RealtyLens
for saleRealtyLens property overview
$3,800,000

870 United Nations Plz Units 37 & 38A

Manhattan, NY, 10017
View more Manhattan, NY property pages
4Beds
5.5Baths
3,864Sqft
$983$/sqft

Listing Notes

Beautiful Duplex Home with Breathtaking Views Enjoy some of the most spectacular South and West views anywhere in Manhattan from this elegant Duplex Penthouse home, which offers a luxurious Park Avenue sensibility along with incomparable value all wrapped up in one very special large package of nearly 4, 000 sq ft. The grand foyer leads to a Living Room with a wood burning fireplace and stunning east river and city views. The elegant Dining Room offers equally striking vistas, along with an Eat-In Kitchen featuring professional grade appliances plus a Butler's Pantry with wet-bar, wine storage and a Powder Room. A Library/Fourth Bedroom with en-suite bath completes this floor and a grand staircase, private elevator, or staff stairway connect to the upper level. The Upper Level (38th flr.) boasts three bedrooms and a staff room with a laundry area and private bath. The primary Bedroom features a large marble Bathroom, walk-in closet, and magnificent views, while two additional large bedrooms with walk-in closets and en-suite baths complete the floor. High ceilings and cedar closets abound along with Central A/C and beautiful dcor. Amenities: Fitness Center; Pilates Studio; Private lounge with Entertainment & Conference Rooms; Golf simulator; Billiards Room; in-house Dry Cleaning; Sun Decks and Garage. Pets welcome. Apartments can be purchased with a Qualified Personal Residential Trust. Foreign buyers welcome with US based assets. 80% financing permitted. Buyer pays 3% flip tax.

Market Insights

Below nearby median-40%

$983/sqft vs a nearby median of $1647/sqft.

Nearby median$1647/sqft
Nearby properties12
Property size3,864 sqft
  • -40% versus the nearby median price per square foot.
  • Price history is limited, so current comps matter more than trend alone.
  • 3,864 sqft creates a usable price-per-square-foot read.

Pricing Read

Yardstick fair value$5.75M$5.23M$6.26M · 50% confidence
vs ask $3.80M−$1.95M (−51.3%)

Asking price is about 51.3% below the fair value — likely to draw competing offers if it's still on market.

$1,583/sqft median across 10 tight comps × 3,864 sqft= $6.12M
  • Days-on-market gravity−$183k −3.0%
  • Visible condition issues−$122k −2.0%
  • Mid-century building era−$92k −1.5%
  • Transit access+$31k +0.5%
Cumulative NYC adjustments−$367k−6.0%

Property Read

FreshnessVerification recommended

The page is useful for research, but the status and price should be verified before acting.

Market Position-40% vs nearby

The asking price per square foot is below the nearby median, which can be worth a closer comp check.

Price MovementInitial price point

Price history is still limited; review again as more market activity becomes available.

Diligence Read3 items to check
AI ReadinessReady to analyze
Assistant read

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Generated from the facts shown on this page and nearby market data. Not a professional appraisal.

Listing Details

Days on market
197 days
Last price change
No change recorded
Listed
Oct 27, 2025
Photos
21 photos
Property type
coop
Status
for sale

Features & Amenities

DoormanElevatorFireplaceTwo Or More StoriesGarage 1 Or MoreHigh CeilingBig BathroomLibraryElevatorEnsuiteBreathtaking ViewsViewsWet BarWine StorageWalk In ClosetDenGolf Course

Photos

Building Facts

Year built
1967
Stories
37
Total units
85
Building area
7.05 ac
Lot size
2.03 ac
Land use
Commercial and office buildings
Building class
RC

From NYC public records where available.

Price History

May 4, 2026Initial record
$3,800,000for sale

You can also find this listing on StreetEasy.

Listing data sourced from streeteasy.com. RealtyLens enriches and contextualises it for you, but the original listing lives on the source.