Design and Permit Drawings for Los Angeles Renovations
Aggregate Construction Group is a design and build contractor, which means the team drawing your renovation is the team that has to build it and stand behind the schedule. That changes what gets drawn. A designer who never carries construction risk can put a cantilevered island over a slab with no way to run the electrical, and nobody finds out until the plumber does. When the same firm owns both halves, the drawing gets tested against buildability before it reaches plan check.
Los Angeles adds a layer most cities do not. The same renovation on two houses a mile apart can follow completely different approval paths depending on the overlays sitting on each parcel. Before we design, we pull the zoning, the overlays, and the permit history on the property, the way we open every project as general contractors in Beverly Hills and throughout the county.
Zoning Overlays That Decide What You Can Actually Build
Base zoning sets height, setbacks, floor area, and lot coverage, but the overlays are what surprise people. A Historic Preservation Overlay Zone means exterior changes visible from the street go through a board review with its own design guidelines, and Los Angeles has dozens of them across neighborhoods people do not think of as historic. The Baseline Hillside Ordinance limits floor area and grading on hillside lots by slope, which reshapes additions all through the Santa Monica Mountains and the canyons. Coastal Zone parcels add Coastal Commission or local coastal program review on top of the city process. Specific plans and community design overlays add their own rules on top of that. We check all of this before schematic design, because finding an overlay after the drawings are done means paying for the drawings twice.
What a Complete Permit Set Contains
A permit set is more than a floor plan. Depending on scope it includes an as-built survey of existing conditions, demolition plans, proposed floor plans, elevations and sections, a door and window schedule, reflected ceiling and lighting plans, electrical and plumbing layouts, structural drawings and calculations stamped by an engineer where framing changes, and the Title 24 energy compliance documentation that LADBS requires at submittal. Interior work carries a finish and fixture schedule so the allowance in the contract maps to real products rather than a placeholder number. Renderings and walkthroughs sit alongside all of this to settle decisions early, since a change made on screen costs a conversation and the same change made after cabinets are ordered costs a change order. Cabinetry and millwork drawings feed straight into our carpentry shop.
Plan Check at LADBS and Why Sets Come Back
Plan check is a correction cycle, not a pass or fail gate, and almost every set comes back at least once. Corrections tend to cluster in predictable places: energy compliance documentation that does not match the drawings, structural details missing at a new opening, egress and emergency escape dimensions in bedrooms, ventilation for bathrooms and kitchens, smoke and carbon monoxide alarm locations throughout the dwelling rather than only in the work area, and in older houses the requirement to bring noncompliant plumbing fixtures up to water conserving standards. Projects submitted now are reviewed against the 2025 California Building Standards Code, Title 24, effective January 1, 2026. We respond to corrections ourselves rather than handing them back to the owner, and we design toward the common ones so the first response is usually the last.
Design-Build Compared With Hiring a Designer Separately
Hiring design and construction separately gives you an independent set of eyes on the contractor, and for some owners that is worth the friction. The trade-off is that when a detail cannot be built as drawn, the designer and the builder each have an interest in it being the other one’s problem, and the owner sits in the middle paying for the delay. Design-build removes that gap and makes one party accountable for the drawing, the number, and the schedule, which is why it suits renovations with structural changes, permit complexity, or a tight timeline. We work either way, including building from plans an outside architect has already produced. Design work here runs straight into the kitchen and bathroom scopes, and into ADU projects where the drawings carry the permit.
Working With Our Design Team
Aggregate Construction Group holds California contractor license number 1034714 and carries general liability and workers compensation coverage. Design is contracted in phases so you can see the feasibility findings and the schematic direction before committing to full construction documents. Request a walkthrough and we will confirm scope, timeline, and next steps within one business day.