A steel-and-concrete core built indoors, craned onto your foundation, wrapped in finish panels you choose.
Who we areThe skeleton,
welded to a millimetre.
Jig-welded tube frames that do not warp, rot or feed termites, and span big glass walls.
SteelPrecast floors
and core.
Slabs and a wet-wall core: fire-rated, quiet, thermally steady.
ConcreteTriple-pane,
glazed in the factory.
Low-e units set into steel-framed openings before the module leaves the plant.
GlassReplaceable
finish panels.
Concrete, weathering steel, zinc, terrazzo, ceramic or aluminium.
FinishSix steps.
One crane day.
Factory and foundation run in parallel.
Pick your home & finish
Choose a model, floor plan and exterior finish panels. Our engineers lock the structure; you choose the look.
- Four base models, 480–2,000 sf
- Six finish families, change anytime
- Plans stamped for your state
We weld the steel frame
Each module’s skeleton is welded in a precision jig with 100% inspection. Indoors, daily, repeatable. No rain days.
- ±1.5 mm frame tolerance
- Galvanised / duplex coatings
- Joint hardware pre-installed
Concrete floors & cores are cast
Precast floor slabs and wet-wall cores are cured in climate-controlled beds, then craned into the frame. Glass, insulation, MEP and cabinets follow.
- Fire-rated, rot-proof, quiet
- Plumbing & electrical pre-run
- Triple-pane glazing installed
Finish panels go on
Your chosen finish panels are hung on thermally broken rainscreen rails. A ventilated cavity keeps the structure dry for good.
- Concrete, steel, zinc, terrazzo, ceramic, aluminium
- Replaceable panel-by-panel
- Factory QC before shipping
Trucked out, craned in a day
Modules ship on standard flatbeds and are lifted onto your foundation. Anchor plates bolt down and corner connectors tie the stack together.
- 1–3 days to set the house
- Bolted, grouted & tensioned joints
- Utilities hook-up in days
Move in
Final inspection, certificate of occupancy, keys. A house that’s finished in months, not years, and built to outlast the mortgage.
- Weeks of site work, not months
- Warranty on structure
- Change the look later: swap panels
A house is a structure
plus a skin.
960 sq ft, two modules.
The house
Two factory-built modules, 960 sq ft. This is what rolls off the truck: a finished home you can walk through.
Finish panels
The skin. Board-formed concrete, weathering steel, zinc, terrazzo, ceramic or aluminium, hung on rainscreen rails. Swap them in a day without touching the structure.
Glazing
Triple-pane low-e units set into steel-framed openings in the factory: airtight, watertight and tested before they ever see weather.
Steel frame
Nine columns, welded beams and X-braces form a rigid box per module, jig-welded to ±1.5 mm. Rust-red plates are the bolted joints that tie the modules together.
See every jointConcrete floor & core
A precast floor slab and wet-wall core carry the plumbing, give thermal mass and fire resistance, and make the floors quiet. Shear keys lock the two modules along the centre joint.
Foundation & anchors
Nine piers with cast-in anchor bolts. Base plates bolt each module down, with leveling nuts so the crane crew can dial it true.
How the modules
lock together.
Bolted, grouted, welded, tensioned, keyed.
Bolted Corner Plate
Module-to-module, vertical stacking
Grouted Sleeve Splice
Concrete core, wall to slab and wall to wall
Welded Gusset Node
Steel frame beam-to-column
Post-Tensioned Tie Rod
Through-module vertical clamping
Interlocking Shear Key
Module-to-module, side by side
Foundation Anchor Plate
Module-to-foundation
Rainscreen Rail Clip
Structure-to-finish panel
Moment Brace Frame
Lateral system inside each module
Same structure.
Your face.
Six families. Every panel replaceable.
Versus wood frame.
| STRATUM steel + concrete | Typical wood frame | |
|---|---|---|
| Structure | Welded steel frame + precast concrete floors and core | Dimensional lumber, nailed on site |
| Fire | Non-combustible structure; concrete & steel don’t feed a fire | Combustible framing |
| Rot, mold, termites | Inert structure, nothing to rot or eat | Vulnerable if wet; needs treatment |
| Wind & seismic | Built to be lifted and trucked; braced modules stay rigid | Depends on nailing & connectors done on site |
| Build location | Indoor factory, jig-welded, inspected | Outdoors, exposed to weather |
| Schedule | Foundation and factory run in parallel; set in 1–3 days | Sequential trades, weather delays |
| Cost driver | Repeat tooling, less labor, less waste | Site labor & rework |
| Look & changes | Replaceable finish panels on rainscreen rails | Siding is fixed to the wall |
| Lifespan | Designed for 75+ years structure | Typically 50–70 with upkeep |
Design targets and typical industry characteristics; not a guarantee for a specific project. Local code governs.
Models
480 to 2,000 sq ft.
S1 Studio
One module, one crane lift. The fastest way to add a legal dwelling to a lot you already own.
C2 Courtyard
Two modules split around a glazed living room. Open plan, big windows, finished ready for furniture.
R3 Ridge
Three modules in a long bar. A full-height glass living module anchored by two bedroom wings.
T4 Terrace
Four modules stacked 2×2 with a concrete core running full height. Terrace on the upper roof.
Building Codes
All 50 states and D.C.
Is a modular home the same as a manufactured (mobile) home?
No. Manufactured homes are built to the federal HUD code on a permanent steel chassis. Modular homes are built to the same state and local building codes as site-built houses (the IRC/IBC), delivered in sections, and set on a permanent foundation. They are financed, appraised and insured like any house.
Why steel and concrete instead of wood framing?
Steel and concrete are non-combustible, immune to rot and termites, and dimensionally stable. A steel module is built to survive being lifted by a crane and driven down a highway, so it is already stronger than it needs to be as a house. That reserve capacity shows up as wind, seismic and fire performance.
How can it be cheaper if the materials are stronger?
Because the cost is in labour, waste and delay, not the raw steel. In a factory the same crews build every day, indoors, in jigs, with repeat tooling. There is no weather delay, little waste, and the on-site portion shrinks to foundation, crane day and utility hook-up.
What are finish panels?
The exterior skin is a set of replaceable panels (concrete, weathering steel, zinc, terrazzo, ceramic, aluminium) hung on rainscreen rails off the structure. You choose the look; the structure underneath is the same.