Home additions & new homes in Portola Valley.
The right home makes room for family while respecting the land around it. For a Portola Valley addition or new build, start with the way you want to live, then bring the house, access and outdoor spaces into one coordinated conversation.
Discuss your projectComplimentary estimates.
The landscape is part of the brief.
A floor plan tells only part of the story. Where the building sits, how the ground changes and what needs to remain undisturbed can all influence the construction work. Gather those details before narrowing the options.
Separate the different approvals.
Portola Valley’s application resources distinguish architectural and site-plan review, building permits, tree removal and site-development permits. Your design team should identify the combination relevant to the proposal; a single application name does not describe the whole review process.
Read the city guidanceUnderstand the work outside the walls.
The Town’s site-development guidance addresses grading and vegetation removal, including circumstances affecting significant trees. Discuss proposed excavation, changes in levels and any tree impacts with Planning before assuming they are covered by the house drawings alone.
Read the city guidanceBring the site specialists in early.
The same guidance identifies geologic mapping and review as important to site-development applications. If the property needs engineering or geology input, include those findings in the design and construction discussions. The home and the work required to support it should be understood together.
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.
- A site survey, available topography and the proposed location of the work
- Any geology, geotechnical or civil-engineering information
- A list of trees and outdoor areas you want to retain
- Architectural concepts and any ASCC or planning correspondence
Before we talk.
Does site development mean only the house footprint?
No. The Town’s published guidance also addresses grading and vegetation work. Share the entire proposed site scope, including work outside the house, so the relevant requirements can be identified.
Can a new home and landscape work be discussed together?
Yes. Explain the intended relationship between indoor and outdoor areas, and who is preparing each part of the design. We can discuss construction interfaces and the decisions that need coordination.
Do we need every report before contacting you?
No. Bring what exists and be clear about what is still being investigated. We can begin with your goals and current drawings, then identify the missing information needed for a more detailed construction discussion.
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
Portola Valley home.
A father and his sons. A conversation about what comes next. Estimates are complimentary.
Discuss your project