Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

Luxury NYC Real Estate

1,957 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 #51E Active

$54,000,000

Condo
5 bd | 6 ba |6,942 sqft

50 W 66th Street #51E

Lincoln Square

Extell Marketing Group LLC RLS
175 5TH Avenue #FLOOR20 Active

$53,500,000

Condo
5 bd | 6 ba |7,377 sqft

175 5TH Avenue #FLOOR20

Flatiron

Corcoran Sunshine Marketing Group RLS
5 E 63RD Street Active

$52,000,000

Single Family Residence
8 bd | 11 ba |16,138 sqft

5 E 63RD Street

Lenox Hill

Serhant RLS
70 W 45TH Street #COMBO Active

$50,000,000

Condo
10 bd | 9 ba |8,300 sqft

70 W 45TH Street #COMBO

Midtown

Corcoran Group RLS
10-12 E 94th Street Active

$50,000,000

Single Family Residence
5 bd | 10 ba |15,235 sqft

10-12 E 94th Street

Upper East Side

Compass RLS
10-12 E 94th Street Active

$50,000,000

Single Family Residence
5 bd | 8 ba |15,235 sqft

10-12 E 94th Street

Carnegie Hill

Modlin Group LLC RLS
18 E 80th Street Active

$49,995,000

Single Family Residence
5 bd | 8 ba |14,125 sqft

18 E 80th Street

Upper East Side

Compass RLS
390 W END Avenue #7GH Active

$49,995,000

Condo
7 bd | 8 ba |8,400 sqft

390 W END Avenue #7GH

Upper West Side

Douglas Elliman Real Estate RLS
217 W 57th Street #77-EW Active

$48,800,000

Condo
7 bd | 8 ba |7,369 sqft

217 W 57th Street #77-EW

Midtown West

Nest Seekers LLC RLS
217 W 57th Street #110 Active

$47,900,000

Condo
5 bd | 6 ba |7,074 sqft

217 W 57th Street #110

Midtown

Extell Marketing Group LLC RLS
944 5TH Avenue #11FLR/MAIS Active

$47,500,000

Co-op
4 bd | 4 ba

944 5TH Avenue #11FLR/MAIS

Lenox Hill

Corcoran Group RLS
122 Waverly Place Active

$45,000,000

Single Family Residence
4 bd | 6 ba

122 Waverly Place

Greenwich Village

Keller Williams NYC RLS
1 CENTRAL Park S #1701/2/4/6 Active

$45,000,000

Condo
4 bd | 6 ba |6,000 sqft

1 CENTRAL Park S #1701/2/4/6

Central Park South

Serhant RLS
51 E 80th Street Active

$45,000,000

Single Family Residence
7 bd | 8 ba |10,252 sqft

51 E 80th Street

Upper East Side

Modlin Group LLC RLS
1 CENTRAL Park S #PH2003/09 Active

$45,000,000

Condo
7 bd | 9 ba |10,290 sqft

1 CENTRAL Park S #PH2003/09

Central Park South

Corcoran Group RLS
212 W 18th Street #Penthouse2 Active

$42,500,000

Condo
5 bd | 6 ba |6,783 sqft

212 W 18th Street #Penthouse2

Chelsea

DGSIR Realty RLS
117 E 70TH Street Active

$40,000,000

Single Family Residence
19 bd | 9 ba

117 E 70TH Street

Lenox Hill

Brown Harris Stevens Residential Sales LLC RLS
15 CENTRAL Park W #16/17B Active

$40,000,000

Condo
4 bd | 5 ba |5,417 sqft

15 CENTRAL Park W #16/17B

Lincoln Square

Douglas Elliman Real Estate RLS
111 W 57th Street #PH80 Active

$39,950,000

Condo
3 bd | 4 ba |5,894 sqft

111 W 57th Street #PH80

Midtown

Modlin Group LLC RLS
1122 MADISON Avenue #FLOOR15 Active

$38,950,000

Condo
5 bd | 6 ba |5,251 sqft

1122 MADISON Avenue #FLOOR15

Upper East Side

Corcoran Sunshine Marketing Group RLS
1122 MADISON Avenue #FLOOR17 Active

$38,750,000

Condo
5 bd | 6 ba |5,251 sqft

1122 MADISON Avenue #FLOOR17

Upper East Side

Corcoran Sunshine Marketing Group RLS
50 W 66th Street #56S Active

$37,500,000

Condo
5 bd | 7 ba |4,982 sqft

50 W 66th Street #56S

Lincoln Square

Extell Marketing Group LLC RLS
520 Park Avenue #PH59 Active

$37,500,000

Condo
3 bd | 4 ba |4,322 sqft

520 Park Avenue #PH59

Lenox Hill

Compass RLS
50 W 66TH Street #56S Active

$37,500,000

Condo
5 bd | 7 ba |4,982 sqft

50 W 66TH Street #56S

Lincoln Square

Douglas Elliman Real Estate 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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