Claremont ADU Construction Near the Property Lines

Claremont ADU construction drawn so walls near the property lines pass plan review while the yard side opens wide to light and a patio. Palmcrest Contractors.

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Property lines are what a Claremont plan reviewer reads most closely on a backyard unit: how far each new wall stands from the fence, and how far from the main house. Under state ADU law a city may ask for no more than 4 feet at the side and rear, so our site plan dimensions those gaps, the roof overhangs and any patio cover to scale.

What the reviewer checks along the fence

A wall closer than 5 feet to a property line falls under the fire separation rules in the residential code. It needs a rated assembly, its eave has to be protected or cut back, and the glass it can carry is limited or ruled out. The reviewer checks each of those against the site plan and the wall sections. Putting the unit tight to a line frees yard space, and that trade is worth weighing early, because it moves most of the glass to the other faces.

Opening the yard side wide

With the fence side kept mostly solid, the face toward the open yard can take a wide slider or folding glass wall onto a patio set flush with the floor. Clerestory windows high on the near-line wall still bring light in where the rules allow them. We draw the plans, file them with the city and answer the corrections. The drawing set carries its own fixed price, and construction is priced separately once we have walked the Claremont lot and seen the utilities.

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