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Self-Build

DIY Construction with a Kit: Build Your Own Prefabricated Steel House

The StarModul kit comes with every tube, joint, and panel cut to size, labeled, and accompanied by assembly instructions. It is assembled using dry construction methods and hand tools—no welding or large cranes required—so you can build your house yourself or with a local contractor.

Steel frame of a starmodul kit home assembled through self-construction
Structure of a prefabricated house assembled on the lot

Why is it possible?

A kit designed for you to assemble yourself

No soldering

Each joint in the structure is secured using a StarModul connector and screws. No welder is needed on site.

Without measuring or cutting

The tubes and panels arrive cut to size. On site, they are simply positioned and screwed into place.

Each item has its own reference number

Pipes, fittings, and panels are labeled with the same part number that appears on the drawings.

Floor Plans by Level

Layout, pipe take-off, joint-by-joint connections, 3D views, and panel layout.

Hand Tools

No large cranes or special machinery are needed for the structure.

Technical advice

We'll be there with you during installation to answer any questions that come up on-site.

Before You Begin

What You Need Before You Start

Building your own home doesn't mean skipping the formalities. A kit home is a house just like any other:

  • Project and Permit: Your architect will draft the project plans and apply for the building permit at city hall. See the permit guide.
  • Structural analysis: It is signed by an engineer and tailored to the loads and location of your home. We can provide a quote for it along with the kit.
  • Foundation: slab, footings, or crawl space, depending on the soil conditions and the project. It is not included in the kit, but the crawl space structure is available as an optional item.
  • Doors, windows, and fixtures: These are not included in the kit. They are installed by your builder or the contractors of your choice.
Pipe assembly diagram with part numbers for a prefabricated house
Pipe layout with part numbers and cross-sections

Step by step

How to Assemble a Prefab House

  1. Layout: Usingthe T-00 plan, the axes and dimensions are marked on the foundation, and the anchors are installed.
  2. Tiered Structure: Thetubes (Drawing T-01) are connected using StarModul components (Drawing U-01). The 3D view (D-01) shows how the structure is assembled.
  3. Facade: The sandwich panels are screwed to the structure according to the P-01 panel layout.
  4. Top Enclosure: Panels that enclose the top of the structure prior to the installation of the final roof.
  5. Roof: The steel substructure forms the slopes, and the roof panel with its flashinges is installed on top.
  6. Interior: Plumbing, drywall, flooring, and finishes, just like in any home.

You'll find an example of assembly drawings in PDF format in the technical documentation.

On video

Here's How to Assemble a StarModul Kit

With or without help

Put together whatever you want— we'll take care of the rest

Worldwide shipping

Kit (unassembled)

You can build it yourself or have your trusted contractor build it, using the plans and our guidance.

See what's included in the kit

About 2 hours and 30 minutes from Lleida

Kit with Mounting Hardware

Our team assembles the structure, the facade, and the roof. You or your contractor will handle the foundation and the interior.

View kit with assembly instructions

Lleida and Tarragona

Turnkey

If you ultimately decide not to do any of the work yourself, we'll take care of everything—from the design to handing over the keys.

See "turnkey"

For large or two-story homes, we recommend hiring someone with experience or our team.

Actual Works

Prefab homes that have already been built

See all projects

Frequently asked questions

Questions About Self-Construction

More Frequently Asked Questions
Can I assemble the kit without a model kit manufacturer?

Yes. The kit is designed for self-assembly: the parts come pre-cut and labeled, and the plans indicate where each one goes. For large or two-story homes, we recommend enlisting the help of someone with experience or our team.

What tools are needed?

Hand tools for screwing together the frame and panels. No welding or large cranes are needed for the frame.

Do I need a permit to build my own home?

Yes, just like any other home: an architect's design, a building permit, and, upon completion, a certificate of occupancy or a first-occupancy permit. The structural analysis is signed by an engineer.

Is the foundation included?

No. The slab, footings, or on-site sanitary floor slab are specified in the plans based on the site conditions. The structure of the sanitary floor slab using the StarModul system can be added to the kit.

Do you ship the kit outside of Spain?

Yes. The unassembled kit is shipped worldwide. Our team handles assembly on-site at locations within a maximum of about 2 hours and 30 minutes from Lleida.

Can I order just the frame?

Yes. The kit can be limited to the structure and connections, or it can be expanded to include exterior walls, the roof, and assembly drawings.

Free, No-Obligation Quote

Do you want to build your own house?

Send us the blueprints or a sketch and tell us where the lot is located. We'll prepare a quote for the kit.