Sustainable

Name

Sustainable

Legal name

Passive House 43 Architecture Ltd

Website

https://sustainable.to

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Sustainable Architecture Services

NAICS

Architectural Services (54131), Environmental Consulting Services (541620)

akta.pro primary industry

Residential Green / High-Performance Home Construction (Net-Zero, Passive House) (IMAFABAH)

akta.pro secondary industries

Whole-Home Interior Renovation (Non-Structural) (HSAPAEAC), Residential Affordable Housing Development & Construction (IMAFABAI)

Keywords

• Sustainable architecture services
• Passive house design
• Green building consulting
• Residential design services
• Community housing design

Headquarters

HQ city

Toronto

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Architecture and Design Services: Professional architecture and design services for sustainable buildings including new construction, renovations, retrofits, and community housing projects. Services span from initial discovery and feasibility through schematic design, design development, construction documents, and construction administration.

Pricing tiers

Go-to-market motion3 records

Distribution channels2 records

Marketing channels6 records

Core offering

Sustainable is a Toronto-based architecture and design firm that delivers sustainable, carbon-conscious building design services, specializing in Passive House methodology for residential, community housing, and organizational facilities. The firm provides end-to-end architectural services spanning discovery, feasibility, schematic design, construction documents, and construction administration. Core offerings include Passive House design, adaptive re-use, universal design, sustainable materials consulting, and community engagement, applied to single-family homes, multi-unit housing, and institutional buildings.

Product overview

Sustainable is an architecture and design collaborative offering a unified suite of architectural services centered on sustainable, carbon-conscious design. The company provides Passive House Design as its core methodology, complemented by Adaptive Re-Use, Universal Design, Sustainable Building Materials Consulting, Community Engagement, and Durability/Resilience services. Their service portfolio spans three main categories: Home for your Family (single-family residential), Housing for your Community (multi-unit and affordable housing), and A Place for your Organization (commercial/institutional). These services are delivered through both Passive Sustainable Design strategies (utilizing free natural energy) and Active Sustainable Design systems (purchased energy solutions). Notable portfolio projects include the Hunter House (off-grid straw bale home), Century Home Retrofit (gas-free renovation), and Friends of Ruby Home (community housing). The company also offers a free online Backyard Home Eligibility Assessment tool. Sustainable is a division of Passive House 43 Architecture Ltd.

Differentiator

Problem solved

Functional benefit

Products and services

• Passive House Design Services A comprehensive architectural design approach following five Passive House principles (high-performance insulation, high-performance windows, airtight construction, heat/energy recovery ventilation, and thermal bridge-free design) to achieve up to 90% energy reduction for heating and cooling. Applicable to individual houses, multi-unit housing, and organizational buildings.
• Adaptive Re-Use Design Architectural design service focused on changing the use of existing buildings to meet new purposes, avoiding unnecessary upfront (embodied) carbon by maximizing existing structures rather than sending materials to landfill.
• Universal Design Services Design and composition of environments so they can be accessed, understood, and used by all people regardless of age, size, ability, or disability.
• Sustainable Building Materials Consulting Consulting on materials that reduce carbon footprint—both upfront (embodied) carbon and operational carbon—using nature-made materials that emit less carbon upfront and create healthier environments.
• Home for your Family Architectural design services for single-family homes including backyard homes, laneway suites, renovations for aging in place, and sustainable dwelling units. Targeted at individual families seeking sustainable housing.
• Housing for your Community Community housing design services including co-housing, emergency shelters, affordable rentals, and transitional housing. Targeted at community-focused housing projects and nonprofit organizations.
• A Place for your Organization Design services for socially and environmentally-focused organizations to reduce carbon footprint, enhance functionality, and increase accessibility of their facilities. Targeted at nonprofits and community organizations.
• Free Online Backyard Home Eligibility Assessment Free online tool to assess Toronto property eligibility for backyard homes or laneway suites, qualifying prospects before consultation.

Quantifiable outcome

• Passive House projects achieve up to 90% energy reduction for heating and cooling
• +3 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Collaborative ArchitectureminorStrategic or Co-development PartnerFirst, Sustainable joined with Collaborative Architecture firm, expanding capabilities and design approach through the partnership.
• Passive House 43 Architecture LtdcoreStrategic or Co-development PartnerSustainable joined with Passive House 43 Architecture Ltd, another local architecture firm with deep roots in collaboration and sustainability and unwavering commitment to providing Passive House projects. This union deepens Sustainable's proven abilities to deliver beautiful, comfortable, energy efficient, and carbon neutral projects. Sustainable is now a division of Passive House 43 Architecture Ltd.

Scale indicators4 records

Recent moves3 records

Expansion highlights2 records

Broad incumbents

• Perkins&Will: Global architecture firm with a major sustainability practice including net-zero, Passive House, and living building projects; overlaps with Sustainable in green building methodology but at much broader scale and portfolio.
• Gensler: Global architecture and design firm with a published sustainability practice across workplace, residential, and community projects—overlaps thematically but operates at far greater scale and breadth than Sustainable.

Direct peers

• Teeple Architects: Toronto-based architecture firm recognized for sustainable institutional, civic, and residential design, including award-winning low-energy buildings—a close peer on geography and sustainability-led approach.
• Patkau Architects: Vancouver-based Canadian architecture firm recognized for design research-driven, low-energy, and sustainable residential and institutional work—an analog for Sustainable's design-led, building-science-rooted practice.
• KPMB Architects: Toronto-based architecture firm with an established sustainable and institutional design portfolio, similarly delivering Canadian residential, civic, and community projects with a focus on long-life, low-impact buildings.
• DIALOG: Toronto-based multidisciplinary architecture, engineering, and urban design firm with a strong sustainable design practice serving Canadian institutional, residential, and community clients—directly comparable geography and service mix to Sustainable.
• BDP Quadrangle: Toronto architecture practice (part of BDP) delivering residential, community, and commercial projects with an emphasis on sustainability and adaptive reuse—directly comparable in city and segment mix.
• Diamond Schmitt Architects: Canadian architecture firm with deep experience in sustainable cultural, residential, and institutional projects, including net-zero and high-performance buildings—comparable scale, geography, and sustainability positioning.
• Morrison Hershfield: Canadian building science and engineering firm with Passive House and high-performance building expertise, frequently collaborating on envelope and energy projects comparable to Sustainable's design portfolio.

Others

• PHIUS (Passive House Institute US): North American certification and training body for Passive House projects; not a competitor but a key ecosystem participant that defines the standards Sustainable designs against and certifies projects through.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Sustainable