Additions and remodeling in Chatsworth, Los Angeles County

Room additions in Chatsworth

Chatsworth room additions handled like those in nearby Porter Ranch, Northridge and West Hills, with ember-resistant vents and a floor level that matches.

Tell us about the room you need

We read every request and reply by phone or email to set up a visit at the house. How we use your details.

To send, add what you are interested in, your first name and a phone number or an email.

Porter Ranch, Granada Hills, Northridge, Winnetka, Canoga Park and West Hills sit around Chatsworth, and a room addition in any of those places moves through our process in one order: measuring the house, drawing it with an engineer, plan review, then foundation, framing and finishes. Each of them is part of the City of Los Angeles, so LADBS is the reviewer throughout. Only the details of the parcel change from one address to the next.

Vents and eaves in a mapped fire area

Some Chatsworth parcels fall inside mapped fire hazard zones, and an addition on one of those lots may face ember-resistance rules. Embers enter a house most easily through attic and crawl space vents and through gaps under the eaves. On a mapped parcel, the new vents are listed as ember and flame resistant or carry fine metal mesh, and the eaves are boxed in with noncombustible soffits. The roof covering is Class A. Any deck or porch attached to the new room is built from materials approved for these zones. We confirm the parcel's status early so these items are drawn into the plan set.

Matching the floor height

A step down into a new room is easy to trip on for a toddler or a grandparent carrying laundry. If the house sits on a raised wood floor, a slab poured for the addition would land lower than the rooms it joins. To keep everything level, the addition can be framed on a raised foundation with its own crawl space, or the slab can be set higher on a taller stem wall and footing. We measure the existing floor height on the first visit and choose the method before the foundation is drawn, so the doorway between old and new rooms has no step at all.

Need more room in Chatsworth?

Send the address and tell us who the space is for. We will check the local rules and set up a visit.