HOME ADDITIONS
A well designed addition should feel like it was always part of the home. We design additions that integrate seamlessly with your existing architecture while improving layout and adding meaningful square footage new bedrooms, expanded kitchens, family rooms, primary suites, or second-story additions.
We handle the early feasibility work setbacks, lot coverage, height limits, and zoning requirements then shape the design around what’s allowed and what you want. The end result is an addition that looks intentional, functions better, and supports long-term property value.
What’s included: feasibility review, design options and planning, exterior integration, permit-ready drawings, and coordination with structural/other consultants. Construction and contractor coordination.
What you get: a cohesive addition that meets code, fits the neighborhood context, and is documented clearly for permitting and construction.
A home addition is one of the smartest ways to improve your lifestyle without leaving the neighborhood you love. It gives you the space you actually need more bedrooms, a larger kitchen, a home office while increasing functionality, long-term flexibility, and overall property value. Done right, an addition pays off twice: better daily living now, and stronger resale appeal later.
Second Story Additions
Add major square footage without expanding the footprint ideal for growing families, primary suites, or creating a separate upper level living zone. We focus on structural feasibility, stair placement, privacy, and a clean exterior integration that looks original to the home.
ADUs
Detached or garage conversion ADUs provide flexible living space for rental income, extended family, guests, or a home office. We design for privacy, efficient layouts, and code compliance while maximizing the value of the property.
Bathroom Additions
Add a new bath where it improves daily flow primary suite baths, guest baths, powder rooms, or adding a second bath to reduce household congestion. We plan efficient plumbing routes, ventilation, and layouts that maximize comfort in compact footprints.
Bedroom Additions
Create extra bedrooms, a new primary suite, or a guest room with an ensuite designed to feel seamless with the existing home. We prioritize natural light, storage, circulation, and a layout that supports long-term comfort and resale value.
Kitchen & Dining Expansions
Open up the heart of the home with more space for cooking, storage, and gathering. These additions often include enlarging the kitchen, adding a pantry, improving indoor outdoor connection, and creating a better dining layout with more natural light.
Home Office Additions
Create a dedicated, quiet workspace that improves productivity and keeps work separate from daily living. We design offices with the right daylight, acoustics, built-in storage, and flexible layout whether it’s a private standalone office, or an office that can later convert to a guest room.
What’s Needed for a Home Addition?
Site + zoning review: setbacks, height limits, lot coverage/FAR, parking, and any overlays (coastal, hillside, HOA, etc.).
Existing conditions / as-builts: accurate measurements and base plans of the current home (we can create these if you don’t have plans).
Design + space planning: layout options, exterior integration, window/roof alignment, and indoor–outdoor flow.
Structural engineering: required for new framing, beams, foundations, second-story loads, and any wall removals.
Energy + code compliance: Title 24 and CALGreen requirements (and often HVAC impacts, insulation, glazing, etc.).
Permit-ready drawings + city submittal: a complete plan set to submit for plan check and approval.
Contractor pricing + construction planning: bids, schedule planning, and coordination for a smooth build.
Typical Construction Cost Ranges (Southern California in 2026)
Basic room additions: $400–$600 per SF
(Simple layout, standard finishes, minimal structural complexity.)Mid-range additions: $500–$750 per SF
(More custom work, upgraded finishes, larger openings, moderate structural scope.)Second-floor additions (typical): $600–$900 per SF
(Structural upgrades, stairs, roof tie-ins, more complexity and coordination.)Luxury / high-end additions: $800–$1,200+ per SF
(Premium materials, custom detailing, high-end glazing/doors, major reconfiguration.)
