What Collaborative Construction Management does

Collaborative Construction Management (CCM) is a privately held, New York City-based construction management firm founded in 1997 by Michael Siciliani, specializing in adaptive reuse — the conversion of obsolete commercial office buildings into residential and other uses. The company pioneered this niche following a 1996 NYC zoning change that enabled residential conversion of older commercial stock, and has since completed more than 43 projects totaling over 14 million square feet and 14,500+ residential units, including landmark conversions such as One Brooklyn Bridge Park, 443 Greenwich Street, 20 Exchange Place, and Pearl House at 160 Water Street. Core service lines are residential conversions, historic preservation, hospitality construction, and commercial interiors, with a current project pipeline that includes the 111 Wall Street conversion (backed by an $867M financing package, the largest single-building office-to-residential conversion loan in US history), 219/235 E. 42nd Street (1,602 units with MetroLoft, projected to be NYC's largest conversion upon 2027 completion), and 77 Water Street.

CCM's core technology is its accumulated domain expertise in adaptive reuse — specialized techniques for threading new residential floors between existing commercial tenants, adding floors to existing structures, facade reskinning, and infrastructure upgrades for occupied buildings — rather than any proprietary software platform. The business model is professional services: project-by-project construction management fees on a direct enterprise sales motion, with the firm serving as the owner's representative from pre-construction through completion. CCM's go-to-market is relationship-driven, relying on long-standing ties with NYC's premier real estate developers (MetroLoft, Silverstein, Vanbarton, Moinian, RAL, InterVest) and a deep network of design professionals, subcontractors, and lenders. The firm operates from a single headquarters at 40 Wall Street with 11-50 employees, suggesting a high-leverage model where a small senior bench manages multiple large, multi-year engagements simultaneously.

Name

Collaborative Construction Management

Legal name

Collaborative Construction Management LLC

Website

https://ccm.nyc

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Collaborative Construction Management (CCM) is a NYC-based construction management firm founded in 1997 that specializes in adaptive reuse, converting obsolete commercial office buildings into residential units for enterprise real estate developers. The firm has completed 43+ projects totaling 14M+ square feet and 14,500+ units across NYC.

Ownership category

akta.pro rank

Product category

Construction Management Services

NAICS

Nonresidential Building Construction (2362), Commercial and Institutional Building Construction (23622)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Renovation, Remodeling & Tenant Improvements (General Contracting) (IMAFAAAE)

akta.pro secondary industry

Office & Corporate Building Construction (IMAFACAA)

Keywords

• Adaptive reuse construction
• Commercial to residential conversion
• Construction management services
• Historic building preservation
• Commercial interiors

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Construction Management Services: CCM provides comprehensive construction management services for adaptive reuse projects, overseeing projects from inception to completion. The company manages design, construction, financial and feasibility analysis, development budgeting, and team coordination.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels2 records

Core offering

Collaborative Construction Management provides construction management services for adaptive reuse projects in New York City, specializing in converting obsolete commercial office buildings into residential units. The firm manages projects from pre-construction through completion, including design coordination, financial and feasibility analysis, development budgeting, structural modifications, facade reskinning, vertical and horizontal enlargements, and infrastructure upgrades. Since 1997, the firm has converted more than 43 commercial properties totaling over 14 million square feet into more than 14,500 residential units.

Product overview

Collaborative Construction Management (CCM) offers construction management services as a single unified offering focused on adaptive reuse projects. Their portfolio includes residential conversions, historic preservation, hospitality construction, and commercial interiors. The company has completed over 43 adaptive reuse projects totaling more than 14 million square feet, converting former commercial properties into more than 14,500 residential units in New York City. Notable projects include 111 Wall Street, 160 Water Street (Pearl House), 55 Broad Street, and the former Pfizer headquarters conversion at 219/235 East 42nd Street.

Differentiator

Problem solved

Functional benefit

Products and services

• Adaptive Reuse Construction Management

Named customers12 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Five partnerships are on record, tiered core and major.

• MetroLoft DevelopmentcoreStrategic or Co-development PartnerLead developer for 219/235 E. 42nd Street (former Pfizer headquarters), the largest conversion in NYC history upon completion in 2027. CCM serves as construction manager for MetroLoft's major conversions.
• SilversteincoreStrategic or Co-development PartnerDevelopment partner for 55 Broad Street luxury rental conversion project (571 units).
• Silverstein/Metro LoftcoreStrategic or Co-development PartnerJoint development partnership for 55 Broad Street conversion (449,000 sf, 571 luxury rental units).
• 7 Hanover Square Development TeammajorStrategic or Co-development PartnerComprehensive infrastructure upgrade and vertical/horizontal enlargement of 990,187 sf commercial building in Financial District.
• RAL CompaniesmajorStrategic or Co-development PartnerDeveloper partner for One Brooklyn Bridge Park (1,050,000 sf, 438 condos) - revolutionary waterfront conversion project.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Lendlease: Global developer and construction manager with NYC residential and large-scale urban redevelopment projects. Comparable on large urban project delivery and developer partnerships; broader and more diversified than CCM.
• Structure Tone: Large national construction manager with a major NYC office and deep experience in commercial interiors, office fit-out, and adaptive reuse. Comparable in service line breadth and urban project mix, but operates as a broad incumbent rather than an adaptive-reuse specialist.
• Gilbane Building Company: Large national construction firm with a strong NYC presence in residential, academic, healthcare, and commercial construction. Comparable in NYC high-rise residential delivery; a former employer of CCM's VP Andy Sosa.
• AECOM Tishman: Top-tier national construction manager with significant NYC high-rise residential and commercial portfolio. Comparable on large-scale urban project delivery; broader and better-capitalized than CCM, with overlapping capability in adaptive reuse.

Direct peers

• Lettire Construction: NYC-based general contractor with deep experience in adaptive reuse, gut renovations, and ground-up residential and commercial projects in the five boroughs. Highly comparable to CCM on NYC-only market focus and renovation-heavy project mix.
• Triton Construction: NYC-based construction firm specializing in complex urban residential, commercial, and adaptive reuse projects across the metropolitan area. Closely comparable in scale, project type, and NYC market focus to CCM.
• Pavarini McGovern: NYC-focused construction manager known for high-rise residential, hospitality, and adaptive reuse projects including landmark conversions. Directly comparable to CCM on large-scale, complex urban conversion work.
• Plaza Construction: NYC-headquartered construction manager with strong presence in luxury high-rise residential, hospitality, and commercial conversion/renovation projects. Comparable to CCM on large-scale NYC residential conversion execution and developer relationships.
• CNY Group: NYC-based construction manager focused on complex urban residential, hotel, and adaptive reuse projects in Manhattan. Comparable in NYC-only market focus and project type, with similar scale to CCM.
• Hunter Roberts Construction Group: NYC-based construction manager with deep portfolio in high-rise residential, mixed-use, and commercial conversion projects. Closely comparable in scale, project type, and NYC market specialization to CCM.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/CCMNewYorkCity
• LinkedInlinkedin.com/company/collaborative-construction-management

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Collaborative Construction Management