Home additions & new homes in Belmont.

An addition can change the way the whole house works. A new home can make room for different priorities. Sami & Sons serves Belmont homeowners with a family construction team and a conversation that starts with the property and the people who live there.

Discuss your project

Complimentary estimates.

Axonometric drawing of a house, garden, paths and property boundaries.
A property-planning illustration: consider the house, access, outdoor space and nearby boundaries together.
Planning your project

Choose the scope before assuming the process.

A ground-floor extension, an extra level and an independent dwelling are different proposals. Explain the outcome you need, then work with the design team to identify the review questions for that particular option.

Understand Belmont’s review tiers.

Belmont describes a tiered Single Family Design Review system based on the scope of work. The review level also affects outreach and hearing requirements. Ask Planning to classify the proposal before building a schedule around a smaller project’s experience.

Read the city guidance

Consider the shape of the lot.

The City explains that lot size, shape and slope work together with setbacks, height and floor-area standards to influence the home’s possible form. Bring a site plan into the design conversation, especially when considering a second level or work on changing grades.

Read the city guidance

Give an ADU its own feasibility discussion.

Belmont describes a ministerial route for ADUs that meet its applicable standards. That is distinct from ordinary single-family design review. If independent living is the goal, discuss the ADU option using the City’s dedicated guidance rather than treat it as simply another bedroom addition.

Read the city guidance
What we build

Start 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.

Our first conversation

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.

Architectural drawings, a house model, pencils and material samples arranged for a planning discussion.
Bring the drawings, priorities and questions into one conversation.
  • A site plan or survey showing the lot and existing levels
  • Your preferred scope: addition, new home or independent living space
  • Any planning feedback about the applicable review tier
  • A brief describing privacy, access and the rooms you need most

Before we talk.

Will every Belmont addition need the same public review?

No. Belmont describes different tiers with different review and outreach requirements. Confirm the tier for the actual proposal with Planning.

Should an ADU and an addition be treated as interchangeable?

No. They serve different living arrangements and have different planning considerations. Tell us whether the space needs to function as an independent home, so that distinction is clear from the beginning.

Can you discuss construction on a sloping property?

Share the survey, available site reports and current drawings. We can discuss the proposed construction work with your design and engineering team, including the information still needed to understand it.

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
Belmont home.

A father and his sons. A conversation about what comes next. Estimates are complimentary.

Discuss your project

Prepare for the next conversation.

Tell us what
you have in mind.

Complimentary estimates. A few details to start the conversation.

  1. Your project
  2. Location
  3. Contact

Start with your plans.