ADU Construction in La Habra Heights, Probed Before Poured
La Habra Heights ADUs that start with probe readings at each footing corner, so the foundation reaches firm native soil before any framing begins.
Probe readings at each corner of the planned footprint open our work on a La Habra Heights lot. How far the rod sinks before it stops tells us where firm bearing starts and whether the top layer is loose fill. If the probe meets fill or soft clay, a soils engineer digs test pits and sets a footing depth that reaches undisturbed ground, which is where an ADU's weight and its seismic load belong.
Fill, cut and the footing depth
If the lot slopes, the pad for a backyard unit may sit partly on cut ground and partly on fill placed to level it. Those two soils settle at different rates, so a footing that crosses from one to the other can crack along the line between them. The soils engineer may call for over-excavation and recompaction under the whole pad, or footings deepened through the fill into native soil. Compaction tests taken during grading confirm the result, and those reports go to the building department with the plans.
Measuring the house and the yard together
Beyond the soil, our tape covers the distances the plans depend on: the gap to the main house, the side and rear setbacks and the route a drain will take. We also look at the main house foundation wherever it shows, because a new utility trench may pass close to it. Cracks or a tilted sill there point to settlement that the new design should avoid repeating. Each reading goes onto the site plan, so the reviewer, the engineer and the builder all work from the same numbers.
About our adu construction serviceEverything we do in La Habra Heights
ADU Construction in La Habra Heights: questions
On firm native soil, a reinforced slab poured with a deepened perimeter footing. Where fill turns up, the footings go deeper to reach undisturbed ground or bear on recompacted soil the engineer has approved. If the lot slopes, stepped footings or a raised floor on posts may carry the unit. The soils report decides which, and the anchor bolt layout follows from it.
Our test hole at the garage wall answers it. We measure the footing and check whether it bears on firm soil or on fill. A footing that is deep enough, reinforced and resting on good ground keeps its job, with new anchors and bracing added. One sitting on loose fill or measuring too shallow gets new sections underneath.
One story and 500 square feet of floor space are the two limits for a La Habra Heights unit under the package, detached, attached or converted. Probe locations and any grading the soils engineer requires get recorded on the site plan, the sheet that tells this lot's story. Going past one story or that size means a separate written quote once the parcel has been reviewed.
ADU Construction in other cities
More we build in La Habra Heights
Book an inspection in La Habra Heights
Describe the house and what it needs. We look at the structure first and send the quote in writing.