What kind of foundation does an ADU in North Hollywood sit on?

On level, firm ground in North Hollywood, the engineer most often draws a slab whose rim is trenched deeper and laced with steel. A raised wood floor on short concrete walls is another route when drain lines need to stay reachable. A light roof keeps those footings modest, one reason we settle the roofing early.

Can a garage in North Hollywood be converted without new footings?

It depends on the concrete under the walls and on what the new roof will weigh. A garage with a real perimeter footing can sometimes take braced panels with added anchors. Where the walls stand on a thin curb, the engineer adds footing under every wall picked to brace the room.

Which ADUs in North Hollywood does the plans package cover?

Covered: a North Hollywood unit on one level whose floor area tops out at 500 square feet, whether it rises alone in the yard, bonds to the house, or fills a garage. On these lots the framing sheet shows the roof slope and gutter run alongside the rafters. A two-story or larger plan is scoped separately once we see the lot.

ADU Construction in North Hollywood

North Hollywood ADUs with a light roof that eases the load on braced walls and a single slope that sends rain to one planned gutter. Aspenwell Construction.

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Roof weight on a North Hollywood ADU is felt by the braced walls whenever the ground moves, because every pound overhead pushes sideways in a quake. So the roof is chosen as a pair of decisions: a covering light enough to keep that push modest, and a pitch that carries rain to one planned edge. A single slope falling toward the open yard handles both, with a gutter along its low side.

Keeping the weight up top modest

Clay or concrete tile weighs far more per square foot than composition shingles or standing seam metal. On a small unit that gap changes the shear wall nailing, the hold-down sizes and sometimes the footing beneath each hold-down. We fix the roofing early and let the engineer size the bracing from it. A light roof also leaves margin for a solar array later, and the rafters are checked for that added load during framing design. Plywood sheathing nailed on a tight schedule then lets the whole roof act as one plate tying the walls together.

Where the gutter lets go

A gutter on the low edge gathers what the roof sheds, and a downspout at each end lowers it to the ground. From there the water goes to a splash block tipped toward open yard, a pipe into a planted swale, or a gravel pit set well back from the slab. Outlets are placed so they never cross the walk to the unit door and never point at a neighboring lot. LADBS, the City of Los Angeles building department, reads that drainage note on the site plan next to the roof framing.

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