Hi, Joe White here from Grow Property Management. One of the trickiest questions I get from Philly landlords is deceptively simple: how many people can I legally allow to live in my rental unit? Get it wrong and you’re either staring down a fair housing complaint from HUD or a code violation from L&I — either one can cost you $10,000+ in fines, legal fees, and lost rent. Get it right, and you protect your investment, your tenants, and your sanity.
I recently got an anonymous question from a landlord who was being accused of violating fair housing law — specifically familial status — because they tried to cap the number of tenants in a unit. This is one of the most common traps I see in Philadelphia, so let me walk you through exactly how the city handles occupancy limits, why familial status matters, and how to set a defensible standard.
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’s Fair Practices Ordinance layers on more — including source of income, sexual orientation, gender identity, marital status, and domestic/sexual violence victim status. 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”
- “This unit isn’t suitable for children”
Even hinting that you’d prefer a single male tenant over a family of four is a violation. HUD complaints routinely settle in the $16,000–$50,000 range for a first offense, and the Philadelphia Commission on Human Relations takes these cases 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
Philadelphia’s Property Maintenance Code sets the actual legal ceiling. Here’s the standard I use for every property we manage:
- A room of at least 70 square feet can be occupied by one person.
- A room of at least 90 square feet 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 90–140 sq ft bedroom holds two. A large bedroom over 140 sq ft could hold three.
A Real Philly Example
Take a typical Fishtown or South Philly rowhome two-bedroom. Front bedroom is 11×12 (132 sq ft). Back bedroom is 8×9 (72 sq ft). Legal max: two people in the front, one person in the back = three total occupants. That’s the number that goes in the lease. Not “a couple with no kids.” Not “two adults max.” Three human beings, regardless of age or relationship.
HUD’s widely-cited guideline is two people per bedroom as a reasonable baseline, but in Philadelphia the Property Maintenance Code is what actually governs you. Measure the rooms — don’t just count bedrooms on a listing.
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 independent means of egress.
That means:
- Egress #1: The staircase leading up to the main floor.
- Egress #2: A properly sized egress window or exterior door. The window opening needs to be at least 5.7 sq ft, with a minimum height of 24 inches, minimum 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. Don’t let a tenant “just use it as an office that sometimes has a bed in it.” If a fire happens and someone is trapped down there, you’re not just facing a code violation — you’re facing a wrongful death lawsuit that will easily wipe out a decade of rental income. I’ve seen it happen in this city. 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 call. If two roommates want to convert the living room into a third sleeping area for a partner who visits four nights a week — that’s a gray area, but as long as your total occupancy count is legal, you’re generally fine.
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 in writing before you list the unit. Take photos of the tape measure if you have to.
- Set a written maximum occupancy based on those measurements — not on your gut, and not on “how the last tenants used it.”
- Apply it uniformly. Every applicant, every showing, every listing. No exceptions for people who “seem like a good fit.”
- Put it in the lease. Name every adult occupant. Require written approval before anyone new moves in for more than 14 consecutive days.
- Screen every adult occupant. Run the same background and income check on all of them. Consistency is your best legal defense.
- Confirm your Certificate of Rental Suitability and rental license reflect the correct unit configuration and bedroom count.
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 — rental licenses, lead certifications, and CRS requirements all stack on top.
The Bottom Line on Philly Occupancy Limits
Philadelphia gives you a clear, neutral, math-based way to limit occupancy without ever touching familial status. Measure the rooms. Apply the square footage rule. Confirm your egress. Write it into the lease. Apply it evenly to every applicant who walks through the door. That’s the formula.
If you allow more people in a unit than the law permits and something bad happens — a fire, an L&I inspection triggered by a neighbor complaint, a tenant 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 the whole investment over one avoidable mistake.
Questions on a specific unit? Reach out. Happy rental property investing!
