Extra bedrooms, expanded living areas, second stories. Additions designed to blend with your existing home.
Sometimes your home just needs more space. Maybe the family has grown, maybe you need a home office with a real door, or maybe you have been wanting that primary suite on the ground floor for years. A room addition gives you the space you need without the hassle and expense of moving.
We build all types of room additions across the Bay Area. Ground-floor additions, second-story additions, bump-outs, and attached spaces. The key to a great addition is making it look and feel like it was always part of the house. That means matching rooflines, siding, window styles, and interior finishes. We pay close attention to these details.
Additions also require serious structural consideration. Adding to a home means tying into existing foundations, matching or upgrading framing, and ensuring the new and old sections of the house work together structurally. We bring in structural engineers when needed and make sure everything is built to last.
When you hire Magana's for your room additions project, here is what you get:
Room additions in the Bay Area typically take 3 to 6 months from start of construction. Second-story additions tend to fall on the longer end of that range. A single-room ground-floor addition can sometimes be completed in 3 to 4 months. The permit phase adds 1 to 3 months depending on your city.
Timelines vary based on permit processing times (which differ by city in the Bay Area), project complexity, material availability, and scope changes. We will give you a realistic timeline upfront and keep you updated throughout the process.
Room additions require a building permit in all Bay Area cities. If you are adding square footage, you may also need zoning approval to ensure you meet lot coverage, setback, and FAR (floor area ratio) requirements. We handle all of this for you.
A room addition that looks like an afterthought drags down the entire house. Rooflines, siding, windows, and trim should all match or complement the existing structure.
New foundations settle differently than old ones. If the connection between old and new is not engineered properly, you will get cracks and separation. We make sure the structural tie-in is done right.
Your existing heating and cooling system may not be sized to handle the additional space. We assess your HVAC capacity and recommend upgrades if needed before you end up with a hot room in summer.
No pressure, no obligation. Just a conversation about what you want to build and how we can help.
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