Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

Luxury NYC Real Estate

1,946 properties priced at $3M and above

What a $3M+ NYC Apartment Purchase Involves

Buying a $3M+ apartment in NYC means a mansion tax of at least 1.50% of the full price, paid by the buyer at closing: $45,000 on a $3,000,000 contract, rising to 2.25% at $5,000,000, 3.25% at $10,000,000 and 3.90% at $25,000,000 and above. The rate applies to the whole price, so it is a cash cost on top of the down payment that a mortgage will not cover.

At this level the choice between a co-op and a condo shapes the whole purchase. A co-op purchase is a transfer of shares, and the board reviews the buyer's full financial package before approving it; a condo is deeded real property and generally needs no board approval. The mansion tax applies to both, since there is no co-op exemption.

Luxury Real Estate in NYC

NYC's luxury market ($3M+) includes full-service condos, pre-war co-ops in prime locations, penthouses, and townhouses. At this price point, buyers expect private viewings, early word on Coming Soon listings, and discretion throughout the transaction.

With over 25 years in NYC real estate, I search both REBNY RLS and OneKey MLS, including Coming Soon listings when the listing broker files them, and I call listing brokers directly about higher-price inventory. Use the form below to start a private search.

Ask for a private search

Tell me the price range and what you are after in NYC. I read every request myself, and nothing you write here is shared with a listing broker without your say.

Milton Coste | Licensed Real Estate Associate Broker | Keller Williams NYC | License #10301213304

You're contacting Milton Coste, a buyer's agent. Before any private showing, New York brokerage rules require a short non-exclusive agreement. Milton walks you through it before you sign anything. Broker commissions are not set by law and are fully negotiable. How working together works.

50 W 66TH Street #56S Active

$37,500,000

Condo
5 bd | 7 ba |4,982 sqft

50 W 66TH Street #56S

Lincoln Square

Corcoran Group RLS
255 E 77th Street #PHDUPLEX Active

$37,500,000

Condo
7 bd | 7 ba |7,206 sqft

255 E 77th Street #PHDUPLEX

Upper East Side

Compass RLS
111 W 57th Street #PH82 Active

$37,500,000

Condo
2 bd | 3 ba |5,586 sqft

111 W 57th Street #PH82

Midtown

Modlin Group LLC RLS
50 W 66TH Street #58N Active

$36,500,000

Condo
4 bd | 5 ba |4,878 sqft

50 W 66TH Street #58N

Lincoln Square

Corcoran Group RLS
50 W 66TH Street #58N Active

$36,500,000

Condo
4 bd | 6 ba |4,878 sqft

50 W 66TH Street #58N

Lincoln Square

Douglas Elliman Real Estate RLS
50 W 66th Street #58N Active

$36,500,000

Condo
4 bd | 6 ba |4,878 sqft

50 W 66th Street #58N

Lincoln Square

Extell Marketing Group LLC RLS
1030 Fifth Avenue #10th Floor Active

$35,750,000

Co-op
5 bd | 6 ba |6,000 sqft

1030 Fifth Avenue #10th Floor

Upper East Side

Modlin Group LLC RLS
1030 5TH Avenue #10THFLOOR Active

$35,750,000

Co-op
5 bd | 6 ba

1030 5TH Avenue #10THFLOOR

Upper East Side

Brown Harris Stevens Residential Sales LLC RLS
1040 5th Avenue #16 Active

$35,000,000

Co-op
4 bd | 0 ba

1040 5th Avenue #16

Upper East Side

Sothebys International Realty RLS
730 Fifth Avenue #19A Active

$35,000,000

Condo
3 bd | 4 ba |3,707 sqft

730 Fifth Avenue #19A

Midtown

Aman Property DE RLS
10 E 73rd Street Active

$35,000,000

Single Family Residence
6 bd | 8 ba |8,800 sqft

10 E 73rd Street

Lenox Hill

Sothebys International Realty RLS
1040 5th Avenue #16 Active

$35,000,000

Co-op
4 bd | 5 ba

1040 5th Avenue #16

Upper East Side

Compass RLS
9 E 88TH Street Active

$35,000,000

Single Family Residence
8 bd | 9 ba

9 E 88TH Street

Carnegie Hill

Berkshire Hathaway HomeServices New York Properties RLS
45 E 78th Street Active

$35,000,000

Single Family Residence
9 bd | 5 ba |17,600 sqft

45 E 78th Street

Upper East Side

Modlin Group LLC RLS
53 W 53RD Street #66 Active

$34,400,000

Condo
4 bd | 5 ba |6,279 sqft

53 W 53RD Street #66

Midtown

Douglas Elliman Real Estate RLS
1016 5th Avenue #2ABC Active

$34,000,000

Co-op
6 bd | 8 ba |8,200 sqft

1016 5th Avenue #2ABC

Upper East Side

Sothebys International Realty RLS
121 E 65th Street Active

$34,000,000

Single Family Residence
7 bd | 9 ba |9,365 sqft

121 E 65th Street

Lenox Hill

Sothebys International Realty RLS
125 E 65TH Street Active

$33,000,000

Single Family Residence
6 bd | 8 ba |14,346 sqft

125 E 65TH Street

Lenox Hill

Serhant RLS
15 CENTRAL Park W #15B Active

$33,000,000

Condo
4 bd | 4 ba |3,364 sqft

15 CENTRAL Park W #15B

Lincoln Square

Corcoran Group RLS
601 WASHINGTON Street #PHE Active

$33,000,000

Condo
6 bd | 7 ba |7,475 sqft

601 WASHINGTON Street #PHE

West Village

Brown Harris Stevens Residential Sales LLC RLS
704 Broadway #PH Active

$32,500,000

Condo
5 bd | 6 ba |8,000 sqft

704 Broadway #PH

NoHo

Modlin Group LLC RLS
432 PARK Avenue #71A Active

$32,000,000

Condo
4 bd | 5 ba |4,019 sqft

432 PARK Avenue #71A

Midtown East

Corcoran Group RLS
432 PARK Avenue #71B Active

$32,000,000

Condo
4 bd | 5 ba |4,019 sqft

432 PARK Avenue #71B

Midtown East

Corcoran Group RLS
25 Columbus Circle #75CE Active

$32,000,000

Condo
5 bd | 7 ba |4,540 sqft

25 Columbus Circle #75CE

Upper West Side

Sothebys International Realty RLS
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Frequently Asked Questions

What is the NYC mansion tax?
NYC imposes a mansion tax on purchases of $1M+ residential properties. The tax starts at 1% and increases progressively up to 3.9% for properties over $25M. This is paid by the buyer at closing.
Can I hear about luxury listings before they are widely advertised?
Sometimes. Some sellers start as Coming Soon on the RLS before full marketing, and REBNY rules set what can be shared and when. As a Licensed Real Estate Associate Broker at Keller Williams NYC, I search both REBNY RLS and OneKey MLS and tell clients about Coming Soon listings as soon as the rules allow.

Explore More

NYC Buyer GuidePrice DropsManhattan LuxuryBrooklyn LuxuryNYC Homes $1M-$2MNYC Homes $2M-$3MAll Market Reports
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved.
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