ADU Construction in Granada Hills
Granada Hills ADUs on a raised concrete curb that keeps siding off the soil, holds the anchors and meets ember rules where mapped. Aspenwell Construction.
A concrete curb poured with the foundation and standing several inches above finished grade is the material choice that guards the base of a Granada Hills ADU. Siding and sill plates stay clear of damp soil, termites lose an easy path in, and dry leaves blown against the wall pile up on concrete that cannot burn. That same curb holds the anchor bolts, so it belongs to the seismic design too.
Fire zones and the base of the wall
Granada Hills includes land within mapped fire hazard zones, and building on a parcel there brings ember-resistance requirements. The lowest stretch of an exterior wall gets attention because blown embers and leaf litter collect there. A concrete curb, ignition-resistant siding above it, and a strip of gravel or bare ground along the wall in place of bark mulch all help. The parcel status comes from LADBS by address, and the drawings carry matching notes for the siding, vents and eaves.
Bolts cast into the curb
Anchor bolts set in the curb tie the sill plate down, and hold-down rods mark the ends of each braced wall. Both are placed in the forms and checked by the inspector before the pour, because moving one later means drilling and epoxy. The curb goes in monolithic with the slab, leaving no cold joint for water to find. A treated sill on a foam gasket sits on top, and the siding starts above the concrete so its lower edge stays dry.
About our adu construction serviceEverything we do in Granada Hills
ADU Construction in Granada Hills: questions
A Granada Hills unit typically sits on a reinforced slab with deepened edges and a raised concrete curb along its walls. The curb carries the anchors and keeps siding off the soil. Footing depth and steel come from the engineer, and a soils report can push them deeper.
It may. The existing footing is exposed at a corner to check its depth and condition. If it holds, new bolts and hold-downs go in, and a curb can be added along the inside to lift the new sill. A short or cracked one is replaced in sections before framing.
One-story units up to 500 square feet fall under the package in Granada Hills, as detached, attached or converted garage units. The structural sheet shows the curb, the anchor spacing and the ember notes where the parcel is mapped. Larger designs need their own review.
ADU Construction in other cities
More we build in Granada Hills
Book an inspection in Granada Hills
Describe the house and what it needs. We look at the structure first and send the quote in writing.