ADUs and additions, West Covina, Los Angeles County
Home Additions and ADUs in West Covina
When a West Covina house needs a bedroom first, the home addition comes before the ADU. How we plan both so a backyard unit still fits beside the new rooms.
Adding rooms to the house comes first on a West Covina lot when the main house is short a bedroom or bath and a separate unit is also in the plan for later. Adding to the house first fixes how much of the yard stays open, so we sketch the addition and the four ADU types together and confirm that whichever unit type is chosen later still has room beside the new rooms.
Planning both at once
An addition pushes the house toward the rear or side lot lines, and every foot it takes is space a backyard unit can no longer use. We draw the addition with its future neighbor in mind, keeping the required gap between structures and a clear walkway to the unit's door. If a JADU is the goal, the addition can be laid out so a bedroom with its own exterior entrance is ready to become one. The sewer and electrical routes for both projects are set on the same drawing so neither blocks the other.
Panel, plan check and inland exposure
Two projects on one parcel draw on one electrical service, so the load calculation counts the addition and the later unit together, and a service upgrade, if needed, is sized once. New exterior walls get insulation and window glass suited to an inland suburban lot with strong sun. The City of West Covina reviews the addition plans and inspects the work, and a separate permit covers the ADU when its turn comes. Showing the future unit on the first site plan lets the examiner see both projects together.
What we build in West Covina
Second units and room additions lead, with the rest of our services available on the same lot.
Planning a unit in West Covina?
Send the address. We check which ADU types the lot allows and reply with the next step.