ecomo

What ecomo does

ecomo is a Japanese architectural design and construction firm specializing in custom homes built exclusively from natural materials, founded in 1997 and headquartered in Fujisawa, Kanagawa Prefecture. The firm was restructured around natural-material construction in 2003 following the founder's daughter's chemical-sensitivity diagnosis, and now operates a second office in Yokohama Minatomirai. ecomo's core products are bespoke single-family custom homes priced ¥15M–¥40M+, with a semi-custom product line called Eco Module, condominium renovation services, and a real estate brokerage arm. The underlying technical approach relies on a proprietary wall formula combining diatomaceous earth, silica, and carbonized wood chips to regulate humidity and absorb VOCs, supplemented by direct sourcing partnerships with producers such as Yamacho Corporation for Kishu timber and a deployed methodology of 5-person project teams per home covering architecture, construction management, lighting, and color coordination.

The firm generates revenue through three principal streams: custom home construction (the primary revenue engine), condominium renovations, and real estate brokerage commissions. Its go-to-market leans on a Shonan showroom co-located with a Patagonia retail outlet, attracting approximately 50,000 visitors per year, plus ongoing events and a post-sale Owners Club community that retains over 90% of members across 20 years and drives referral-based customer acquisition. ecomo is privately held and bootstrapped, with no disclosed external funding. The company's positioning intersects the LOHAS (Lifestyles of Health and Sustainability) consumer segment, ZEH (Zero Energy House) energy-efficient construction, and the premium natural-materials niche, with a public ZEH target of 30% of projects by 2030 against 11% in 2024.

Name

ecomo

Legal name

株式会社 ecomo 一級建築士事務所

Website

https://ecomo-life.com

Company type

Private

Founded year

2003

Operating status

Operating

Short description

ecomo is a Japanese architectural design and construction firm that builds custom homes exclusively from natural materials, serving individual homeowners in the Greater Tokyo and Kanagawa markets with bespoke residences, renovations, and real estate services. The firm, headquartered in Fujisawa and privately held, operates a Shonan showroom co-located with Patagonia.

Ownership category

akta.pro rank

Product category

Custom Residential Home Construction

akta.pro primary industry

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

Keywords

• Natural material homes
• Custom home design
• Passive design architecture
• Residential renovation services
• Real estate brokerage

Headquarters

HQ city

Fujisawa

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Custom Home Construction (注文住宅の建築): Primary revenue stream — design and construction of bespoke single-family homes using natural materials. Revenue is generated through one-time project fees covering architectural design, structural engineering, interior design, and construction management from land search through handover. Projects typically range from land purchase through custom home completion. The company also offers a semi-custom 'Eco-module' product for faster delivery.
2. Renovation & Reform (リフォーム・リノベーション): Renovation services including full-home renovations, partial remodels, seismic reinforcement, and natural material upgrades. Covers both detached houses and apartments/condominiums. Revenue is one-time project-based.
3. Real Estate (エコモふどうさん): Real estate services including land search support, property sales, and 'zero-chukai' (zero-commission real estate) services. Land search is provided as part of the integrated building service, with separate real estate brokerage for property transactions.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels9 records

Core offering

ecomo is a first-class architect office that designs and constructs custom single-family homes using natural materials (Hokkaido Wakkanai diatomaceous earth, Kishu cedar/cypress structural timber, cellulose fiber insulation, natural plaster/shikkui) with passive design methodology and 3D CAD visualization. Its core service spans land search support, architectural design, construction management, and aftercare through an Owners Club membership, serving design-conscious homeowners in the Tokyo, Yokohama, and Shonan (Kanagawa) areas.

Product overview

ecomo operates as a registered first-class architect office (一級建築士事務所) offering natural material-based custom home design and construction in the Tokyo, Yokohama, and Shonan areas. Its core product is the ecomo style custom home — a comprehensive design-build service covering land acquisition, architectural design with 3D CAD visualization, interior coordination, and construction management. The company runs on a semi-custom module system called Eco Module (エコモジュール) that applies standardized design frameworks to natural material homes. Complementary offerings include a full renovation (リフォーム) service, condominium renovation, real estate brokerage through its subsidiary (エコモふどうさん), and an Owners Club (オーナーズクラブ) post-delivery membership providing ongoing chat support and maintenance services. The company differentiates through its use of Hokkaido diatomaceous earth, Kishu Peninsula cedar/cypress timber, and cellulose fiber insulation, combined with passive design methodology and 3D-based client collaboration.

