Metal housing modules: modern, fast and affordable homes

Building a house has ceased to be synonymous with long, complicated and unpredictable works. With advances in engineering and architecture, metallic housing modules appear as a practical and efficient solution for those looking for a functional, contemporary property with good quality-price ratio. In Portugal, this type of construction is gaining ground, especially in permanent housing projects, local accommodation and sustainable solutions.
Apr 9, 2025

What are modular metal houses?

Modular metal houses are constructions based on prefabricated modules with a metal structure, generally made of galvanized light steel. These modules are produced in a controlled environment, in a factory, with great precision and technical quality. Subsequently, they are transported to the site of implantation and assembled in a few days or weeks, with minimal environmental impact and great time savings.

The modular construction stands out for its industrialized character and for the possibility of customization. Each module works like a piece of lego that fits with others, and can be combined to form single-storey houses, with one or two floors, and with varied configurations. The result is a solid, durable construction adapted to the customer's specific needs.

Main advantages of modular construction in a metal structure

  • Fast execution: up to 80% of the property can be built in a factory, reducing construction time to 3 to 6 months.
  • Precision and quality control: production in an industrial environment guarantees a uniform finish and fewer flaws.
  • Sustainability: less waste of materials, lower water consumption and easier integration of ecological solutions (such as solar panels).
  • Controlled cost: greater budgetary predictability and lower risk of financial slippage.
  • Project flexibility: customization of the number of rooms, living area, finishes and design.
  • Simplified installation: minimal ground preparation and assembly with low interference in the neighborhood.

Stages of the modular construction process

  1. Design and customization
    Definition of layout, number of modules, finishes, insulation solutions and energy systems, always focusing on functionality, comfort and budget.
  2. Licensing and authorizations
    Submission of projects to the city council, following the same rules as traditional construction.
  3. Factory-made
    Production with millimeter precision, including electricity, plumbing, and ventilation installations.
  4. Preparing the ground
    Execution of simple foundations, leveling and connection to public networks. Fast and clean step.
  5. Transportation and assembly
    Sending the modules to the field and assembling them with cranes, usually in a few days.
  6. Final finishes
    Technical adjustments, installation of coatings, verification of systems and, if applicable, outdoor landscaping.

Finishes and materials used

The materials of the modular metal houses are of high quality and can be fully customized:

  • Exterior coatings: treated wood, metal panels, technical ceramic or natural stone
  • Interior floors: vinyl, floating, microcement or ceramic
  • Thermal and acoustic insulation: rock wool, sandwich panels, thermally cut windows
  • Kitchens and bathrooms: fully equipped, with quality appliances and crockery
  • Air conditioning: pre-installation of air conditioning, heat pumps or VMC

Where is interest in modular homes growing?

Interest in modular homes in Portugal is growing especially in regions with available land and low urban density:

  • Setúbal, Évora, Santarém and Leiria
  • Surrounding areas of Lisbon
  • Quieter coastal areas

In these locations, the speed of execution and the reduction in licensing costs make the modules an attractive choice for permanent housing or tourism.

Durability and strength of the metal structure

The structure is made of high-strength galvanized steel, treated against:

  • Rust
  • Humidity
  • Insects
  • Atmospheric agents

In addition, the use of modern materials such as sandwich panels and technical ceramics reinforces thermal and acoustic insulation, ensuring comfort all year round.

These houses comply with all technical and urban planning regulations and can be legally licensed.

Estimated costs and delivery times

  • Base structure with assembly: from 900 €/m²
  • Complete house, turnkey: between 1,100€ and 1,500 €/m²

Delivery times:

  • Production: 8 to 12 weeks
  • Transportation and assembly: 2 to 4 weeks

Compared to conventional constructions of 12 to 18 months, the time savings are significant.

A construction model adapted to the future

With increasing housing scarcity, high construction costs and environmental requirements, metal modules are a realistic, efficient and sustainable alternative.

This model allows for more architectural creativity, easily adapting to the evolution of residents' lives.

At Casa Nova, we are preparing modular solutions for all profiles - from small houses for couples or AL, to larger projects for families.

Contact us and ask for a personalized proposal. We are ready to build your project with innovation, efficiency and quality.

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