Alza Development · Santa Rosa, California
3631 Orbetello Ct
A proposed four-bedroom home.
Space for everyday living, work and gathering.
Projected sale
$1,530,000Modeled project cost
$1,212,800Projected project profit
$317,200Project profit margin
20.7%The economics
Project pro forma
A living-area basis of 3,060 sq ft.
Construction includes the garage within the allowance.
| Item | Amount |
|---|---|
| Projected sale proceeds3,060 sq ft × $500 | $1,530,000 |
| Construction3,060 sq ft × $350 | $1,071,000 |
| Soft costs | $50,000 |
| Commission + closing6% combined, based on sale proceeds | $91,800 |
| LandExcluded from this model | $0 |
| FinancingAll cash, no loan interest or fees | $0 |
| Total modeled costs | $1,212,800 |
| Projected project profit | $317,200 |
Project margin = profit ÷ gross sale proceeds. It is not an investor return.
The $350/sq ft construction allowance covers the full build, including the garage. The $50,000 soft-cost allowance is a single budget line. Costs outside these allowances are excluded. Land is excluded by scenario assumption. Actual costs and sale proceeds may differ.
The layout
Two floors, one considered home
≈2,090 living sq ft
Living, gathering and resting
The primary suite and guest bedroom share the main level with the open living, dining and kitchen space. A front office, pantry and laundry/mudroom support the daily routine.
- Primary suite + guest bedroom
- Two full bathrooms
- Front office and pantry
- Attached two-car garage
Approximate living areas exclude the garage. The furnished views are conceptual; the dimensioned RD07 drawings control measurements.
The vision
Inside Orbetello
Warm materials and connected spaces.
Proposed interiors shown through concept renderings.
Renderings illustrate design intent. Finishes, fixtures, exterior and roof coordination may change as the plans develop.
Alza Development
Discuss the project.
Connect with Alza about the design and project assumptions.
About this model
This page presents preliminary project economics and conceptual design information as of October 5, 2026. Projections are estimates and are not guaranteed. No investor allocation, annual return or investment terms are modeled. This information does not constitute an offer to sell or a solicitation to buy an investment.