Home Addition in Montara

Why Expand Your Montara Home

For Montara homeowners who love their neighborhood but need more space, a home addition is often more practical than buying a larger home. You keep your location, your neighbors, and your established landscaping. Coastal construction requires salt-air-resistant materials, wind-rated designs, and compliance with the Local Coastal Program.

Custom Home designs and builds home additions with the same two-phase process we use for custom homes. You see the complete addition in 3D and receive itemized pricing before construction begins.

Types of Home Additions We Build in Montara

Second-Story Additions

Double your living space by building up rather than out. Second-story additions are ideal when lot coverage limits prevent ground-floor expansion. Custom Home’s structural engineers evaluate your existing foundation to determine what reinforcement is needed.

Ground-Floor Room Additions

Extend your home’s footprint with new bedrooms, family rooms, or home offices. Ground-floor additions integrate with your existing layout and maintain single-level living, which is especially valued in Montara.

Bump-Outs and Extensions

Smaller expansions that make a significant difference: extend your kitchen, enlarge a bathroom, or add a sunroom. Bump-outs typically cost less and complete faster than full additions.

Structural Considerations for Montara Additions

Home additions in Montara require careful structural planning to ensure the new space integrates safely with the existing structure. Custom Home’s engineering team handles foundation evaluation, load-bearing wall modifications, and structural design. Whether you are adding a second story or expanding your footprint, structural engineering is included in our Phase 1 design process.

Montara Home Addition Permits

As an unincorporated community, Montara building permits are issued through San Mateo County’s Planning and Building Department. Projects in the coastal zone require a Coastal Development Permit in addition to standard building permits. Plan review timelines vary but typically take 8-12 weeks for custom residential projects. Custom Home manages the county permitting process on behalf of our clients, coordinating all required reviews and inspections.

Custom Home manages the entire addition permitting process, including structural engineering review, plan submittal, and inspection coordination. Our experience with Montara’s requirements helps keep the approval process on track.