Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

Luxury NYC Real Estate

1,934 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 #42W Active

$16,900,000

Condo
3 bd | 4 ba |2,816 sqft

50 W 66TH Street #42W

Lincoln Square

Douglas Elliman Real Estate RLS
50 W 66th Street #42W Active

$16,900,000

Condo
3 bd | 4 ba |2,816 sqft

50 W 66th Street #42W

Lincoln Square

Extell Marketing Group LLC RLS
25 Central Park W #21J Active

$16,900,000

Condo
4 bd | 4 ba |3,432 sqft

25 Central Park W #21J

Upper West Side

Compass RLS
50 W 66TH Street #42W Active

$16,900,000

Condo
3 bd | 4 ba |2,816 sqft

50 W 66TH Street #42W

Lincoln Square

Corcoran Group RLS
303 PARK Avenue #2711 Active

$16,875,000

Condo
4 bd | 5 ba |2,756 sqft

303 PARK Avenue #2711

Midtown East

Douglas Elliman Real Estate RLS
1030 5TH Avenue #8W Active

$16,750,000

Co-op
3 bd | 6 ba

1030 5TH Avenue #8W

Upper East Side

Brown Harris Stevens Residential Sales LLC RLS
1030 Fifth Avenue #8W Active

$16,750,000

Co-op
3 bd | 5 ba |4,000 sqft

1030 Fifth Avenue #8W

Upper East Side

Modlin Group LLC RLS
85 FLEET Street #PH92 Active

$16,750,000

Condo
4 bd | 6 ba |5,891 sqft

85 FLEET Street #PH92

Downtown Brooklyn

Corcoran Sunshine Marketing Group RLS
838 CARROLL Street Active

$16,500,000

Multi Family
11 bd | 7 ba |8,200 sqft

838 CARROLL Street

Park Slope

Douglas Elliman Real Estate RLS
60 E 88TH Street #PH Active

$16,500,000

Condo
5 bd | 6 ba |3,660 sqft

60 E 88TH Street #PH

Carnegie Hill

Corcoran Group RLS
990 5th Avenue #4/5 Active

$16,500,000

Co-op
4 bd | 6 ba

990 5th Avenue #4/5

Upper East Side

Sothebys International Realty RLS
21 E 81ST Street Active

$16,500,000

Multi Family
6 bd | 6 ba |8,538 sqft

21 E 81ST Street

Upper East Side

Serhant RLS
18 GRAMERCY Park S #14 Active

$16,000,000

Condo
4 bd | 6 ba |4,207 sqft

18 GRAMERCY Park S #14

Gramercy Park

Brown Harris Stevens Residential Sales LLC RLS
163 W 76TH Street Active

$16,000,000

Single Family Residence
6 bd | 7 ba |8,000 sqft

163 W 76TH Street

Upper West Side

Coldwell Banker Warburg RLS
51 E 67TH Street #TH Active

$16,000,000

Condo
7 bd | 7 ba |8,270 sqft

51 E 67TH Street #TH

Lenox Hill

Serhant RLS
1040 5th Avenue #5/6C Active

$16,000,000

Co-op
4 bd | 5 ba

1040 5th Avenue #5/6C

Upper East Side

Compass RLS
515 PARK Avenue #29 Active

$16,000,000

Condo
4 bd | 4 ba |3,257 sqft

515 PARK Avenue #29

Lenox Hill

Douglas Elliman Real Estate RLS
53 W 53RD Street #52A Active

$16,000,000

Condo
4 bd | 5 ba |3,910 sqft

53 W 53RD Street #52A

Midtown

Douglas Elliman Real Estate RLS
1 CENTRAL Park S #PH2003 Active

$16,000,000

Condo
3 bd | 4 ba |3,974 sqft

1 CENTRAL Park S #PH2003

Central Park South

Corcoran Group RLS
56 LEONARD Street #47WEST Active

$15,995,000

Condo
4 bd | 5 ba |3,576 sqft

56 LEONARD Street #47WEST

Tribeca

Susan Penzner Real Estate RLS
56 Leonard Street #47WEST Active

$15,995,000

Condo
4 bd | 5 ba |3,576 sqft

56 Leonard Street #47WEST

Tribeca

Compass RLS
336 W 23RD Street Active

$15,950,000

Mixed Use
8 bd | 10 ba |12,049 sqft

336 W 23RD Street

Chelsea

Corcoran Group RLS
500 W 18th Street #28B Active

$15,950,000

Condo
3 bd | 4 ba |3,141 sqft

500 W 18th Street #28B

Chelsea

CORE Group Marketing LLC RLS
20 W 53rd Street #42A Active

$15,950,000

Condo
4 bd | 5 ba |4,730 sqft

20 W 53rd Street #42A

Midtown

Compass 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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