Two Manhattan apartments. Same price. One costs a thousand dollars a month more to own than the other.
I’m Dewey Moss, with Weichert Properties here in Manhattan. If you’re moving here, you’re probably shopping the way you’d shop anywhere else: by price. But in Manhattan, the price isn’t the number that decides what you can afford. The monthly number is. And nobody shows it to you in one place. So in this week’s video, and in this post, I want to show you how to build it yourself, because the true cost of owning in Manhattan is a monthly figure, not a sticker.
Prefer to watch? The True Monthly Cost of Owning in Manhattan (It’s Not the Price)
Why Price Doesn’t Tell You the Cost of Owning in Manhattan
So, here’s the background. In most of the country, the monthly cost of a home is fairly predictable. Your mortgage, your property taxes, your insurance. If you know the price, you more or less know the payment.
Manhattan doesn’t work that way. Here, you’re not just buying an apartment. You’re buying into a building. And the building sends you a bill every month, for its staff, its upkeep, its taxes, and sometimes its own mortgage. That bill is different in every building, and it isn’t set by the price you paid.
You were never wrong to shop by price. That’s how it works everywhere else. Nobody had explained that here, the price is only one of three parts.
Here’s how I think about it: Borrow. Building. Buffer. What you borrow. What the building charges. And the buffer you keep for the parts that move.
Let’s use one number as we go. A $1.5 million apartment, with 20 percent down. That’s an illustration, not a real listing, and every figure below is built from it.
Borrow: The Part You Already Know
Borrow first. This is your mortgage payment, principal and interest.
On our example, 20 percent down leaves a loan of $1.2 million. On a 30-year loan at 7.4 percent, which was Freddie Mac’s national average for the week of October 8, 2026, the week I filmed this, that works out to about $8,300 a month. Your own rate will be your own, and rates move week to week, so treat that as a dated snapshot rather than today’s quote.
The point is this: that payment would be the same in any apartment at this price. It’s the next number that changes from building to building.
Building: Co-Op Maintenance vs. Condo Common Charges
The building’s bill comes in two forms, depending on what you buy.
- In a Co-Op, it’s called maintenance. One payment. It covers the building’s operating costs (staff, upkeep, insurance) plus your share of the building’s property taxes, and your share of the building’s own mortgage, if it has one.
- In a condo, it’s two payments. Common charges, which cover the building’s operating costs, and your own property tax bill, which you pay separately.
So when you compare a Co-Op to a condo, never compare maintenance to common charges. Compare maintenance to common charges plus taxes. That’s the same number.
Same price. Not the same cost.
Back to our example. Two apartments, both $1.5 million. In one, the building’s bill is $2,400 a month. In the other, it’s $3,400.
Same price. Same mortgage. But one costs about $10,700 a month to carry, and the other about $11,700. That’s the baseline: the mortgage plus the building’s bill, before the extras we’ll get to. (Illustration only; it excludes insurance, utilities, and assessments.)
That’s $12,000 a year. And at 7.4 percent on a 30-year loan, a thousand dollars a month is the principal-and-interest payment on about $145,000 of mortgage. So month to month, the second apartment feels like carrying that much more loan. That doesn’t mean one apartment is worth more than the other. It’s a way to compare two monthly budgets.
Same price. Not the same cost. I will say that again. Same price. Not the same cost. This is exactly where buyers get into trouble. They filter by price, and they never see it.
Now, a lower bill isn’t automatically the better deal. Sometimes it’s low because the building is well run. And sometimes it’s low because the building has been putting off work that’s going to show up later. I made a whole video on telling those apart: Buying a Manhattan Co-Op? Low Maintenance Can Cost You More.
And if you’re buying a Co-Op, the board runs this same math. It looks at your mortgage plus your maintenance, against your income. I walked through that board arithmetic in The Fed Raised Rates: What It Actually Means for Manhattan Buyers. So the monthly number doesn’t only decide what’s comfortable for you. It decides which buildings you’re positioned to buy in.
Buffer: The Four Things That Move
Third, the buffer. This is the money you set aside for the parts of the monthly number that move. Four things move.
- Assessments. When a building has a major project, a facade, a roof, an elevator, it can charge owners an extra amount each month for a period of time. And that’s not in the maintenance figure on the listing. Here’s a hypothetical: say the apartment with the $2,400 bill has a $400 monthly assessment for the next three years. Your real bill is $2,800, and nearly half of that advantage is gone before you move in. So ask: is there an assessment, how much is it, and when does it end?
- Increases. When a building’s costs go up (taxes, insurance, labor) its maintenance or common charges can go up with them. Ask what the bill has done over the last few years.
- Your own costs inside the apartment. Homeowner’s insurance. Electricity. Internet. Heat and water are often included in the building’s bill, but not always. Ask.
- How you’ll use it. If this would be a second home and not your primary residence, owning it can come with additional taxes in New York City, and those rules have been changing. Ask your attorney or your tax adviser how they’d apply to you before you set your budget.
None of these is a reason not to buy. They’re the reason to keep a buffer, and to know the full number before you get attached to an apartment.
How to Budget by the Monthly Number
So, what do you actually do with this? Three things.
- Build the baseline monthly number first. On every listing, before you look at the photos: mortgage, plus maintenance (or common charges plus taxes), plus any assessment.
- Set your budget by the month, and let that decide your price range. Not the other way around. When two apartments are close, use the conversion: at the rate above, every thousand dollars a month is roughly the payment on $145,000 of mortgage.
- Ask about the bill’s history, and its future, early. What has it done over the last few years, and what work is the building planning?
And I’ll say this plainly. None of this is hidden. But it doesn’t all arrive at once. The monthly charges are on the listing. An assessment, or a recent increase, is something your agent can ask the seller’s side about before you make an offer. And the deeper look, the building’s financial statements and its board minutes, usually happens after your offer is accepted and before you sign a contract, with your attorney. Knowing what to ask, and when to ask it: that’s part of my job.
The Lesson
Borrow. Building. Buffer. The mortgage is the part you expected. The building is the part that changes from address to address. And the buffer is what keeps a surprise from becoming a problem.
The price tells you what it costs to get in. The monthly number tells you what it costs to stay.
Your Next Step
If you’re planning a move to Manhattan, book a 30-minute call with me. We’ll build your monthly number together, work back to the price range that fits it, and look at which buildings you’re actually positioned to buy in.
Not ready to talk yet? Start with the free NYC Buyer’s Cheat Sheet, and if you’re relocating, grab the free Moving to Manhattan Guide too.
Dewey Moss, Licensed Real Estate Salesperson | Weichert Properties | NY Lic. #10401350036 · Equal Housing Opportunity
Sources: mortgage rate from Freddie Mac’s Primary Mortgage Market Survey (30-year fixed average 7.40%, week of October 8, 2026); Co-Op maintenance vs. condo common charges per Hauseit (updated December 2025). The $1.5 million example, its monthly charges, and the assessment scenario are illustrations, not listings. Monthly figures are a baseline of principal and interest plus the building’s charges and exclude insurance, utilities, and other costs. The $145,000 figure compares monthly payments only and is not a statement of value.
This post is general information only, not legal, tax, lending, or financial advice.