Tell us what you want to build. We’ll draw it.

Casavane is a design partner for studios, home additions and small homes. Chat about your idea and get drawings and a shopping list, with no CAD skills needed.

We’d like a studio at the back of our property for working from home. Sunny, and we want to keep the apple tree.
Lovely. Two quick questions: who will use it, and does it need a toilet?
Just me. No toilet.
Here are three layouts that face the sun and keep the tree.
Compact
12 m²
Studio
17 m², wide glass
Studio and store
21 m²

From one sentence to a shopping list.

You keep talking. Casavane keeps one model underneath, so every change shows up in the drawings and the quantities.

“A studio, sunny, keep the apple tree.”

Ideas that fit your plot

Casavane asks about light, orientation and how you’ll use the space, then offers layouts that suit your property and budget. Photos, sketches and site plans all help.

“Move the desk to the right-hand wall and make the windows bigger.”

A concept you can walk through

Change things by talking or dragging. See the space in 3D and watch how daylight moves across it through the year.

“Give me drawings my builder can use.”

Proper schematics

Dimensioned plans, elevations, sections and construction details, exported as DWG, DXF, IFC or PDF for any professional to pick up.

“What do I need to buy?”

An exact materials list

Quantities with waste allowances, plus honest comparisons such as timber frame against masonry on cost, carbon and insulation.

See how it works in detail

Your studio, as a shopping list.

Change the size or the way it’s built and watch the quantities update. This is a small taste of what Casavane works out from your drawings.

Units
Walls

Example only, with a 10% waste allowance included. Your real list comes from your own drawings and can show live supplier prices.

You lead. Professionals stay in the loop.

Structural design and permit applications need a qualified professional’s sign-off. Casavane gets you to that point with a clear brief, and can connect you with an engineer for review.

Every layout is checked

Local building rules, spans, boundary setbacks and escape routes are tested before you see a design.

Doubts are flagged

If Casavane isn’t sure about something, it says so and tells you who should look at it.

Engineer review on request

Add a vetted structural engineer to check your drawings before you submit them to your local authority.

Made for the projects people actually do.

Studios and outbuildings Home additions Attic and loft conversions, coming next Small homes, coming after

Free to dream. Pay when it’s real.

Explore

Free

Ideas, layouts, 3D walkthroughs and sun studies.

Project

From $249 per project

Pay once for each project. Includes 90 days of design changes, drawings in every export format, the checks and the materials list.

StudioOutbuildings and studios up to about 25 m² (270 ft²)
$249
AdditionSingle-floor home additions up to about 50 m² (540 ft²)
$449
MajorLarger additions, and loft or attic conversions
$799coming later

Pro

$1,290 a year

That’s two months free compared with paying monthly.

For builders, developers and architects who want fast concepts. Includes 3 new projects a month. Extra projects are $39 each.

All prices in US dollars. Optional structural engineer review is quoted separately for each project.

See full pricing, the plan comparison and FAQs

Got a project in mind? Start the conversation.