What Alloy Development does

Alloy Development is a Brooklyn, New York-based, vertically integrated real estate development and architecture firm founded in 2005 by Jared Della Valle and Katherine McConvey. The company combines design, construction, development, and brokerage capabilities under one roof, enabling it to act as architect, contractor, developer, and broker on its own projects across Brooklyn and Manhattan. Its portfolio spans adaptive reuse loft conversions (192 Water Street, 185 Plymouth Street, 168 Plymouth Street), luxury townhouses (DUMBO Townhouses), mid-rise residential (One John Street, LEED Gold), and large-scale mixed-use developments, anchored by The Alloy Block in Downtown Brooklyn — which includes 505 State Street (NYC's first all-electric skyscraper, completed Spring 2024), 489 State Street (NYC's first Passive House public schools), and the planned One Third Avenue (62-story, 725-foot passive house tower). Cumulative project value exceeds $1.6 billion since 2006.

Alloy's core technology is sustainable building design, with proprietary expertise in Passive House standards (highly insulated envelopes, thermal-bridge-free construction, heat recovery ventilation) and all-electric building systems (elimination of gas service, induction cooking, heat pump dryers). The firm delivers energy-efficient buildings that meet or exceed NYC's increasingly stringent Local Law 97 carbon limits, positioning it ahead of regulatory curves. Beyond residential and commercial product, Alloy integrates civic infrastructure — public schools built under NYC Educational Construction Fund designation, affordable housing co-developed with the Fifth Avenue Committee, cultural space (BRIC artists, Brooklyn Children's Museum SPARK annex), and community amenities — into its mixed-use projects.

The business model combines multiple revenue streams: condominium and townhouse sales (one-time, project-based), recurring rental income from stabilized residential buildings such as the 441-unit 505 State Street, development management and advisory fees, and in-house brokerage commissions. Customer segments are diversified across affluent residential buyers, affordable-housing applicants (with waitlists of 3,000+ for some projects), NYC Department of Education and ECF for institutional build-outs, retail tenants (e.g., Yafa Cafe), and institutional capital partners (Kayne Anderson, The Vistria Group). Go-to-market combines direct sales via project-specific websites, deep community engagement (visioning workshops, public meetings, the A Better Brooklyn Fund managed by the Brooklyn Community Foundation), and a growing MWBE contracting program (43% participation, $115M to underrepresented businesses at Alloy Block Phase 1). The firm is privately held with 1-10 employees listed at the corporate level, supported by an interdisciplinary team of ~22 named professionals.

Name

Alloy Development

Legal name

Alloy Development LLC

Website

https://alloyllc.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

1–10 employees

Short description

Alloy Development is a Brooklyn-based, vertically integrated architecture and real estate development firm building sustainable mixed-use, residential, and civic projects across NYC, including NYC's first all-electric skyscraper and first Passive House schools.

Ownership category

akta.pro rank

Product category

Mixed-Use Real Estate Development

NAICS

Architectural Services (541310)

akta.pro primary industry

Residential Affordable Housing Development & Construction (IMAFABAI)

akta.pro secondary industry

Office & Corporate Building Construction (IMAFACAA)

Keywords

• Sustainable real estate development
• Passive house construction
• All-electric buildings
• Mixed-use development
• Adaptive reuse architecture

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Property Sales: Development and sale of residential condominiums and townhouses. Revenue realized upon sale and closing. Projects include Dumbo Townhouses (sold 2013), 192 Water Street (sold 2012), 185 Plymouth Street (sold 2013), 459 West 18th Street (sold 2010).
2. Rental Income: Rental revenue from completed residential buildings. 505 State Street houses 441 rental apartments (45 affordable units) with retail spaces along Flatbush Avenue. Ongoing rental income from residential and commercial tenants.
3. Development Management Fees: Fees for managing the full lifecycle of real estate development projects from concept and site acquisition through project delivery and stabilization. Development manager oversees acquisition, capitalization, design, construction and disposition.
4. Brokerage Services: Alloy acts as architect, contractor, developer and broker for its own projects, capturing brokerage commissions on property sales.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels6 records

Core offering

Alloy Development is a multidisciplinary, design-focused real estate development and advisory firm that operates as a vertically integrated architect, contractor, developer, and broker. It conceives, designs, builds, finances, and sells or leases mixed-use residential, commercial, educational, and community developments—primarily in Brooklyn—with industry-leading sustainability standards including Passive House, all-electric, and LEED Gold construction. The firm's revenue derives from property sales, rental income, development management fees, and brokerage commissions on its own portfolio.

Product overview

Alloy Development is a New York-based real estate development company that develops residential, commercial, and educational properties across Brooklyn and Manhattan. Their portfolio includes high-rise towers (505 State Street, One Third Avenue), adaptive reuse projects (168 Plymouth Street, 192 Water Street, 185 Plymouth Street), townhouses, affordable housing (Glenmore Gardens), and public schools (KGIA, PS456). The company positions itself as a sustainable developer, creating NYC's first all-electric skyscraper and first Passive House schools. Their major projects include The Alloy Block (Downtown Brooklyn), waterfront properties in DUMBO, and various mixed-use developments.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 43% of construction value at Phase 1 Tower and 35% at Phase 1 Schools awarded to MWBE businesses ($115 million)
• +4 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles5 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered core and key.

