ADU Construction in Claremont
Claremont ADUs with a roof sloped to send rain away from the main house and the footings, gutters sized to match, permitted after a house fire.
Rain that hits the roof of a Claremont backyard unit has to land somewhere, and we decide where before the roof shape is drawn. A pitch that drains toward the main house dumps water into any narrow strip between two foundations. We slope the roof toward open yard, size the gutter for the full plane and plan where each downspout lets go. On a cleared lot, the roofs of both buildings can be planned to work together.
Shape, slope and covering
A gable splits runoff between two eaves. A single-slope roof sends all of it to one edge, which simplifies the gutter but loads one downspout. We match the covering to the pitch, with shingles or tile on steeper planes and a membrane rated for low slopes where the roof flattens. Underlayment covers the whole deck, drip edge laps into the gutter so water cannot wick behind it, and step flashing sits at every wall where a porch or bump-out roof meets the siding.
Where the water goes after the gutter
Each downspout ends at a splash block, a buried drain line or a planted basin, chosen for the soil and the space. If the lot slopes toward a neighbor, the drainage is led along the property line so runoff stays on your side. The roof plan, the downspout points and the grading notes sit together in the permit set that Claremont reviews. Inspectors see the roof before it is covered and the drain lines before backfill, and each stage of the unit has its place in the written scope.
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ADU Construction in Claremont: questions
It can where Claremont permits the unit to be completed and occupied first. A dry, inspected roof over a finished small house gives you a place on the lot early, and we set its downspouts and drain lines so the main roof that follows can tie in.
A Claremont unit qualifies when it has no upper floor and encloses no more than 500 square feet. For a lot here we draw the roof plan and the site plan as a pair, so the downspout outlets and the setbacks read together. City fees are quoted on top of the package.
Start with the roof. If it sheds water cleanly and the rafters can take insulation and a new covering, a conversion has a sound top. We then test the slab and look at the walls, and set the price of converting it beside the price of a new unit.
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Plan your project in Claremont
Tell us about the property and what you have in mind. We reply with a written next step.