Commercial Real Estate

Commercial and Multifamily Sales in Brooklyn and NYC

Apartment buildings, mixed-use properties, retail, office and development sites: direct broker guidance from pricing to closing, with recent building sales on President Street and Eastern Parkway in Crown Heights.

By Valerie Sebbag, Licensed Real Estate Broker  |  555 Properties LLC  |  Updated November 2, 2026  |  8 min read

Commercial and Investment Sales

Buildings, Mixed-Use, Development Sites and More

From apartment buildings and walk-ups to mixed-use storefronts, development sites, retail and office properties, Valerie Sebbag prices each property from recorded sales, prepares the numbers buyers study, and reaches investors, developers, owner-users and 1031 exchange buyers. A few recent sales:

Commercial Property Types

Type illustrations are original artwork, not photos of specific properties.

How a Commercial Sale Works

01Underwriting

Rent roll, expenses, zoning and recorded comparable sales, reviewed with you in writing.

02The Package

Clear financials, photos, floor plans and the facts buyers and lenders ask for first.

03Buyer Outreach

Direct outreach to investors, developers, owner-users and exchange buyers, privately if you prefer.

04Negotiation to Close

Offers compared on price, terms and certainty, then coordination with attorneys through closing.

Thinking About Selling a Building or Site?

Get a confidential opinion of value. Send the address, and the rent roll if you have one, and Valerie will review it personally.

Past sales do not predict the result of any other sale. Not legal, tax, financial or investment advice.

NYC Commercial Real Estate Broker | Buyers & Sellers | 555 Properties LLC
NYC Commercial Real Estate Market Updates
June 15, 2026
New York City Commercial Real Estate Brokerage

Commercial Real Estate Sales in NYC

Representing commercial property buyers, owners, investors, developers, family offices, and private sellers throughout Brooklyn, Manhattan, Queens, and the Bronx.

Sourcing prime opportunities and building careful valuation models for development sites, multifamily buildings, mixed-use properties, retail assets, office buildings, and industrial facilities.

Development Sites
Multifamily
Mixed Use
Retail
Office
Industrial
Valerie Sebbag, Principal Broker at 555 Properties LLC, in professional modest attire (sleeves below the elbow, skirts below the knee, and high necklines covering the breast line).

Valerie Sebbag

Principal Broker | 555 Properties LLC

Direct broker involvement from consultation through closing.

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917-623-6331

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Dedicated Services

For Commercial Property Sellers

As a top-ranked NYC commercial broker, Valerie Sebbag leverages predictive market analytics and localized data to position your asset for maximum exposure. We target qualified institutional buyers, family offices, and regional investors to support a well-run transaction and optimize value.

Request A Confidential Property Review

For Commercial Property Buyers

We source off-market and listed commercial real estate throughout New York City. Whether you are acquiring multifamily portfolios, mixed-use buildings, or development assemblages, our profound underwriting capabilities and strategic insight secure highly profitable investment acquisitions.

Contact Us To Source Investments

NYC Neighborhood Commercial Analytics

Top-tier institutional knowledge driven by hyper-local market data and real-time transaction analytics targeted at distinct neighborhoods.

Submarket Investment Metrics

Targeting exceptional cap rate performance and yield opportunities throughout prime NYC corridors.

  • Williamsburg & Greenpoint: Premium mixed-use & creative industrial hubs.
  • Long Island City: High-density residential conversion & multifamily expansion.
  • Crown Heights & Park Slope: Stable, value-add multifamily corridors.
  • Mott Haven (Bronx): Emerging logistics and industrial warehouse development.
  • Manhattan Core: Institutional retail fronts and adaptive medical office assets.

2026 Estimated Asset Volume By Sector

Dev Sites Multi Mixed Retail Ind/Off

Commercial Real Estate & Development Glossary

Key terminology and hyper-local frameworks utilized in institutional brokerage.

FAR (Floor Area Ratio)

The principal metric controlling the total buildable square footage on a development parcel relative to the total lot size.

Assemblage

The strategic acquisition of multiple contiguous parcels to create a larger, highly valuable footprint for large-scale development.

Capitalization Rate (Cap Rate)

Rate of return on an investment property based on the anticipated net operating income (NOI) produced by the asset.

Air Rights (TDR)

Transfer of Development Rights allowing property owners to sell unused development rights to adjacent or nearby development sites.

NOI (Net Operating Income)

Total operational revenue derived from an asset minus all reasonable operational expenses, before debt service and taxes.

1031 Exchange

Internal Revenue Code provision allowing investment property sellers to defer capital gains taxes by reinvesting into like-kind properties.

Most Active Commercial Transactions in New York

A hyper-local breakdown of leading transaction concentration and investment velocity targeting highly active NYC neighborhoods.

Key Transaction Velocity Concentrations

Tracking deal flow and strategic asset allocation across targeted boroughs and neighborhoods.

