Boulder Erased Its Occupancy Cap in 2025. Most Buyers Near CU Still Haven't Noticed.

How many unrelated people can legally live in a house two blocks from the CU Boulder campus?

For most of the last several decades, the answer in Boulder was a specific number: three, then briefly five. That number sat quietly behind every rental pro forma, every appraisal comp, and every parent's calculation about whether to buy a house for their student instead of paying four years of rent. It told an investor how many bedrooms actually mattered and how many were just extra square footage with no legal path to income.

That number is gone. As of September 2026, it has been gone for over a year, and the way people price houses near University Hill has not fully caught up.

The number that took decades to build and one council vote to remove

Boulder's occupancy limit based on unrelated persons traced back decades, part of a broader set of zoning definitions tied to family status that stretched to the 1950s. The city raised its cap from three unrelated adults to five in August 2023, an attempt to ease affordability by letting more people split rent on a single lease.

The bigger change came from the state, not the city. In April 2024, Governor Jared Polis signed HB24-1007, prohibiting Colorado municipalities from enforcing occupancy limits based on how many unrelated people share a home. Boulder's code enforcement stopped applying the old cap almost immediately, and on March 6, 2025, the City Council voted unanimously to strip every reference to occupancy limits and family status from the city's land use code. The ordinance took effect that April.

Council members framed the repeal partly as a fair housing correction. Mayor Aaron Brockett pointed to the city's cooperative housing rules, which had required 500-foot buffers between co-ops and given the city manager authority to shut properties down, as another piece of the same overhaul. Councilmember Nicole Speer described the vote as personally significant for households that had been defined out of the old family-based zoning language for years.

The new gatekeeper is a tape measure, not a headcount

Boulder did not deregulate occupancy. It replaced a family-status test with a physical one. The city adopted the International Property Maintenance Code standard: a bedroom needs at least 70 square feet for one occupant, plus 50 additional square feet for each person after that, along with code-compliant egress windows and enough bathroom and kitchen capacity for the number of people living there.

That is a meaningfully different filter. Under the old rule, a seven-bedroom house near The Hill was capped at five unrelated tenants no matter how the bedrooms were laid out. Under the current rule, that same house could legally house more people if the rooms clear the square footage and egress test, or fewer if the bedrooms are small and the layout doesn't support it. The constraint moved from an arbitrary number tied to a lease to the physical dimensions of the rooms themselves.

What that actually changes near University Hill

University Hill is where this shows up first, because it is where the math has always been tightest. The neighborhood is largely built out and landlocked by topography and zoning, while CU Boulder enrolls more than 38,000 students against a persistent shortfall of on-campus housing. Leasing here runs on a pre-leasing cycle, with next year's tenants often signed the prior fall, which gives owners unusually early visibility into next year's income before they even list a property for sale.

Listings in the neighborhood already reflect what bedroom-driven pricing looks like in practice. One University Hill duplex investment listed in 2026 carried a projected 2026-2027 net operating income of roughly $82,000. Another 2026 listing, appraised at $3.46 million, was marketed with a 7.09 percent capitalization rate and a gross rent multiplier of 13.09, backed by a full year of secured rental income. Home prices across the neighborhood as of 2026 span roughly $700,000 for older bungalows and condos up to $2 million or more for larger Victorians, with the highest end of multi-unit student housing assets reaching toward $5 million.

Two houses with the same bedroom count can now sit at very different points on that range, and the difference isn't the address or the listing photos. It's whether the bedrooms were built to a size that clears the current code. A five-bedroom house with generously sized rooms just picked up income potential it didn't have under the old headcount cap. A five-bedroom house with cramped, code-marginal rooms didn't gain anything at all. An appraiser or an agent working from the old "how many unrelated tenants can this legally hold" heuristic is measuring the wrong thing.

Why a family buyer should still read this

If you're not planning to rent out bedrooms, it's tempting to treat this as an investor's problem. It isn't only that.

Every buyer competing for a house near campus is competing against the same repriced investor pool. When the ceiling on legal occupancy moves from a fixed number to a bedroom-size calculation, houses with well-proportioned bedrooms become more attractive to anyone who plans to rent by the room, whether that's a family buying for a student who wants a couple of roommates to help with the mortgage or a straight investment purchase. That shifts demand toward a specific kind of floor plan, and floor plan shifts show up in offers.

It also changes what a comparable sale tells you. If you're evaluating a house near University Hill against a sale that closed before April 2025, that comp was priced under a rule that no longer exists. The income assumptions baked into that sale price may not translate to a listing today, particularly if the bedroom layouts differ.

The paperwork the repeal did not touch

None of this removes the other requirements that come with owning a rental in Boulder. Any lease of 30 days or longer still requires a valid rental license, and the property still has to meet SmartRegs energy efficiency standards and pass a rental inspection before that license is issued, whether it's a new license, a renewal, or a change tied to a sale. A buyer who assumes the occupancy repeal simplified the rental side of a purchase is missing the piece that still slows most closings down: licensing and inspection timelines that don't move any faster just because the occupancy math changed.

A few direct questions

Does this mean unlimited people can live in any house near campus? No. Bedrooms still have to meet minimum size and egress standards under the International Property Maintenance Code, and a lease can restrict occupancy further than the city does.

Does this affect houses outside the CU-adjacent submarket? The rule applies citywide, but it matters most where rental-by-the-bedroom is already common. A family home in a neighborhood with no rental history won't see the same repricing pressure.

How would I know if a specific house's bedrooms actually clear the new standard? That requires measuring the rooms and checking egress, not reading the listing's bedroom count. It's the kind of detail worth confirming before you write an offer based on projected rental income.

Whether you're weighing a University Hill purchase as an income property, buying for a student, or just trying to understand why two similar-looking houses near campus are priced differently, the bedroom dimensions matter more than they used to. Bethany Sartell works this submarket alongside the rest of Boulder County and can walk through what a specific property's layout actually supports before you commit to a number. Schedule a consultation and get a complimentary home valuation to see where a property stands under the current rule, not the one that used to apply.