New Construction in Northridge, Measured From the Street to the Pad
New Construction in Northridge that starts with the pad height against the street, which sets sewer fall, driveway grade and the garage floor.
The first measurement we take on a Northridge lot is the height of the pad against the street, at the curb and at the sewer cleanout. That number tells us whether the new plumbing can drain to the main by gravity, how steep the driveway will run and whether the garage floor sits above or below the street. A transit and a rod give a quick answer, and the civil engineer confirms it later.
Sewer fall and the lowest drain
Plumbing code sets a minimum slope for a building drain, so the lowest fixture in the house has to sit high enough above the sewer main to reach it. If the pad sits lower than the street, a sewage ejector pump may be needed for the lower floor, with its own power, alarm and upkeep. If it is above, the lateral may run steep enough to need cleanouts at changes in direction. We get the depth of the main from the city's sewer records and check it against our reading at the curb.
Driveway grade and the garage floor
A driveway that climbs or drops too sharply scrapes cars and fails the transition limits the city sets at the apron. The difference between curb and garage floor sets how long the ramp has to be, and that length can push the garage deeper into the lot or call for a retaining wall alongside it. Water is the other half. A garage below the street needs a trench drain at its door and somewhere for that water to go. Those items land in the site work section of the quote, priced before framing starts.
About our new construction workEverything we build in Northridge
New Construction in Northridge: questions
Surveys come first, with property lines, contours, the curb and the sewer cleanout tied into one drawing. A soils report built on borings comes next. If the lot sits low against the street, ask the civil engineer for a drainage plan early, because it may decide where the garage and the lowest bathroom can go.
Height against the street is part of access. A pad below the curb lets trucks back down and pour, while a pad well above it may need a pump and a lift for every heavy delivery. Those differences are priced as equipment lines, kept apart from the house, so you can see what the lot adds.
We can, and the civil sheets get read first. A grading plan that shows the pad height, the sewer connection and the driveway profile lets site work be priced with real quantities. If those sheets are missing, site work goes in as an allowance until the civil engineer completes them.
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