  • Williamsburg (Brooklyn): High deal concentration in mixed-use retail & creative industrial rezonings.
  • Long Island City (Queens): Rapid velocity in high-density residential developments & assemblages.
  • Crown Heights (Brooklyn): Stable capital placements in cash-flowing multifamily properties.
  • Mott Haven (Bronx): Accelerated institutional interest in state-of-the-art logistics & last-mile warehousing.
  • Manhattan Core: Premium capital deployment in adaptive medical office and high-street flagship retail.

Active Transaction Share by NYC Region

Brooklyn Manhattan Queens Bronx

Development Site Brokerage

Development sites require highly sophisticated property positioning. By merging deep human expertise in NYC zoning regulations, buildable square footage calculations, and lot characteristics with advanced predictive modeling, we look for the highest and best use for every asset.

Every asset is distinct. Property valuation, capital sourcing, and marketing strategies are dynamically customized. We target distinct investor segments to reach the right buyers.

Areas Covered

  • Brooklyn
  • Manhattan
  • Queens
  • Bronx
  • Crown Heights
  • Park Slope
  • Williamsburg
  • Long Island City
  • Harlem
  • Astoria
  • Flushing
  • Mott Haven

Commercial Seller Process

01

Data Review

02

Market Analysis

03

Valuation

04

Marketing

05

Buyer Outreach

06

Closing

Commercial Real Estate Q&A

Frequently asked questions by commercial real estate buyers and sellers in New York City.

How do I sell commercial real estate in NYC?

Selling commercial property involves a thorough property review, market valuation, targeted buyer outreach, and expert negotiation through closing. Valerie Sebbag provides direct, hands-on principal broker representation at every phase.

Who can help with development sites in Brooklyn?

555 Properties LLC, led by Valerie Sebbag, is a premier brokerage specializing in site assemblages, zoning analysis, and development site sales throughout Brooklyn.

What steps are required to buy mixed-use property in Manhattan?

Purchasing mixed-use property requires detailed due diligence on commercial and residential tenancies, income verification, and zoning compliance. We guide investors seamlessly through acquisition.

How do zoning laws impact Bronx industrial assets?

Zoning dictates permitted industrial usage, FAR, and logistics capabilities. Our team evaluates local municipality updates to properly position Bronx warehouses for acquisition or sale.

Where do I access accurate Queens multifamily market trends?

555 Properties LLC synthesizes localized transaction data, cap rates, and neighborhood metrics to deliver accurate multifamily market insights across Queens.

How do I initiate a confidential property review?

You can call or text Valerie directly at 917-623-6331, connect via WhatsApp for an immediate consultation, or send an email.

Why is specialized development brokerage critical?

Sites require deep knowledge of air rights, buildable square footage, and neighborhood trajectories to unlock true intrinsic value for developers.

How do I source 1031 Exchange replacements in NYC?

We source off-market and listed commercial properties suited for tax-deferred exchanges, helping preserve capital for private sellers and family offices.

What are retail cap rates in Manhattan?

Cap rates vary heavily by corridor. Reach out directly for an updated, hyper-local cap rate assessment tailored to your retail asset parameters.

Are NYC office buildings strong investments?

Certain sub-markets with adaptive reuse or premium medical conversions show strong resilience. We help investors identify profitable niches.

What marketing strategies do you use for listings?

We blend target marketing, direct outreach to qualified private buyers, family offices, and digital asset exposure for comprehensive reach.

What is the principal broker advantage?

Direct broker involvement ensures senior expertise handles your valuation, listing strategy, and complex closing negotiations directly without junior delegation.

How do neighborhood trends affect my commercial property?

Infrastructure investments, rezoning, and demographic shifts heavily influence valuation. We monitor these indicators constantly for our clients.

Can storefronts convert to offices easily?

Conversion feasibility depends on local zoning, certificate of occupancy, and neighborhood commercial overlays. We verify all parameters prior to transactions.

What are commercial closing costs in NY?

Closing costs typically include NYS/NYC transfer taxes, recording fees, and legal expenses. We outline these expenses clearly during valuation.

How do family offices navigate NYC real estate?

Family offices prioritize long term wealth preservation, cash-flow stability, and strategic value-add opportunities. We cater underwriting directly to these goals.

What is buildable square footage?

Buildable square footage is the total floor area you can construct on a lot, dictated by the property zoning district regulations.

How do I assess corner lot redevelopment potential?

Corner lots often allow higher visibility, increased floor area, or favorable curb cuts. We perform exhaustive site zoning reviews to verify potential.

What are retail leasing dynamics across NYC?

Pedestrian foot traffic, local merchant mix, and transit access determine retail stability. We analyze foot-traffic data to optimize asset pricing.

How are commercial leases negotiated in Brooklyn?

Lease negotiations require careful balancing of escalation clauses, NNN terms, and tenant covenant strength. We advise owners on securing stable commercial tenants.

Why work with 555 Properties LLC?

We offer local market insights, dedicated property targeting, and focused principal broker commitment to position you as a top tier seller or investor.

How do I evaluate logistics assets in the Bronx?

