17 Trades

Site

1. Surveyor
2. Soil scientist
3. Structural Engineer
4. Civil Engineer
5. Landscape designer including hardscape and waterscape

Builder

1. Equipment operator
2. Foundation and concrete
3. Carpenter
4. Plumber
5. Electrician
6. HVAC
7. Siding installer
8. Roofing
9. Drywall and ceiling installer

1. Landscaping
2. Painter
3. Flooring/Carpet Installer
4. PV installer
5. Kitchen cabinet maker
6. Gutter hanger
7. Insulation installer
8. Driveway installer - we like pervious pavement

Then after one can do all of the above, they qualify for

1. Build Manager
2. Developer

After doing all of the above, an OSE-spec builder can then move on to design.

Design

1. Integrated House Designer
2. Drafter - blueprints
3. Interior design
4. Landscape design
5. Electrical design
6. Plumbing design