Differentiator

Problem solved

Functional benefit

Brands

• ecomo Restaurant: Organic restaurant located at Shonan store with locally sourced vegetables
• ecomoふどうさん
• ecomoベーカリー
• ecomo LOHA S

Products and services

• ecomo Custom Home Design and Construction (ecomoの家づくり) Bespoke single-family home design and construction for individual homeowners in the Tokyo, Yokohama, and Shonan areas, using natural materials (Hokkaido diatomaceous earth, Kishu cedar/cypress timber, cellulose fiber insulation, natural plaster) and passive design methodology with 3D CAD visualization at every client meeting. Project budgets typically range from ¥15M to ¥40M+ (excluding land).
• Eco Module Semi-Custom Home (エコモジュール) Semi-custom home building service using standardized modules that combine natural materials, passive design, and 3D CAD visualization for more efficient design and construction than fully bespoke builds, offering a faster path to delivery for homeowners in the Shonan area.
• Land Search Service (土地探しサービス) Land search and acquisition support where ecomo architects evaluate candidate properties on a 10-point scale covering solar exposure, ventilation, regulations, ground conditions, and elevation before purchase, to ensure the desired home can be built on the plot.
• Reform (Reform) Renovation Service (リフォーム事業) Full-scale renovation services including interior, bathroom, water areas, structural reinforcement, insulation, and exterior work using natural materials for detached houses in the Shonan area.
• Mansion Renovation (マンションリノベ) Condominium Renovation Service Condominium renovation services transforming existing apartments with natural materials, custom millwork, and full redesign for apartment owners in the Shonan/Kanagawa area.
• ecomo Fudousan Real Estate Brokerage (エコモふどうさん) Real estate brokerage subsidiary assisting clients in buying and selling properties, including zero-commission brokerage service (0円仲介), offered as part of ecomo's integrated land-plus-building service.
• Owners Club (オーナーズクラブ) Post-construction membership program for homeowners providing dedicated chat support, maintenance request handling, maintenance tips, and a point-based incentive system redeemable for cash back, creating long-term customer engagement and a referral pipeline.

Quantifiable outcome

• Cellulose fiber insulation provides top-class fire resistance and thermal insulation performance when combined with high-density filling and proper roof ventilation.
• +3 more outcomes

Named customers3 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

Feature5 records

Partnerships

Two partnerships are on record, tiered core and supporting.

• 山長商店 (Yamacho Corporation / 山長の森)coreStrategic or Co-development Partnerecomo sources premium structural timber directly from 'Yamacho no Mori' (山長の森) in southern Kii Peninsula. Kishu cedar/pine with JAS-certified Young's modulus is used for structural columns and beams, while Kishu cypress is used for foundation sill plates. Direct sourcing from the producer provides full traceability and quality assurance for structural materials. This is a core materials partnership supporting ecomo's natural material differentiation.
• Patagonia Japan (パタゴニア)supportingChannel Partner/ Reseller/ Distributorecomo operates a Patagonia outlet at its Shonan showroom location. Patagonia's organic cotton clothing aligns with ecomo's LOHAS brand philosophy. ecomo acts as a Patagonia agent/retailer, selling organic clothing within the ecomo eco-lifestyle mall. This partnership reinforces ecomo's environmental brand identity while generating retail revenue from the ~50,000 annual showroom visitors.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Hinokiya House (桧家住宅): Custom home builder focused on natural wood (especially hinoki cypress) and high-performance energy-efficient housing. Comparable to ecomo's natural-timber and passive-design positioning, but with much larger national footprint and franchise model.
• Munekka Jyutaku (無添加住宅): Japanese custom home builder specializing in no-additive, natural-material construction with a nationwide franchise model. Directly comparable to ecomo in its emphasis on chemical-free materials and healthy indoor environments, though operating at significantly larger scale.
• Sarasa Home (サラサホーム): Franchise custom home builder specializing in natural materials and warm wood interiors across Japan. Comparable to ecomo's natural-material positioning and custom design-led sales model.
• Ichijo Komuten (一条工務店): Top-tier Japanese homebuilder known for industry-leading energy efficiency and ZEH performance. Comparable to ecomo's high-performance / passive-design orientation, though operating at much larger scale with broader product mix including conventional homes.

Broad incumbents

• Daiwa House Industry (大和ハウス工業): Japan's largest homebuilder with a broad portfolio including custom homes, rental housing, and commercial real estate. Increasingly active in ZEH and eco product lines, making it a competitor for eco-conscious buyers that ecomo targets.
• Tama Home (タマホーム): Large Japanese homebuilder offering value-priced custom homes nationally. Adjacent competitor for the design-conscious mid-market segment, though positioned more on affordability than natural-material premiumization.
• Sumitomo Forestry (住友林業): Major Japanese homebuilder with deep wood-frame construction heritage and a premium custom home business. Overlaps with ecomo on timber sourcing expertise and high-end custom positioning, but operates nationally across multiple price tiers.
• Panasonic Homes (パナソニックホームズ): National homebuilder affiliated with Panasonic Group offering custom and prefabricated homes with focus on durability and energy efficiency. Competes with ecomo for design-conscious urban buyers in the Kanto region.
• Sekisui Heim (積水ホーム): Major Japanese homebuilder known for unitized prefabricated housing and ZEH adoption. Competes for the same design-conscious mid-to-high income segment as ecomo via its own eco-product lines.
• Misawa Homes (ミサワホーム): Established Japanese homebuilder with custom and prefabricated product lines emphasizing long-life, high-quality construction. Comparable in targeting quality-conscious buyers, though with much broader geographic reach and product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCNGL-nscyfOO23Jv8O_UnuQ
• Facebookfacebook.com/ecomo.life
• Instagraminstagram.com/ecomo.architect

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 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 ecomo