ADU Construction in Tarzana
Tarzana ADUs that start with laser level readings at each corner of the footprint, setting slab height, footing depth and drainage. Aspenwell Construction.
Laser readings taken from the back door are the first numbers we collect on a Tarzana lot. Readings at each corner of the planned unit show how far the ground falls or rises from the house, and that sets the slab height, the footing depths and the way water will drain. A yard that looks flat can still hide a few inches of fall, and those inches change the foundation drawing.
What the readings decide
When the corners land within a narrow range, one slab with a thickened rim works and the unit floor can line up with the main house threshold. A larger spread calls for a stepped footing, where the bottom of the footing drops in stages so it keeps a steady depth below grade along its length. If the yard falls toward the house, it gets reshaped so water runs past the unit and out to the street, and that grading appears on the drawings LADBS reviews.
Floor height and clearance
An ADU floor has to sit a set distance above the soil around it so siding and framing stay dry, and the code fixes that clearance. The laser readings show whether meeting it is easy or calls for a raised edge. For a unit meant to be step-free, we put the floor as low as the clearance allows and slope the walk to the door gently. Those same inches of height change how far each downspout must carry roof water before it reaches open ground.
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ADU Construction in Tarzana: questions
Tarzana units on level, firm soil take a reinforced slab with a deepened rim. Where the laser readings show the yard falling across the footprint, the footing steps down in stages, or a raised floor on concrete stem walls takes up the difference. The engineer picks between them once grading and soil are known.
Possibly, provided a true footing of useful depth runs beneath each wall the engineer marks for bracing. We dig at a corner and run the same laser across the floor, since a garage slab that tilts toward the door may need leveling for a living space. Thin or broken edges get new footing sections.
Tarzana units qualify while they hold to a single floor and stay at or below 500 square feet, whatever form the unit takes. Grading notes from the laser survey go onto the site plan. Something bigger is weighed against the lot before anyone sets a figure.
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Describe the house and what it needs. We look at the structure first and send the quote in writing.