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Los Angeles residential design + build

Home Additions in Los Angeles

Extra bedrooms, larger living areas, and additions that connect to your home.

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Home additions

Adding space to your existing home

An addition should solve the space problem without making the rest of the house harder to use. We look at the new rooms, how they connect to the existing layout, and the structural and utility work involved.

Is this the right project for your property?

Families who need an extra bedroom, a larger living area, a primary suite, or a second-story addition.

What affects the budget?

The connection to the existing house is a major part of an addition. Structural work, roof changes, new bathrooms, utility capacity, finish matching, and temporary protection affect the budget alongside the new square footage. Phasing and access also matter if part of the home remains occupied.

What to bring to the first conversation

Tell us what is not working in the current home and which rooms you want to preserve. Existing floor plans, photos, and your preferred timing help us discuss sensible layouts and what needs further design or engineering review.

Other options to consider

An addition expands the main home. An ADU creates a separate dwelling arrangement. If the goal is independent living for relatives or a potential tenant, compare privacy, utilities, and access before choosing a direction.

Explore Whole-home renovations ↗

Comparing estimates

Check what the price includes.

A useful home additions comparison starts with the same scope. Use these questions when reviewing an estimate.

Home additions proposal comparison
Scope areaWhat to clarifyAsk this question
Connection to the houseFoundations, structural tie-ins, roof transitions, and weather protection.How are existing-condition assumptions documented?
Rooms & systemsLayout, heating and cooling, electrical, plumbing, windows, and finishes.Which existing systems are included in the scope?
Living through the workTemporary access, dust protection, utility interruptions, and phasing.What can remain occupied and what needs a separate plan?
Completion & changesFinish matching, restoration, inspections, and handoff.How are additional work and outstanding items agreed and recorded?

Bring your drawings or an outline of your plans. We can discuss what is defined and what needs further review.

Discuss my project scope

Project checklist

Not sure where to start?

Pick the project and where you are with it. We'll show you a few things to have ready before we talk.

You can use this checklist without filling out the contact form.

Read about Home additions

Home additions / Exploring options

Start with what you need.

You do not need finished plans to have a useful first conversation. A few details about the property and your goals will help.

  1. Have the property address and a few photos ready.
  2. Think about who will use the space and what matters most to them.
  3. Make a short list of questions about the layout, budget, or timing.
Property details to discuss
  • The room or function your home is missing
  • How the addition connects to existing circulation
  • Foundation, roof, and utility tie-ins
  • Construction access and living arrangements
Talk to us about this project

Before you begin

Common questions.

Do you build first floor and second story additions?

We evaluate room additions and second story expansions based on the existing structure, lot, project goals, and local requirements.

Can we stay in the home during construction?

That depends on the project scope, utility interruptions, access, and safety. We discuss phasing and occupancy expectations during planning.

Can you match the existing home?

The design process considers roof lines, exterior materials, windows, circulation, and interior finishes so the new work relates to the original home.

What can affect an addition timeline?

Design revisions, engineering, approvals, material lead times, weather, existing conditions, and inspections can affect the schedule. The construction schedule should be developed after the scope and approval path are clearer.

Do we need to move out?

Not in every case. Occupancy depends on safety, access, utility interruptions, dust control, and the extent of work. Agree on a realistic plan before construction starts.

Get in touch

What are you planning?

Tell us about your home, site improvements, or civil construction scope. We’ll discuss project fit, the information needed, and whether an on-site consultation is the right next step.

626-429-1441

No finished plans needed to start. No obligation to proceed.

Free initial consultation

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