Hi, Joe White here from Grow Property Management. If you own a rental in Philly, one of the trickiest questions I get is: how many people can I legally allow to live in my rental unit? Get it wrong and you’re either facing a fair housing complaint or a code violation from L&I. Get it right, and you protect your investment, your tenants, and your peace of mind.
I recently got an anonymous question from a landlord who was being accused of violating fair housing laws — specifically familial status — because they tried to cap the number of tenants in a unit. This is a really common trap, so let me walk you through exactly how Philadelphia handles occupancy limits, why familial status matters, and how to stay compliant.
Fair Housing First: You Can’t Cap Tenants by Who They Are
Federal fair housing law protects seven classes: race, color, national origin, religion, sex, disability, and familial status. Philadelphia layers on additional protections too. Familial status is the one that trips up most landlords.
You legally cannot say things like:
- “No kids allowed”
- “Adults only”
- “Only single professionals”
- “Only one child per bedroom”
Even hinting that you’d prefer a single male tenant over a family of four is a violation. HUD complaints are expensive, and Philadelphia’s Fair Housing Commission takes them seriously. What you can do is enforce a neutral, math-based occupancy standard tied to the physical size of the unit.
Philadelphia’s Occupancy Rule: The Square Footage Formula
Here’s the standard I use for every property we manage:
- A room that is at least 70 square feet can be occupied by one person.
- A room that is at least 90 square feet (roughly 60+ sq ft per additional person) can be occupied by two people.
- Every additional occupant generally requires another 50 square feet of sleeping space.
In plain English: a small bedroom around 70 sq ft holds one tenant. A standard 90–120 sq ft bedroom holds two. A large bedroom over 140 sq ft could hold three. So a two-bedroom apartment where one bedroom is on the smaller side and one is standard-sized will typically legally house three people.
HUD’s widely-cited guideline is two people per bedroom as a reasonable baseline, but Philadelphia’s Property Maintenance Code is what actually governs you here. Always look at the room sizes, not just the bedroom count.
What About the Basement? Egress Rules Matter
I get this question constantly from Philly rowhome owners: “Can I count my finished basement as a legal bedroom?” The answer is: only if it has two means of egress.
That means:
- Egress #1: The staircase leading up to the main floor.
- Egress #2: A properly sized window or exterior door that a person can escape through during a fire. Egress windows generally need to be at least 5.7 sq ft of opening, with a minimum height of 24 inches and width of 20 inches, and a sill no higher than 44 inches off the floor.
If your basement doesn’t hit that standard, don’t market it as a bedroom. Don’t count it toward occupancy. If a fire happens and someone is trapped down there, you’re not just facing a code violation — you’re facing a lawsuit that could easily wipe out years of rental income. I’ve seen it. It’s not worth it. This is the same reason I push landlords hard on staying ahead of maintenance and code compliance rather than reacting after L&I shows up.
What Tenants Do Inside the Unit Is Their Business
Here’s something a lot of landlords misunderstand: once you’ve established the legal occupancy limit, you don’t get to dictate who sleeps in which room. If a family of three wants both kids to share the bigger bedroom while the parent takes the smaller one — that’s their choice. Your job is to make sure the number of occupants matches what the square footage legally allows.
Put your occupancy standard in writing in your lease agreement and apply it identically to every applicant. That’s how you stay defensible.
How to Enforce Occupancy Without Getting Sued
Here’s the checklist I follow at Grow Property Management for every Philadelphia rental:
- Measure each bedroom and document the square footage before you list the unit.
- Set a written maximum occupancy based on those measurements — not on your gut.
- Apply it uniformly. Every applicant, no exceptions.
- Put it in the lease. Name every adult occupant. Require written approval before anyone new moves in.
- Check your Certificate of Rental Suitability and make sure your rental license reflects the correct unit configuration.
If you’re a newer investor, I’d also strongly suggest reading up on the broader legal requirements for Philadelphia landlords before your first tenant moves in. Occupancy is just one piece of the puzzle.
The Bottom Line
Philadelphia gives you a clear, neutral, math-based way to limit occupancy without ever touching familial status. Use the square footage rules. Confirm your egress. Write it into the lease. Apply it evenly. That’s the formula.
If you allow more people in a unit than the law permits and something bad happens — a fire, a code inspection, an injury — you’re personally on the hook. As a Philly property manager who’s been doing this a long time, I’d rather see you turn away one overcrowded application than lose your whole investment over one avoidable mistake.
Questions on a specific unit? Reach out. Happy rental property investing!
