Home additions & new homes in Mountain View.
Keep the neighborhood you enjoy and rethink the home around your life. Sami & Sons works with Mountain View homeowners on additions, new construction, ADUs and substantial remodels, beginning with what you need the finished spaces to do.
Discuss your projectComplimentary estimates.
Check the exceptions before making assumptions.
Mountain View’s single-family guidance distinguishes development that meets zoning standards from cases needing a planning permit. Understanding where the existing home fits makes the next conversation much clearer.
Separate planning review from building permits.
The City says a zoning-compliant single-family project generally does not need a Planning Division permit, with listed exceptions. Building permits still apply. Confirm the path rather than mistake the absence of discretionary design review for permission to begin work.
Read the city guidanceBring existing constraints to light.
Mountain View lists additions to nonconforming homes, work affecting historic homes and qualifying creek-adjacent properties among planning-permit cases. Share the property history and any previous city comments before the design team settles on an extension.
Read the city guidanceInclude utilities and exterior work.
The additions guidance identifies possible additional permits for items such as utility connections, work in the public right-of-way and fire sprinklers. Include that scope in the discussion so the estimate is not based only on the new rooms.
Read the city guidanceStart with the space
you have in mind.
Additions and new homes lead our work. We also build ADUs, whole-house remodels, sunrooms and garage conversions.
Bring what you have.
We’ll start there.
You do not need every answer to get in touch. These details help us understand the work you are considering.
- Existing permits, drawings and any known nonconforming conditions
- A title report or easement information already available
- The proposed room changes and any utility or driveway work
- Any city feedback about the property’s historic or creek-side context
Before we talk.
Does no planning permit mean no building permit?
No. These are different approvals. Mountain View’s guide explains when a planning permit is needed, while its additions page requires permits for the construction work.
Can a fence tell us exactly where the property line is?
The City cautions that fences are not a reliable boundary reference. If boundaries affect the proposal, discuss the available survey information and the need for clarification with the design team.
Can we improve the layout without replacing the whole home?
That may be one option to explore. Bring the current plan and explain which spaces are difficult to use. We can discuss a remodel or addition alongside the alternative of a new home, based on the actual scope.
Local planning resources.
City guidance checked September 18, 2026. The applicable requirements depend on your property and proposal; confirm them with the City and your design team.
Let’s talk about your
Mountain View home.
A father and his sons. A conversation about what comes next. Estimates are complimentary.
Discuss your project