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Office Condominium in Gem Tower
For Sale
$980,000

50 W 47th St 10U, New York, NY 10036

Office condominium inside International Gem Tower with 24/7 security and building systems designed for professional use.

Property Size900 SF
Days on Market31

Property Features for 50 W 47th St 10U

General Information

Standard status Active
Size 900 SF
Property subtype Commercial

Taxes and HOA fees

Annual Taxes $11,509

Building Details

Building Size 900 SF
Year Built 2009
Stories 1
Units 1
Listing Agency: PROMISE REALTY LLC
Listed By: Ji Y. Hong
Source: Elliman
Added: Jul 9 Changed: Aug 8 Last Checked: Aug 8 at 10:19AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of PROMISE REALTY LLC

Investment Insights

Based on property information with market context.

This office condominium is located within the International Gem Tower, a modern, professionally designed building. The property benefits from 24/7 security and state-of-the-art building systems, providing a controlled, business-ready environment for office operations.

The offering is at 50 W 47th St, New York, NY 10036 in the Diamond District, an area described in the remarks as a luxury jewelry hub. WalkScore is listed as 100 and transitScore is listed as 100, with bikeScore of 88, indicating strong access to surrounding transit and amenities.

As an office condo within a landmark commercial building, this space is suited for ownership of a dedicated office unit inside a staffed, secure high-rise setting.

Key Highlights

  • Office condominium inside International Gem Tower in NYC’s Diamond District
  • Building year built: 2009
  • 24/7 security for the building

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$28,181
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
2.88%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$563,620 $563.6K
Cap Rate 7%
$402,586 $402.6K
Cap Rate 9%
$313,122 $313.1K
Market Conditions
NOI Build-Up for 900 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$46.3K $51.48/SF
− Vacancy
−$8.8K −$9.73/SF
EGI
$37.6K $41.75/SF
− OpEx
−$9.4K −$10.44/SF
NOI
$28.2K $31.31/SF
Area
New York, NY
Vacancy
18.90%
Lease Rate
$51.48 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$563,620
Cap Rate 7%
$402,586
Cap Rate 9%
$313,122

Alternative Uses

Best Use
Office B
$402.6K
$352.3K – $469.7K (±1% cap)
NOI $28,181 @ 7.0% cap · market cap 2.88%
Second Best
no second resolved use
Theoretical Best
Specialty Retail
$2.24M
$1.96M – $2.61M (±1% cap)
NOI $156,816 @ 7.0% cap · market cap 16.00%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Kuperman Bros. Diamonds ... Industrial Manufacturer Colorline Inc Big Box & Wholesale Store Services Co Part Construction Company Services Co Beacon Construction Company Youngsoo Oh, PT Physician

Suggested Use

Top Pick Pet Grooming Service Nursing Home Buffet Locksmith (Bike/Boat/Book/etc) Store Parking Lot & Garage

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

90,344
Businesses Nearby

Demographics for 10036, NY

33,868
Population
22,473
Households
1.5
Avg Household Size
37
Median Age
69%
College-Educated
93%
High-School Grad
0.4 sq mi
ZIP Area
84,670
Density / Sq Mi
$100,225
Median Household Income
$86,122
Median Earnings
$2,301
Median Rent
$988,000
Median Home Value

Market

Vacancy Rate% for Office in Northeast region

13.1% 2019
15.4% 2020
17.6% 2021
19.1% 2022
20.2% 2023
20.9% 2024
19.9% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Office units - Office condominium inside International Gem Tower with 24/7 security and building systems designed for professional use.
Where is this office units located?
The property is located at 50 W 47th St 10U New York, NY.
What is the asking price?
The asking price for this property is $980,000.
What are key features of this property?
This property features: Office condominium inside International Gem Tower in NYC’s Diamond District; Building year built: 2009; 24/7 security for the building
More about this property
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