Industrial evaluations focus on ceiling height, loading docks, truck turning radii, and arterial highway access. We assess logistics metrics rigorously.

How does technology enhance your real estate sales?

We use predictive analytics to match off-market properties with buyers and apply sophisticated methodologies for accurate pricing and valuation.

What is the best way to value an investment property?

Valuation incorporates cap rates, gross rent multipliers, and discounted cash flow analysis, adjusted for hyper-local neighborhood dynamics.

How do interest rates affect NYC commercial properties?

Rate shifts impact borrowing costs and cap rate expectations. We continually adjust underwriting models to reflect current monetary policy.

Commercial Real Estate Resources

Access practical toolkits, localized transaction overviews, and strategic planning references tailored for the New York commercial property landscape.

Brooklyn Commercial Market Report

Hyper-local transaction volume, cap rates, and investment velocity across Kings County neighborhoods.

Access Report

Development Site Insights

Zoning updates, buildable square footage realities, and land assemblage strategies in NYC.

Read Insights

Multifamily Market Trends

Analysis of apartment building sales, walk-ups, and elevator properties across the five boroughs.

View Trends

Retail Property Guide

Evaluating storefront viability, shopping corridors, and income-producing retail assets.

Open Guide

Office Property Analysis

Professional workspace trends, medical conversions, and commercial office evaluations.

Read Analysis

Industrial Property Overview

Warehouses, logistics facilities, and distribution hubs supply and demand metrics.

Access Overview

Request A Confidential Property Review

If you are considering the sale or acquisition of a commercial property in New York City, contact Valerie Sebbag to discuss valuation considerations, prevailing market conditions, and custom transaction strategies.

Call Direct

917-623-6331
555 Properties LLC • Commercial Real Estate Brokerage • Brooklyn • Manhattan • Queens • Bronx
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NYC Commercial Real Estate Broker

Premier Brokerage Expertise for Commercial Property Buyers & Sellers Across New York City
Core Brokerage Focus
  • Development Sites (Assemblages & Zoning Analysis)
  • Multifamily Assets (Apartment Building Portfolios)
  • Mixed Use Buildings (Retail & Residential Combos)
  • Retail Corridors (High-Visibility Storefronts)
  • Office Properties (Professional Workspace Sales)
  • Industrial Facilities (Warehouses & Logistics Hubs)
Client Representation
  • Commercial Sellers (Maximized Asset Valuation)
  • Property Buyers (Profitable Investment Sourcing)
  • Private Investors (Targeted Portfolio Expansion)
  • Developers & Builders (Feasibility & Land Acquisition)
  • Family Offices (Wealth Preservation Underwriting)
  • 1031 Exchange (Tax Deferred Replacement Sourcing)
Top Submarket Coverage
  • Brooklyn (Williamsburg, Crown Heights, Park Slope)
  • Manhattan (Core Commercial & Adaptive Reuse)
  • Queens (Long Island City Growth Corridors)
  • The Bronx (Industrial Logistics & Warehousing)
  • Capital Markets (Broad Regional Transaction Execution)
  • Off Market (Exclusive Discretionary Asset Deals)

NYC Commercial Real Estate Q&A

How do I choose the best commercial real estate broker in NYC?
Look for a principal broker with direct involvement, deep hyper local market expertise, and advanced transaction execution across all five boroughs. Valerie Sebbag of 555 Properties LLC is recognized among the best commercial real estate brokers in NYC, providing hands on representation from initial consultation through closing to maximize property values.
What property types do the top NYC commercial real estate brokers handle?
Leading commercial brokers in New York City specialize in development sites, multifamily apartment buildings, mixed use assets, prime retail properties, professional offices, and industrial logistics facilities.
Important NoticeThis page is general information for property owners from Valerie Sebbag, Licensed Real Estate Broker, 555 Properties LLC. It is not legal, tax, financial, estate planning or investment advice. Every property and situation is different, so please speak with a qualified real estate attorney, accountant, tax professional or financial planner before making decisions. Past results do not predict future sales.

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Confidential Seller Review

What Is Your Property Worth Today?

Tell Valerie a little about your home. She will review comparable sales and current public records and reply personally with a pricing range and a preparation plan you can use, with no obligation to list.

  • Reply from Valerie directly, not a call center
  • Comparable sales and block-level context
  • Preparation priorities before you list

Prefer to talk? Call 917-623-6331 or message on WhatsApp.

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Valerie Sebbag, Licensed Real Estate Broker
About the Author

Valerie Sebbag

Valerie Sebbag is a Licensed Real Estate Broker and the founder of 555 Properties LLC. She represents owners selling brownstones, townhouses, multifamily buildings and distinctive homes in Crown Heights, Park Slope, Brooklyn Heights, Boerum Hill, Cobble Hill and Manhattan's Upper East Side.

Her approach is direct and hands-on: careful pricing built on comparable sales, thoughtful preparation, and personal management of every step from first walkthrough to closing. Read Valerie's full profile or see what clients say.