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Waterfront New Construction Duplex
For Sale
$1,880,000

1 Opal Ct, Brooklyn, NY 11229

Detached two-family residence with private boating access, panoramic water views, separate utilities, and energy-efficient systems.

Property Size3,380 SF
Lot Size0.11 Acres
Days on Market67

Property Features for 1 Opal Ct

General Information

Standard status Active
Size 3,380 SF
Lot size 0.11 Acres
Property subtype Multi Family

Site & Location

Highway Access Yes
Public Transit Yes
Utilities to Site Yes

Additional Details

Multifamily Units 2

Building Details

Building Size 3,380 SF
Year Built 2026
Buildings 1
Stories 3
Listing Agency: RE/MAX Edge
Listed By: Michelle J. Zhang · License #MZ4172
Source: Elliman
Added: Jul 5 Changed: Aug 29 Last Checked: Sep 8 at 8:30AM

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 RE/MAX Edge

Investment Insights

Based on property information with market context.

Completed in 2026, this detached duplex pairs two three-bedroom residences with contemporary construction and direct waterfront exposure. The three-story layout includes a high-ceiling lower level with utility space, a three-bedroom second-floor home with a waterfront balcony, designer kitchen, primary suite, walk-in closet, spa-style bath, and laundry area, plus an upper residence with two full baths, a second laundry area, and a large L-shaped balcony. A detached two-car garage, private driveway, additional front parking, solar-panel roof, central HVAC, and high-efficiency mechanical systems complete the property.

The residence occupies a 4,622 sq. ft. lot and includes approximately 1,000 feet of private waterfront with existing dock pilings for a future private dock. The included boat adds to the property’s boating function. Separate utilities comprise 2 gas and 3 electric meters. The property is at 1 Opal Ct, Brooklyn, NY 11229, with access to Manhattan, major highways, shopping, and dining. Walk Score is 85, Transit Score is 79, and bikeScore is 71.

Key Highlights

  • Duplex completed in 2026 with two three‑bedroom residences
  • Approximately 1,000 feet of private waterfront with existing dock pilings
  • Boat included with sale; future private dock can be built

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
$118,373
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
6.30%
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%
$2,367,460 $2.4M
Cap Rate 7%
$1,691,043 $1.7M
Cap Rate 9%
$1,315,256 $1.3M
Market Conditions
NOI Build-Up for 3,380 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
$172.4K $51.00/SF
− Vacancy
−$3.3K −$0.97/SF
EGI
$169.1K $50.03/SF
− OpEx
−$50.7K −$15.01/SF
NOI
$118.4K $35.02/SF
Area
Brooklyn, NY
Vacancy
1.90%
Lease Rate
$51.00 /SF/Yr
Expense Ratio
30.00%
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%
$2,367,460
Cap Rate 7%
$1,691,043
Cap Rate 9%
$1,315,256

Alternative Uses

Best Use
Multifamily LT 5
$1.69M
$1.48M – $1.97M (±1% cap)
NOI $118,373 @ 7.0% cap · market cap 6.30%
Second Best
Apartment 5plus
$1.47M
$1.29M – $1.72M (±1% cap)
NOI $103,188 @ 7.0% cap · market cap 5.49%
Theoretical Best
Specialty Retail
$2.80M
$2.45M – $3.27M (±1% cap)
NOI $195,905 @ 7.0% cap · market cap 10.42%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Real Estate Agency Law Firm Parking Lot & Garage Spa & Massage Center Hair Salon Restaurant

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

Lease Details

2
Residential units
Yes
Highway access
Yes
Utilities to site

Location Intelligence

Trade Area within ½ mile

523
Businesses Nearby

Demographics for 11229, NY

83,669
Population
33,353
Households
2.5
Avg Household Size
40
Median Age
41%
College-Educated
88%
High-School Grad
2.0 sq mi
ZIP Area
41,835
Density / Sq Mi
$72,556
Median Household Income
$52,948
Median Earnings
$1,666
Median Rent
$812,200
Median Home Value

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Detached two-family residence with private boating access, panoramic water views, separate utilities, and energy-efficient systems.
Where is this duplex located?
The property is located at 1 Opal Ct Brooklyn, NY.
What is the asking price?
The asking price for this property is $1,880,000.
What are key features of this property?
This property features: Duplex completed in 2026 with two three‑bedroom residences; Approximately 1,000 feet of private waterfront with existing dock pilings; Boat included with sale; future private dock can be built
More about this property
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