• GFB DevelopmentcoreStrategic or Co-development Partner · 1 July 2024Joint-venture partnership with GFB Development (founded by NBA player Taj Gibson) for 240 Nassau Street mixed-use development in Fort Greene. Project includes new public school, community center, cultural center, retail, and mixed-income housing. GFB Development founded in 2024 by Taj Gibson, Tameek Floyd, and Malik Brown.
• Madison Square Boys & Girls ClubkeyStrategic or Co-development Partner · 1 January 2024Partnership to restore after-school services at Navy Yard Clubhouse at 240 Nassau Street. Madison is one of NYC's longest-serving providers of after-school programming and youth development services in underserved communities.
• Solar OnekeyStrategic or Co-development Partner · 1 October 2022Partnership with Solar One to issue RFP seeking solar development community partnerships for development of new solar capacity in NYC to supply 100% carbon-free electricity to 505 State Street all-electric skyscraper.
• Brooklyn Community FoundationkeyStrategic or Co-development Partner · 1 December 2020A Better Brooklyn Fund - donor-advised philanthropic fund managed by Brooklyn Community Foundation. Establishes new model for equitable development supporting neighboring communities. Seeded at 168 Plymouth Street with residents contributing from building operating surpluses.
• Fifth Avenue CommitteecoreStrategic or Co-development Partner · 1 March 2018Partnership with Fifth Avenue Committee (FAC) to develop and co-own 200 units of permanently affordable housing at 80 Flatbush project. FAC will oversee marketing, leasing, and operation of affordable housing.
• Educational Construction Fund (ECF)coreStrategic or Co-development Partner · 1 April 2017NYC Educational Construction Fund designated Alloy to build two new public schools in Downtown Brooklyn as part of mixed-use development. Includes new elementary school and new home for Khalil Gibran International Academy. Partnership continued for 240 Nassau Street project.
• Monadnock ConstructioncoreStrategic or Co-development PartnerPartnership with Monadnock Construction for One John Street waterfront development in DUMBO. Won public RFP held by Brooklyn Bridge Park together. Also collaborated on Brooklyn Bridge Park Pier 6 proposal.
• UAG (General Contractor)coreImplementation/ SI/ Consulting PartnerUAG team on site for foundation preparations and construction of Alloy Block projects. Over 43% of construction value at Phase 1 Tower awarded to MWBE businesses through collaboration of UAG and Hunter Roberts.
• Architecture Research OfficekeyTechnology or IntegrationDesign architect for 489 State Street passive house schools. Also collaborated on Glenmore Gardens affordable housing project.
• Hunter RobertskeyImplementation/ SI/ Consulting PartnerConstruction partner for Alloy Block Phase 1 projects. Collaboration with UAG resulted in unprecedented 43% MWBE participation ($115 million to historically underrepresented businesses).
• Ishmael Leyva (Architect of Record)keyTechnology or IntegrationArchitect of record for 489 State Street passive house schools.
• Future Green StudiokeyTechnology or IntegrationLandscape architecture firm designing new public plaza at The Alloy Block in Downtown Brooklyn. Expected delivery in 2028.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Two Trees Management: Brooklyn-based real estate developer known for mixed-use projects including Domino Sugar Refinery and Industry City. Most directly comparable to Alloy in terms of Brooklyn-focused, design-driven, mixed-use development with community amenities and sustainability emphasis.
• Taconic Investment Partners: NYC-focused mixed-use developer with significant downtown Manhattan and Brooklyn portfolio. Comparable in scale of individual projects, mixed-income housing strategy, and institutional capital partnership model.
• BRP Companies: NYC affordable and mixed-income housing developer with strong NYC HPD and ECF relationships. Comparable in mission-driven affordable housing development model and government partnership pipeline similar to Alloy's ECF designation.

Broad incumbents

• The Durst Organization: Family-owned NYC real estate developer with portfolio including One Bryant Park (Bank of America Tower) and Bjarke Ingels-designed W57. Comparable as a long-tenured NYC developer-operator with sustainability leadership pedigree, though at substantially larger scale.
• Lendlease: Global real estate developer with major NYC presence and ambitious sustainability commitments (targeting net-zero). Comparable to Alloy in targeting Passive House standards, sustainable construction, and large mixed-use urban developments.
• Tishman Speyer: Global real estate developer with NYC landmark projects (Rockefeller Center, Hudson Yards). Comparable as a NYC mixed-use developer pursuing sustainability targets, though operating at substantially larger scale and global footprint.
• Forest City Realty Trust: Now part of Brookfield Properties, this NYC-focused developer built Pacific Park (formerly Atlantic Yards) including Barclays Center. Comparable as a large-scale NYC mixed-use developer with public-private partnership model, though at much greater scale than Alloy.

Others

• Monadnock Construction: NYC general contractor and developer that partnered with Alloy on One John Street DUMBO waterfront project and Brooklyn Bridge Park Pier 6 proposal. Comparable as a Brooklyn-focused builder-developer partnership entity working on similar adaptive reuse and mixed-use projects.
• Mega Contracting: NYC general contractor specializing in mixed-use, multifamily, and commercial construction with high MWBE participation. Comparable as an ecosystem partner and construction execution resource for NYC developers like Alloy pursuing MWBE mandates.
• Fifth Avenue Committee: Brooklyn-based nonprofit housing developer that co-owns 200 units of permanently affordable housing with Alloy at 80 Flatbush. Comparable as an affordable housing partner and co-development ecosystem participant for NYC mixed-income developments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 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 Alloy Development