Buying an Apartment in a Mixed-Use Building in NYC

We represent buyers in these buildings, and the deals that go wrong all miss the same two documents. Here’s what to check and why the deli downstairs can be a bargain or a headache.

What is a mixed-use building

A mixed-use building is zoned for both commercial and residential use. In NYC, that happens in two ways: it’s built that way, or an old commercial or industrial building gets converted while keeping ground-floor retail. Think apartments over a pharmacy, a gym, or a restaurant.

The deli downstairs is a feature until it’s a water bill. Most of the time, it’s fine, and often it’s a plus. But a mixed-use building hands you a few risks a purely residential one doesn’t, and they’re all knowable before you make an offer. Our buying process guide covers the standard due diligence; this is the extra layer.

Buying a condo in a mixed-use building in NYC

Almost every mixed-use apartment for sale is a condo, not a co-op. The first check is the simplest and the most skipped: does the certificate of occupancy allow residential use for your unit?

The paper says mixed use; the loan officer decides if that’s true enough. Buildings that operate as mixed-use aren’t always mixed-use on the C of O, and buyers have closed on an “apartment” in a legally commercial building. Your attorney and agent pull the C of O from the Department of Buildings and check it against the zoning. If it doesn’t clearly permit your unit as a residence, walk.

How common charges get split

This is the one that quietly costs money. In a condo, the offering plan and by-laws set each unit’s share of common charges. In a mixed-use building, the commercial unit’s share is whatever the sponsor wrote down before you existed.

A sponsor who keeps the commercial space, or sells it to a related party, can write the plan to give that unit light responsibilities. A capped contribution to the roof, the facade, and the elevator. The residential owners carry the rest.

Separate utility meters matter for the same reason. If the commercial tenant is a laundromat and there’s a single water meter, you’re helping pay for their washing.

Financing a mixed-use apartment

Get a lender’s read before you fall in love with the unit. Every lender you call will ask what’s on the ground floor before they ask anything about you. FHA guidelines require “a minimum of 51% of the entire building square footage” to be residential. Conventional and agency loans also cap the commercial share of an eligible condo project, historically at around a third.

The exact figure moves, so ask your lender about the specific building. A building that’s too commercial to finance normally isn’t unbuyable, but your pool of lenders shrinks, and rates rise. That also shrinks your future buyer pool when you sell.

Price that in. The closing cost calculators help you model the deal, and if a commission rebate is on the table, it can offset the higher early cost of a higher rate.

The upside nobody markets

Mixed-use buildings can be a genuine value. They often cost less per square foot than an all-residential building in the same block. Your neighbors go home at 6 and file no noise complaints. A staffed business at street level is a decent set of eyes on the door.

The trade-off is that a bad commercial neighbor, a late-night bar, or a restaurant with a pest problem is harder to remove than a bad resident. Scope the ground floor before you offer, and picture it in five years.

What do we check before a client makes an offer?

For a mixed-use building, we add three things to the normal review. We pull the C of O and match it to the zoning. We read the by-laws for the part about who pays for the roof. And we get a lender to confirm, in writing, that the building can be financed on the terms the client is counting on.

Georges’ rule on buildings like this is the same as his rule on everything: run the numbers first. A mixed-use apartment that pencils out with the real common charges and a real rate is a fine buy. One that only works if you ignore the offering plan is not.

Common questions

Is it harder to get a mortgage on a mixed-use apartment? Often, yes. FHA needs the building to be at least 51% residential by square footage, and conventional loans cap the commercial share of the condo project. Confirm with your lender before you make an offer.

What is the risk with common charges in a mixed-use building? The offering plan can assign the commercial unit a small, capped share of building expenses, leaving residential owners to cover more of the costs for the roof, facade, and elevator. Read the by-laws.

How do I confirm a building is legally mixed-use? Your attorney pulls the certificate of occupancy from the Department of Buildings and checks it against the zoning. The C of O has to permit residential use for your unit.

Are mixed-use apartments cheaper? Frequently. They often trade below all-residential units nearby, partly because financing is tighter and partly because some buyers avoid ground-floor businesses. That discount can be a real value if the building checks out.

Written by Nicole Fishman Benoliel

Co-founder of NestApple and a lawyer admitted to the New York bar, not currently practising.