A buyer under contract on a three-family in Union City built the entire offer around one assumption: move into the ground floor, keep the tenants above, and raise rent on those upper units at a reasonable clip once market conditions justified it. A local real estate attorney who works Hudson County closings caught the problem before the deal closed. The city had changed how it applies rent control to three-family buildings, and the buyer's projected rents were no longer legal. The purchase fell apart. According to an account published by Cecinini Law, that same ordinance shift killed a second purchase the attorney was working on.
That is the risk hiding inside almost every two- and three-family listing in Union City. The building looks like straightforward income property. The rent control ordinance treats it as something else entirely, and the difference shows up after the ink dries, not before.
Owner-occupancy doesn't mean what buyers think it means
In Hoboken and Jersey City, buyers of small multi-family properties are used to a fairly clean rule: newer construction is exempt, older buildings are covered, and owner-occupancy in a small building often gets you out from under rent control entirely. Union City's ordinance, codified as Chapter 334, follows a different and more conditional logic.
The current code specifically addresses three-family buildings where the owner moves into one unit. That move does not create an automatic exemption. Under the ordinance, a rental unit in a three-family building only becomes exempt from rent control once the tenant who was living there before the owner moved in vacates, and only if the owner's occupancy began before April 1, 2018. Buy a three-family today, move into the vacant unit, and the two rented units stay under rent control regardless of your occupancy status. The exemption clock started years ago for anyone who might qualify. It is not something a 2026 buyer can trigger by moving in.
The rules also differ by building size, and the differences are not intuitive:
| Building size | Rent control status |
|---|---|
| 2 units | Generally not covered |
| 3 units, owner-occupied since before April 1, 2018 | Exempt once the pre-existing tenant vacates |
| 3 units, owner-occupied after April 1, 2018 | Still covered, no automatic exemption |
| 4-unit, owner-occupied as of the 2018 ordinance amendment | Grandfathered exempt while that same owner stays in place |
| 5- and 6-unit, owner-occupied as of the 2017 ordinance amendment | Grandfathered exempt while that same owner stays in place |
| Any exempt unit, once the qualifying owner moves out | Becomes covered by rent control again |
Every one of those carve-outs is tied to a specific date and a specific owner. None of it transfers cleanly to a new buyer just because the building is small or the buyer plans to live there.
The paper trail follows the property, not the seller
The ordinance history explains why. Union City's own code recounts that rent control was scaled back in the early 2000s to exempt small buildings, then reinstated because of what the city itself has called a housing emergency tied to demolitions, deteriorating stock, and inflation outpacing rents. Every subsequent amendment layered new grandfathering language on top of the old, which is how a buyer today ends up needing to know what a specific unit's occupancy status was in 2017 or 2018, not just what it is now.
That history matters at the closing table because of an appellate ruling most out-of-town buyers have never heard of. In Willow Ridge Apartments, LLC v. Union City Rent Stabilization Board, the Appellate Division held that a new owner cannot claim an exemption from local rent control if the previous owner never completed the procedural filing required to establish it, even if that previous owner genuinely qualified. The exemption paperwork attaches to the building's history, not to whoever happens to hold the deed. A seller who never filed the required exemption notice with the Rent Control Office leaves that gap for the next owner to inherit.
This is not a title issue a standard search catches. It is a compliance history question, and in Union City it needs to be asked before signing, not after closing.
A 2023 ruling added more uncertainty, not less
Union City's rent control administration has also drawn direct legal criticism. In September 2023, a state Superior Court judge found parts of how the city applies its rent control rules unconstitutional, a ruling reported by NJ.com. It was described at the time as a rare procedural win for landlords in a state where tenant protections are unusually strong. The practical effect for buyers is not that Union City suddenly became easier to underwrite. It confirmed that the city's administration of its own ordinance has been inconsistent enough to draw a constitutional challenge, which is exactly the kind of local, case-specific risk a rent roll and a home inspection will never flag.
Why the numbers still work harder here
None of this makes Union City a market to avoid. It is the reason the math still works here for investors after it has stopped working two towns over.
Two-family listings in spring 2026 ranged from roughly $550,000 to $1.4 million, a spread wide enough to cover two very different buyers in the same category. At the lower end are first-time owner-occupants buying their initial income property. At the upper end are investors picking up converted buildings closer to the Hoboken border, where proximity carries its own premium separate from the rent control question entirely.
The multi-family math that has gotten harder to find in Hoboken and Downtown Jersey City was still available here as of that same stretch. A three-family priced near $900,000 was generating gross rent above $6,000 a month, a yield profile that investors moving over from those two markets say they simply cannot replicate there anymore. Bergenline Avenue corridor buildings, in particular, carry the lowest vacancy risk in the city, since renters who want walkable access to the retail and dining strip choose those blocks first.
The regulatory complexity is part of what keeps that pricing gap open. Buyers who do not investigate exemption history, occupancy timelines, and filing compliance before writing an offer are the ones most likely to overpay based on rent projections that later prove unenforceable. Buyers who do the work capture a real yield advantage precisely because the friction scares off buyers who skip it.
There is a second layer worth budgeting for separately. Hudson County properties are assessed at a fraction of market value, and a sale often triggers a reassessment. Running the numbers against the current assessed value and the county's equalization ratio, not just the listed tax bill, avoids a surprise on the first tax cycle after closing.
Before you write an offer on a Union City two- or three-family
- Pull the rent control registration history for the building, not just the current rent roll, from the city's Rent Control Office.
- Confirm in writing whether any unit's exemption claim was ever filed, and by whom. A prior owner's failure to file does not disappear at closing.
- If the building is a three-family with an owner-occupied unit, verify the occupancy start date. Only occupancy that began before April 1, 2018 has any path to exemption, and only once the original tenant vacates.
- For four-, five-, and six-unit buildings, check whether the current owner-occupant has continuously lived there since the relevant 2017 or 2018 ordinance date. A change in owner-occupant resets the clock.
- Have your attorney check for any base rent disputes. Base rents that trace back to 1973 under the ordinance can be recalculated years later if increases were never properly registered, sometimes cutting current rent in half.
- Run a post-sale tax estimate using the county equalization ratio, not the seller's current tax bill.
A few questions buyers ask before they commit
Does buying a two-family avoid rent control entirely? Two-unit buildings generally fall outside Union City's rent control ordinance. Confirm the actual unit count with the certificate of occupancy, not the marketing description, since some listings describe illegal or unregistered third units.
If I move into a three-family today, when does rent control stop applying to the other units? Under the current ordinance, moving in today does not start an exemption clock. The exemption for owner-occupied three-family buildings only applies to occupancy that began before April 1, 2018, and only takes effect once the tenant who lived there before the owner moved in has vacated.
Can I ask the seller to resolve exemption filing gaps before closing? Yes, and it is worth requesting in writing as part of the contract. Given the Willow Ridge precedent, a documented filing before closing protects the buyer far more than a verbal assurance that the building "has always been exempt."
Union City rewards buyers who treat the rent control ordinance as part of the property inspection, not a footnote to it. If you are weighing a two- or three-family purchase here and want the occupancy history and exemption paperwork checked before you're locked into a contract, Karina Ayubi can walk the numbers with you against the actual ordinance, not the assumption. Let's Connect.
