Flat roof (Option 1)
Every wall at 10 feet and a low-slope roof with the drainage built into the top pour. The simplest roof to build.
$247,200from, estimate
Start here
Cast concrete panels on steel studs
A concrete house, cast as panels, built in days.
Pick the size, roof, rooms and finishes; the price updates as you go. Watch the build from the casting bed to the roof membrane, then walk through the rooms.
Choose a roof
Same walls, three roofs. Every roof is cast in strips at our plant and lifted on by crane; pick one and the whole house is priced from it.
Gable roof, 4:12 (Option 2)
A ridge over the bedroom wall with a vaulted open zone; six lighter roof strips on two slopes and a ridge beam.
$266,700from, estimate
Start hereShed roof to the view (Option 3)
The front wall rises to 12'-6" with a clerestory band over seven view windows; the roof rises one inch per foot toward the view.
$258,900from, estimate
Start hereSaved designs
A saved design is a house Ken Land configured. Open it to see it priced and built, or scan the code to open it on your phone.
See it built: 40' × 28' house, 2 bed 2 bath
Same walls, three roof designs. The links below open the animation already set to that design; the switch in the control panel changes it live.
- Shed roof to the view (Option 3)
Front wall raised to 12'-6" with a clerestory band over seven view windows; roof rises 1"/ft toward the front. Plays the full build from the casting bed to the membrane.
- Flat roof on 10' walls (Option 1)
Same house with every wall at 10' and a low-slope roof; drainage built into the top pour.
- Gable roof, 4:12 (Option 2)
Ridge over the bedroom wall with a vaulted open zone; six lighter roof strips on two slopes, ridge beam, gable-end infill on the side walls.
- Walk-through of the floor plan
First-person tour through the rooms with captions, or walk freely with the keyboard. Opens on the shed design; switch designs in the page.
- Wall animation (Claude copy)
Private artifact of the same animation with the design switch; sign-in needed.
Design and price your own house
Pick the size, roof design, rooms, windows, foundation, heating and finish level; the price updates as you go from the same cost basis as the estimate workbook. Four tabs: Price, Exterior (wall, trim, roof and door colours, door styles, window frames, lights, with a live 3D view and a saved rendering), Floor plan (drawn for the chosen size and rooms) and Walk-through. Every design gets its own link and an animation of the build.
- House configurator
Set the footprint on the 4-foot panel grid and choose the options; see the cost by section with materials and labor, adjust the prices and margins, then open the animation of exactly that house or print the estimate.
Renderings
Exterior renderings saved from the configurator (Render image on the Exterior tab). Natural grey is the cast cladding with no coat; every other colour is a coat priced on the Exterior tab.
- 40 × 28 house, corner view
The 2 bed 2 bath house from the estimate: shed roof to the view, natural grey cladding, charcoal trim, flush door, white frames, wall sconces. 2020 × 1260.
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- 40 × 28 house, front view
Straight-on view of the front wall: entry door, seven view windows and the clerestory band. 2020 × 1260.
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- 56 × 36 house, terracotta, corner view
Finished house from the front-left corner at dusk lighting, 2020 × 1260.
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- 56 × 36 house, terracotta, front view
Straight-on view of the front wall: seven view windows, clerestory band, craftsman entry door, 2020 × 1260.
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Plans and roof options
- Floor plan
2 bed · 2 bath open plan drawn to scale on the 4' panel grid, with the door/window schedule from the model.
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- Floor plan SVG
Vector drawing of the plan.
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- Three roof options
Flat, gable and shed compared: spans, panels, concrete, picks and order-of-magnitude cost. Options 1 and 3 are built into the model.
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Working files estimate workbooks, design documents and the roof panel project
Estimates (Excel)
Blue cells are inputs, yellow cells are prices and assumptions to replace with quotes; the Summary tab is the page to show.
- House estimate — walls, roof, everything else
Complete house: roof design (flat / gable / shed), foundation (slab, floor panels site-built, or floor panels from our plant), walls, roof, plumbing, electrical, heating options, kitchen, baths, flooring, doors and windows, finishes, site and soft costs. Manufacturing tab prices the panels (plant cost + overhead + margin) and the Summary buys them at that price.
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- Roof panel estimate (studio)
Materials takeoff and cost for the 25' × 21' roof panel with the same manufacturing model: plant vs site lines, Manufacturing tab, the roof bought at its sell price; floor options tab.
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Roof panel — Jamaica studio, 25' × 21'
The original lift-in-place roof panel project: cast in a ground form, craned onto printed walls, top pour and membrane.
- Roof panel animation
Four phases of work in one timeline: static model, build sequence, rigged lift and set, dimensions and export.
Design documents
- Wall system design basis
What Ken stated, what the model assumes, and the open items for the engineer.
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- Roof panel spec (Lens 1)
Loads, the span problem, the pick, interfaces and open items.
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