To The Dispute
Every email, written note, or verbal conversation you have about the vacant floor utility charges should be recorded and stored in a centralized location for future reference. If you have a verbal conversation with your property manager over the phone, send a short follow-up email summarizing what was discussed, so you have a written record of any commitments they make, even if they are informal. If you agree to a temporary adjustment to your pro-rata share for the duration of the vacancy, get that agreement in writing to avoid unexpected charges in future billing cycles. You can store all scanned copies of bills, email threads, and signed agreement copies in your Lease Jacket dashboard for easy access later, no extra filing required.
Wrap Up This Reading Session Now
You have all the information you need to address the current billing discrepancy right now, so there’s no need to keep reviewing details until you have follow-up information from your property manager. Put your lease copy back in its folder, save the calculation you ran in your preferred cloud storage folder, and set a calendar reminder for three business days from now to follow up if you don’t hear a response to your outreach. You don’t need to research additional clauses or cross-reference old bills at this point, as you already have all the documentation required to support your request for clarification. If you have already sent your outreach, you can shift your focus back to your core work tasks until you receive a reply, no extra research is required right now.
Return To This Breakdown When You Open This Page Next
Next time you pull this page up, you will either have a response from your property manager to review, or a new utility bill to cross-reference against the calculation steps you learned today. If your property manager approves a credit, you can use the steps here to confirm the credit is applied correctly to your next bill, and flag any remaining discrepancies immediately. If you receive a formal denial of your request for adjustment, you can use the guidance here to build a formal case for renegotiating your common-area utility terms as part of your next lease renewal conversation. If the vacant floor is leased to a new tenant between now and your next visit, you can use the same calculation steps to confirm your utility share drops back to its original contracted amount, so you don’t continue paying extra for a space that is no longer empty. No matter the outcome, you will have a clear framework to follow to avoid overpaying for shared utilities while any floors in your building remain vacant.