ADU Construction in West Hollywood, Flat Roofs Drained Right
West Hollywood ADU construction: Cedarline Design Build drains flat and low roofs properly, compares the four ADU types and handles city plan check.
Parapets on a flat-roofed West Hollywood ADU hold water like a tray unless the scuppers are sized and placed right. We slope the deck with tapered insulation toward each outlet, set an overflow scupper higher than the primary one, and run the membrane up the parapet wall and over its cap. Leaders carry the water down the face of the unit into a drain line or onto a splash pad, clear of the property line.
The four ADU types on a tight urban lot
Urban parcels leave little yard, so the comparison comes down to square footage. A detached unit needs room past the side and rear setbacks and a clear path for utilities. An attached unit grows off the house and uses its existing systems. A garage conversion keeps the building you already have, which on a small lot can be the deciding factor. A JADU fits within the house and adds no footprint at all. Laying all four side by side shows which gives the most living space for the lot.
Roof details the inspector will see
Flat and low-slope roofs are judged in the field. The roofing inspector looks at the membrane laps, the flashing where the roof meets a wall, the scupper sleeves and the clearance around any rooftop unit for heating and cooling. Each detail is easiest to inspect while it is still open, so covering work waits until it has been seen. A skylight curb gets the same scrutiny as the parapet. With roofing approved and the other trades signed off, the City of West Hollywood issues the final and the unit can be occupied.
ADU Construction in West Hollywood: common questions
Small lots lean toward types that add little footprint. A garage conversion or a JADU inside the house can work where the yard is shallow. A new detached unit fits when the yard has clear space beyond the setbacks. An attached unit is an option if the house can grow at the back. We check the survey and confirm on site.
West Hollywood handles plan check through its city building and safety division, reviewing the set for state ADU law and West Hollywood's own code. We file, answer comments and resubmit. For a West Hollywood unit with a flat roof, the roof plan shows the slope to each scupper and the overflow, and the reviewer looks for both.
Yes. State law says West Hollywood cannot require you to replace the spaces a garage conversion removes. Openings in a garage wall close to the property line may be limited for fire reasons, so windows and doors are placed where the code permits them.
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