Reviewed by Gary E. Wilson, President & Designated Broker · Managing Greater Seattle rentals since 1982
In a master-metered apartment building, the owner buys utilities wholesale and either recovers the cost from residents or absorbs it. Which of those happens, and how well, is one of the larger swing factors in net operating income — and it is frequently left on whatever basis was set when the building was built.
The structural problem with absorbing utility cost is that it removes any reason for residents to conserve. A resident whose water and heat are included has no financial reason to report a running toilet, close a window in winter, or take a shorter shower. Consumption in buildings with included utilities is reliably higher than in otherwise identical buildings where residents see their own usage, and the difference is the owner's money.
Wilson Management administers utility billing for apartment buildings across Bellevue, Seattle and the Eastside. For the wider service see Apartment Building Management.
The Recovery Models
Utilities included in rent. Simplest, and the owner carries all consumption risk and all price risk. A cold winter or a utility rate increase lands entirely on the owner, and rent cannot be adjusted mid-term to compensate.
Submetering. Each unit has its own meter and is billed for actual consumption. The most equitable model and the one that most reliably reduces total consumption, because residents see the direct consequence of their own usage. It requires meters, reading infrastructure, and billing administration.
Ratio utility billing (RUBS). Total building consumption is allocated among units by a formula — commonly square footage, occupancy count, or a combination — where submetering is impractical. Cheaper to implement than meters and inherently approximate, since it allocates by proxy rather than by measurement.
Fixed monthly charge. A flat utility fee alongside rent, which recovers cost predictably and, like inclusion, provides no conservation incentive.
Which model suits a building depends heavily on its construction. Buildings plumbed with vertical stacks serving multiple units cannot be submetered for water without significant work, which is why RUBS exists.
Getting the Allocation Right
RUBS is where administration most often goes wrong, because an allocation formula that seems reasonable can produce results that are not.
Allocating water purely by square footage ignores that consumption follows people rather than area — a studio with two occupants uses more water than a one-bedroom with one. Allocating purely by occupancy relies on occupancy data that is accurate at move-in and decays afterwards. Most workable formulas combine factors, and whichever is used has to be applied consistently and explained clearly.
Common areas deserve attention. Consumption for irrigation, common laundry, corridors and amenity spaces should be identified and either carried by the owner or allocated transparently, rather than silently folded into what residents are billed.
The gap between what the building is billed by the utility and what it recovers from residents is the number worth tracking over time. A widening gap is either a leak, an allocation that has drifted from reality, or vacancy being absorbed — and each calls for a different response.
Leaks Are the Hidden Cost
In a master-metered building, a running toilet costs the owner and costs the resident nothing, so it goes unreported for months.
That makes proactive detection worth real money. Tracking total consumption month over month against the same period last year, investigating unexplained increases, and checking fixtures during routine unit entries all catch losses that would otherwise persist.
Submetered buildings surface this automatically — a unit whose consumption jumps is visible immediately, which is a benefit of submetering that owners rarely count when weighing the investment.
Disclosure and Compliance
How utilities are charged has to be disclosed to residents clearly and in advance, and the requirements for doing so are specific.
Prospective residents should know before signing what utilities they will be responsible for, on what basis they are calculated, and what the typical cost is. A resident who discovers an unexpected utility charge after move-in has a legitimate grievance and frequently a complaint.
Billing statements need to be legible: what the building was charged, how the resident's share was derived, and the period covered. An opaque utility bill generates disputes disproportionate to the sums involved.
This page is general information, not legal advice.
Changing the Model
Converting a building from included utilities to a recovery model is worthwhile in many cases and has to be handled carefully.
It cannot generally be imposed mid-term; it applies at renewal or to new tenancies, which means a transition period during which the building operates both ways. And residents experience it as a rent increase regardless of how it is framed, so the offsetting rent adjustment and the communication need thought.
The case for doing it is straightforward: the building stops carrying consumption and price risk, total consumption typically falls, and the recovered cost improves net operating income directly — which flows through to value. The case against is administrative cost and the resident friction of the transition.
For most master-metered buildings of any size the analysis favours conversion, but it should be run against the building's own numbers rather than assumed.
Administration and What Residents Experience
Whatever model a building uses, the administration is what residents actually encounter, and it decides whether the arrangement generates goodwill or complaints.
Timing. Utility charges arriving on an unpredictable schedule, or bundled into rent inconsistently, generate confusion and disputes. A charge that appears on the same date each month against a stated period is understood; one that arrives sporadically is questioned every time.
Lag. There is always a gap between the utility's billing period and the resident's, and residents move out mid-cycle. How a final utility charge is handled at move-out — estimated, prorated, or held against the deposit — needs a defined answer rather than an improvised one, since it lands at exactly the moment a resident is already scrutinising their closing statement.
Errors. An allocation error affects every unit simultaneously, which turns one mistake into a building-wide complaint. Statements are worth checking before they go out rather than after.
Questions. Someone has to be able to explain a charge to a resident who asks. A billing arrangement nobody on site can explain is one that erodes trust each time it is queried.
None of this is difficult, and all of it is what separates utility recovery that runs quietly from utility recovery that becomes a standing grievance.
Frequently Asked Questions
Why does including utilities in rent cost more than it looks?
Because it removes any reason for residents to conserve. Consumption in buildings with included utilities is reliably higher than in otherwise identical buildings where residents see their own usage.
What is RUBS?
Ratio utility billing — allocating total building consumption among units by a formula such as square footage, occupancy, or a combination, where submetering is impractical. It is cheaper than meters and inherently approximate.
Which model is best?
Submetering where the building's plumbing allows it, because it is the most equitable and reduces consumption most reliably. Many buildings with vertical stacks cannot be submetered for water without significant work, which is why RUBS exists.
What is wrong with allocating water by square footage alone?
Water consumption follows people rather than area. A studio with two occupants uses more than a one-bedroom with one, and an area-only formula charges them the other way round.
How do we find leaks in a master-metered building?
By watching total consumption against the same period last year and investigating unexplained increases, plus checking fixtures during routine entries. A resident with utilities included has no reason to report a running toilet.
Can we switch to billing residents mid-lease?
Generally not. It applies at renewal or to new tenancies, so there is a transition period during which the building runs both ways — and residents experience it as a rent increase however it is framed.
What makes utility bills generate complaints?
Opacity. A statement that does not show what the building was charged, how the share was derived and what period it covers produces disputes far larger than the sums involved.
Get Started
Utility recovery is one of the larger swing factors in an apartment building's net operating income, and most master-metered buildings are leaving something on the table. Wilson Management, Inc. can run the numbers on yours.
Request a free rental analysis or contact us. You can also reach our Bellevue office at (425) 453-0089, 1380 112th Ave NE #203, Bellevue, WA 98004.