Tankhouse

What Tankhouse does

Tankhouse is a Brooklyn-based real estate development firm founded in 2013 by Sam Alison-Mayne and Sebastian Mendez. The company develops residential and mixed-use properties in Brooklyn, with completed projects at 450 Warren Street (Gowanus, 2022, 18 homes), 9 Chapel Street (Downtown Brooklyn, 2024, 27 homes), and 144 Vanderbilt Avenue (Fort Greene, 2025, 26 homes), plus 450 Union Street (Gowanus Canal, 158 homes) under construction for 2026 completion - a portfolio totaling roughly 229 residential units and approximately 398,000 SF of development footprint. Tankhouse differentiates on architectural innovation rather than unit count, partnering principally with SO-IL architecture on design and engaging specialty collaborators such as Gubi for interiors; the 450 Warren project won the 2024 ArchDaily Building of the Year and the 2023 Fast Company Innovation by Design award. Revenue is generated through direct sale of condominium units and rental of apartments via project-specific websites and inquiry channels, with no third-party broker network and no external institutional funding disclosed. The firm operates with 1-10 employees, no parent company, and a private ownership structure held by the two co-founders.

Name

Tankhouse

Legal name

Tankhouse

Website

https://tankhouse.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

Tankhouse is a Brooklyn-based real estate developer founded in 2013 that designs, develops, and sells or rents design-forward residential and mixed-use properties in Brooklyn for individual buyers and tenants.

Ownership category

akta.pro rank

Headquarters

HQ city

Brooklyn

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Others

Revenue model

1. Residential Property Development: Tankhouse develops residential properties in Brooklyn, NY, generating revenue through the sale of condominium units and rental of apartment units. Their portfolio includes completed projects (450 Warren St, 9 Chapel St, 144 Vanderbilt Ave) and projects under construction (450 Union St).

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Tankhouse is a Brooklyn-based residential real estate development firm that develops, constructs, and sells or rents design-forward condominium and rental housing units in Brooklyn, New York. Its offerings consist of distinct ground-up development projects — 450 Warren St, 9 Chapel St, 144 Vanderbilt Ave, and 450 Union St — each delivering a limited number of architecturally innovative homes with features such as front porches, multiple exposures, cross-ventilation, and shared courtyards.

Product overview

Tankhouse is a Brooklyn-based real estate development firm that develops residential and mixed-use properties in New York City. The company operates four main development projects: 450 Warren St (completed 2022, residential & retail), 9 Chapel St (completed 2024, residential), 144 Vanderbilt Ave (completed 2025, residential & retail), and 450 Union St (under construction, completion 2026, residential, retail, and Gowanus Mix). Rather than a unified software product or platform, Tankhouse's offerings consist of individual real estate development projects, each with distinct architectural approaches and residential offerings. The company does not offer a software product, platform, or digital services.

Differentiator

Problem solved

Functional benefit

Products and services

• 450 Warren Street A ground-up condominium development in Gowanus, Brooklyn comprising 18 homes arranged around three courtyards, featuring innovative outdoor circulation and shared amenity spaces for design-conscious residential buyers.
• 9 Chapel Street (Nine Chapel) A 14-story residential tower in Downtown Brooklyn delivering 27 through-homes with perforated aluminum facades and front-porch-style terraces, designed with SO-IL and with interiors curated by Gubi.
• 144 Vanderbilt Avenue A Fort Greene, Brooklyn residential development comprising 26 homes across 21 distinct layouts, featuring thoughtful massing and design-forward detailing for residential buyers.
• 450 Union Street Tankhouse's first rental project and largest development to date, comprising 158 rental homes along the Gowanus Canal in Brooklyn with residential, retail, and Gowanus Mix program elements.

Quantifiable outcome

• 450 Warren received 2024 ArchDaily Building of the Year award
• +1 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core and minor.

• SO-ILcoreStrategic or Co-development PartnerSO-IL is the primary architectural partner for Tankhouse's major projects including 450 Warren St, 9 Chapel St, and 450 Union St. SO-IL brings innovative architectural vision to the partnership, designing distinctive buildings with unique features such as front porches, perforated metal facades, and experimental circulation systems.
• GubiminorStrategic or Co-development PartnerGubi curated interiors for the 9 Chapel project in Brooklyn, providing furniture and design collaboration for the residential tower's common areas and unit interiors.
• EthandeclerkminorStrategic or Co-development PartnerRenderings studio that created visual renderings for the 450 Union St project, contributing to the project's marketing and pre-sales materials.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Two Trees Management: Brooklyn-headquartered residential and mixed-use real estate developer behind major projects including Industry City, Barclays Center-area developments, and Domino Sugar. Most direct geographic peer to Tankhouse with overlapping Brooklyn submarket focus and similar mixed-use development model.
• Naftali Group: NYC-based luxury residential developer known for design-forward condominium projects such as 250 West 81st Street and The Benson. Comparable to Tankhouse in focusing on design-differentiated for-sale residential product in NYC.
• Alchemy Properties: NYC residential developer specializing in boutique design-forward condominium and townhouse projects. Comparable to Tankhouse in targeting design-conscious buyers in transitional/transitional-fancy Brooklyn and Manhattan neighborhoods.
• Adam America Real Estate: NYC-focused ground-up residential developer known for architecturally distinctive multifamily projects in Brooklyn and Manhattan. Closely comparable to Tankhouse in product type, scale, and design philosophy.
• Charney Construction & Development: NYC-based developer behind design-conscious residential towers like 200 East 83rd Street and Maverick. Directly comparable for design-led NYC for-sale multifamily development.
• Douglaston Development: NYC mixed-use and residential developer active across Brooklyn and Queens. Comparable in mixed-use development format including ground-floor retail components that Tankhouse incorporates at 450 Union.
• L+M Development Partners: NYC-based residential developer with deep portfolio across affordable, mixed-income, and market-rate multifamily housing. Comparable scale to Tankhouse's 450 Union rental project and similar Brooklyn footprint including Gowanus-area work.
• The Brodsky Organization: Long-standing NYC residential and commercial real estate developer with major Brooklyn residential portfolio. Comparable as a Brooklyn-active residential developer with multi-decade operational track record.
• Cape Advisors: NYC residential developer focused on ground-up condominium projects in Brooklyn and Manhattan. Comparable scale and product type to Tankhouse's for-sale residential developments.

Broad incumbents

• Toll Brothers City Living: Nationally dominant homebuilder's urban division developing for-sale residential in NYC including Brooklyn projects at scale. Comparable as a large NYC condo developer though with much broader geographic and product breadth than Tankhouse.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tankhouse
• Instagraminstagram.com/ninechapel
• Xx.com/tankhouse_llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Tankhouse