Unno House

What Unno House does

Unno House (ウンノハウス) is a Yamagata-headquartered residential construction company founded in 1959 that designs, builds, and sells custom wooden detached houses for individual consumers across the four prefectures of Yamagata, Okitama, Fukushima, and Miyagi in Japan's southern Tohoku region. The company's core technical platform is the proprietary EPOCH-NX structural system, which combines 2x4 panel construction with traditional Japanese post-and-beam framing to deliver Earthquake Resistance Grade 3 and Thermal Insulation Grade 6 (UA value 0.28) as standard specifications. Manufacturing is anchored by an in-house pre-cut factory in Tendo City (operational since 1974) that delivers millimeter-precision wood components, supporting a cumulative base of approximately 18,000 homes delivered over 67 years of operation.

The company's revenue model is built on one-time home construction and sale transactions across multiple product tiers: fully custom architect-designed homes, the semi-custom 'SNUG' line (100+ floor plans), the spec-home sub-brands 'jigsaw' (air-quality focused) and 'LIFE LABEL' (design focused), completed homes with bundled land and furniture, standalone residential land sales, renovation services, and non-residential CLT (Cross Laminated Timber) commercial construction. Go-to-market is direct-to-consumer through company-owned showrooms, full-scale model houses (70-100 tsubo exhibition venues and ~30 tsubo city-model houses), factory tours, and a multi-channel digital presence (Instagram, LINE, TikTok, YouTube, Pinterest, VR tours, online consultations). Spec home packages price in the ¥3,620-4,630万 range and land-only parcels in the ¥480-1,622万 range, with after-sales support including up to a 60-year structural warranty and free 5-yearly inspections.

Unno House is privately held with no disclosed institutional investors, parent company, or public listing, and is led by President & Representative Director Saito Nobuaki. The company maintains a regional leadership position in southern Tohoku with operational hubs in Yamagata (headquarters and pre-cut factory), Fukushima, and Sendai (Miyagi), and reports an employee base of 101-250.

Name

Unno House

Legal name

株式会社ウンノハウス

Website

https://unnohouse.co.jp

Company type

Private

Founded year

1959

Operating status

Operating

Headcount range

101–250 employees

Short description

Unno House is a privately held Japanese residential construction company founded in 1959, building custom, semi-custom, and spec wooden homes across Yamagata, Fukushima, and Miyagi using its proprietary EPOCH-NX structural system and in-house pre-cut factory.

Ownership category

akta.pro rank

Product category

Residential Home Building

NAICS

New Single-Family Housing Construction (except For-Sale Builders) (236115), New Housing For-Sale Builders (236117), Residential Remodelers (236118)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Custom Home Building (IMAFABAC)

Keywords

• Custom home construction
• Wooden home builder
• Residential construction services
• Home renovation services
• Spec home sales

Headquarters

HQ city

Yamagata

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Custom Home Construction: Bespoke wooden homes designed from scratch with architects, offering personalized floor plans and designs
2. Semi-custom Homes (SNUG): Semi-custom homes offering 100+ pre-designed plans with customizable interiors and equipment
3. Spec/Finished Homes: Pre-built homes sold with land, featuring designer furniture and coordinated interiors
4. Renovation Services: Renovation and remodeling services from partial updates to full renovations
5. Commercial Construction (CLT): Non-residential wooden construction using CLT (Cross Laminated Timber) technology

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Unno House designs and constructs custom, semi-custom, and spec wooden detached homes for individual buyers across the Tohoku region of Japan, using its proprietary EPOCH-NX hybrid structural system. In addition to home building, the company sells residential land plots, offers renovation services for existing homes, and provides non-residential wooden construction using CLT technology, supported by an in-house pre-cut factory.

Product overview

Unno House operates as a multi-brand housebuilding company offering custom-built detached houses (自由設計), semi-custom houses (SNUG), specification houses (jigsaw, LIFE LABEL), completed house sales (建売住宅), land sales, renovation/reformation services (リノベーション), and non-residential CLT construction (事業用建築/CLT). The core product is the custom-built house built using the proprietary EPOCH-NX structural system (軸組壁工法), achieving seismic rating 3 and insulation等级 6/UA value 0.28 as standard. The company also offers a specialized snow-melting roof system (雪おろしのいらない家) for heavy snowfall regions. Additional offerings include land sales across Yamagata, Okitama, Fukushima, and Miyagi prefectures, and a full renovation service.

Differentiator

Problem solved

Functional benefit

Brands

• SNUG: Semi-custom order housing product with 100+ floor plan options allowing customization of interior and equipment.
• jigsaw
• LIFE LABEL

Products and services

• Custom-built Detached Houses (自由設計) Bespoke detached wooden homes designed from scratch by Unno House architects, with personalized project teams formed for each customer to create custom floor plans and tailored designs for long-term family residences.
• SNUG (Semi-custom homes)

Quantifiable outcome

• Earthquake Resistance Grade 3 (highest level) as standard specification
• +2 more outcomes

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• 日成不動産 (Hinsei Fudosan)minorOthersLand development partner for property subdivision projects; sells land parcels through Unno House with building条件付 requirements

Scale indicators3 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Tama Home: A mid-to-large Japanese homebuilder focused on affordable-to-mid-market custom and spec detached housing. Comparable in offering a mix of custom, semi-custom, and spec homes and operating a direct showroom sales model similar to Unno House's.
• Sumitomo Forestry: Japan's largest wooden-home specialist, offering custom-built timber homes across the country. Directly comparable to Unno House in material focus (wood), custom design-build model, and emphasis on long-lasting wooden construction.
• Ichijo House: A leading Japanese custom homebuilder offering high-performance, energy-efficient detached houses with proprietary structural and insulation technologies. Highly comparable to Unno House in product positioning (custom, design-build, premium performance), though operating at significantly larger national scale.

Broad incumbents

• Daiwa House Industry: Japan's largest construction and homebuilder with extensive operations in single-family housing, rental housing, and commercial real estate. Overlaps with Unno House's detached housing business and competes across the Tohoku region.
• Sekisui House: Japan's largest homebuilder with a broad portfolio of detached, custom, and rental housing plus residential remodeling. Competes with Unno House in custom and renovation across Tohoku, but operates at national scale with much broader product breadth.
• Panasonic Homes: A national Japanese homebuilder offering custom, spec, and renovation services with strong technology positioning around energy efficiency and smart homes. Competes with Unno House in custom detached homes and renovation across multiple regions including Tohoku.
• Heim (Sekisui Heim): A major Japanese homebuilder under the Sekisui group specializing in unitized/modular factory-built housing. Comparable to Unno House's factory-driven approach to consistent quality, but with broader geographic reach and standardized modular products.
• Asahi Kasei Homes: A mid-to-large Japanese residential builder with a focus on long-life, energy-efficient custom homes and condominium business. Comparable in custom-home quality positioning but with broader product diversification.
• Haseko Community: A division of Haseko Group focused on condominium management, custom and rebuild housing, and renovation services in Japan. Comparable to Unno House in residential renovation/custom housing but with strong urban condominium exposure as well.

Regional players

• Royal Home: A regional Japanese homebuilder focused on custom and renovation housing in select prefectures. Directly comparable to Unno House in regional operating model and target customer, although serving different specific geographies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@unnohousemovies
• Instagraminstagram.com/unnohouse
• TikToktiktok.com/@unnohouse
• Pinterestpin.it/8NjQZkpqg

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Unno House