House project:

Prefabricated wooden timber frame flat-roof single-storey modern family home with 2 bedrooms, 1 WC and a terrace.

Specifications

Total area

91.2 m²

Living area

74.1 m²

Terrace

17.1 m²

Storeys

1

Lenght:

11.7 m

Width:

9.2 m

Bedrooms

2

Bathrooms

1

About

BONA-74 is a single-storey, flat-roof family house characterised by clean lines, balanced proportions and a practical, open layout. It follows the minimalist architectural language of the BONA series while offering more interior space and increased flexibility compared to the smallest model. The design remains intentionally simple, focusing on clarity, usability and modern living.

The interior is centred around an open living, dining and kitchen area that benefits from generous natural light and direct access to the terrace. The larger floor area allows for more spacious common zones and improved room proportions, supporting comfortable everyday living. Bedrooms and bathroom areas are arranged for privacy and efficient circulation, making the layout suitable for couples, small families or long-term residential use. As with all BONA models, the single-level plan ensures easy movement throughout the house and a strong connection between indoor and outdoor spaces.

BONA-74 is built using prefabricated timber-frame construction, ensuring precise manufacturing, consistent quality and reliable energy performance. Wall, roof and floor elements are produced in controlled factory conditions. Insulation levels, exterior cladding, windows and roof solutions can be adjusted to meet local climate conditions and national building regulations while maintaining the clean, modern character of the house.

The name BONA-74 refers to the net living area of the house. The layout is designed to maximise usable space while keeping the footprint efficient and well balanced. Like other models in the BONA series, technical specifications can be adapted depending on location, use and project requirements.

BONA-74 offers a well-judged balance between compact living and additional comfort within a minimalist architectural framework. We encourage you to use the configurator to explore available options and get an indicative price. Many additional choices — including colours, finishes and further technical details — can be defined together during the project stage.

1st Floor

Hallway

6.9 m²

Technical room

2.0 m²

Bathroom

3.5 m²

Bedroom

10.3 m²

Bedroom

10.0 m²

Living room + kitchen

41.1 m²

BONA-74 2D floor plan

House project:

Prefabricated wooden timber frame flat-roof single-storey modern family home with 2 bedrooms, 1 WC and a terrace.

Configure your own house by selecting materials and details, and see how your choices affect the design and cost.
  • Country

    Select your country to display the configurator in the appropriate language and apply country-specific delivery and assembly costs to your estimate.

    • 1

      Latvia

    • 1

      Netherlands

    • 1

      Iceland

    • 1

      Sweden

    • 1

      Norway

    • 1

      Belgium

    • 1

      Germany

    • 1

      Switzerland

    • 1

      Luxembourg

  • Factory set

    • Roof material

      We use torch-on BMI Icopal for bitumen roofing. Black and gray colours are available and can be selected during the final design phase. Additionally - all our roofing options include a complete Ruukki drainage system as standard.

      • Bitumen

    • Roof panels

      We deliver roof and floor panels without ceiling-side plasterboard. This leaves the cavities open for you to install electrical, ventilation, and other utilities on-site without having to cut through finished surfaces.

      • 300mm

      • 350mm

      • 400mm

    • External wall material

      The final façade cladding is delivered and installed on-site. We use double-painted spruce cladding, Thermowood Natural, or Swisspearl's Patina Original fiber cement boards. Colours, board orientations (vertical or horizontal), and various other design options are selected during the final design phase.

      • Painted spruce

      • Thermowood

      • Stucco

      • Fiber cement boards

    • External wall panels

      External wall elements are factory-produced with insulation and both internal and external membranes. We deliver and install these panels without interior-side plasterboard, leaving the cavities open for you to install electrical, ventilation, and other utilities on-site. Internal wall panels are delivered with gypsum boards on one side; the opposite side remains open for utility installation.

      • 200mm

      • 250mm

      • 300mm

  • Windows and doors

    • Windows

      We use triple-glazed windows that meet regional requirements for child safety and burglary resistance. External metal window sills are included in the price.

      • PVC

      • Aluminium

      • Wood

      • Aluminium and wood

    • Doors

      We provide external doors with Resistance Class RC2 as standard; RC3 security upgrades are available on request. We only provide external doors—internal doors are not included in the price or the configuration.

      • PVC

      • Aluminium

      • Wood

      • Aluminium and wood

  • Optional

    • OPTIONAL: Interior finishings

      Electrical boxes, conduit routes, ventilation or plumbing systems can be integrated into the project drawings and pre-installed in the factory during the manufacturing process. We then supply OSB and gypsum boards and/or wooden cladding as loose materials to be installed on-site once all technical connections are finalised. While this tool focuses on gypsum and wooden cladding, other designs are possible and are finalised during the design phase.

      • OSB and gypsum

      • Wooden cladding

  • Reset to Default

Inspiration

 

Disclaimer

  • All prices in EUR excluding VAT.
  • This calculation is informational, non-binding, and does not constitute a final offer. It is based on the price list valid as of 01.02.2026 and is subject to change without notice.
  • Final pricing depends on order specifics, material selection, technical solutions, site conditions, logistics, labour costs, and market conditions at the time of production and execution.
  • The calculation is based on the assumption that wind load does not exceed 18 m/s, snow load does not exceed 2.5kN/m², live domestic load does not exceed 2 kN/m². Seismic loads are NOT evaluated.

Delivery and Assembly

Delivery and assembly costs appear in the configurator only after a specific country flag is selected. This allows us to calculate specific regional rates, as delivery distances and labour laws differ wildly between markets. The English version provides general information and excludes these estimates.

Structural design & technical documentation

Structural design and technical documentation are included in our pricing. Our engineering team prepares the construction drawings, structural calculations, energy performance data, and material specifications required for manufacturing and construction in the destination country.

Foundations

Foundation construction is not included in the price. We provide a precise foundation plan, but the customer is responsible for soil testing, site preparation, and the actual construction of the foundation based on our technical drawings.

Interior Finishing

We do not provide turnkey interior services. Internal doors, floor coverings, priming, painting, and tiling are not included in our scope or calculations (unless specifically selected as an option). The building is delivered with internal walls prepared for your chosen finish after technical systems are finalized.

Not included and provided by the client

The following items are outside our scope and must be provided by the client: foundation and structural floor construction; electrical wiring and distribution; ventilation, plumbing, heating systems, and interior priming (unless specifically selected as an option), painting, and tiling; construction waste removal; on-site mobile WC and worker accommodation; crane and operator services; temporary heating; customs duties; scaffolding rental and assembly; on-site unloading; and any bank guarantee or letter of credit fees.

If BONA-74 feels like the right fit for You, get in touch to discuss configuration options, pricing and next steps for your site and requirements.

Start Your BONA-74 Project