Answers for projects already in motion.

A design-build firm handles both architectural design and construction under one contract and one point of contact. At AS Design Build, the same licensed architect who designs your project also holds a general contractor license and manages the construction. This eliminates the most common sources of project problems: miscommunication between separate architect and contractor teams, designs that are expensive or impractical to build, and finger-pointing when issues arise on site. You get one contract, one responsible party, and zero communication gaps between design intent and built result.

With separate firms, the architect designs without full knowledge of current construction costs, the contractor bids on plans they didn't create and may find issues, and when problems arise on-site, each firm points to the other. With a design-build firm like AS Design Build, the architect designs with real construction cost knowledge built in, the plans are buildable from day one, change orders are minimized, and on-site issues are resolved immediately by the person who designed the space. You also get one contract and one point of contact instead of managing two separate professional relationships.

In California, most residential projects can legally be designed by either a licensed architect or a licensed contractor. The practical difference is in plan check speed and construction quality. Architect-prepared plans tend to pass plan check faster with fewer correction cycles because code compliance, structural coordination, and detailing are resolved during design — not discovered during construction. At AS Design Build, every project is designed by a California-licensed architect (License #C-42133) and built under a B-General Building Contractor license (CSLB #1152969). The result is plans that are both code-compliant and buildable from day one.

Any renovation involving structural changes, electrical work, plumbing modifications, or changes to the building envelope requires a building permit. This includes kitchen and bathroom remodels that relocate plumbing or electrical, room additions, load-bearing wall removals, window and door changes in exterior walls, and HVAC system modifications. Cosmetic work like painting, flooring, and cabinet refacing typically does not require permits. Working without required permits creates serious problems — unpermitted work can trigger issues during resale, insurance claims, or future permit applications. AS Design Build handles the entire permit process: architectural plans, application submittal, plan check responses, and construction inspections.

A wall is load-bearing if it carries structural loads from the roof, upper floors, or ceiling joists down to the foundation. Common indicators include walls running perpendicular to ceiling joists, walls stacked directly above each other on multi-story homes, and walls near the center of the house. However, visual inspection alone is not reliable — the only way to confirm is through structural analysis, which requires reviewing original plans or opening up the ceiling to inspect joist bearing conditions. If the wall is load-bearing, it can still be removed — it requires an engineered beam (LVL, steel, or glulam) sized to carry the transferred loads, with proper posts and connections down to the foundation. AS Design Build handles the architectural design, structural engineering coordination, permit, and construction for wall removal projects as a single scope of work.

In 2026, a kitchen remodel in Orange County or LA typically ranges from $45,000 to $120,000+ depending on scope and finishes. A full gut renovation with layout changes, new cabinetry, countertops, appliances, plumbing fixtures, electrical, and flooring falls on the higher end. A bathroom remodel ranges from $25,000 to $65,000+ depending on size and complexity — fixture relocations, waterproofing, tile work, and ventilation all factor in. These ranges assume permitted work with licensed trades. AS Design Build provides itemized cost breakdowns with an allowance schedule for owner-selected items like fixtures, tile, and appliances, so you see exactly how your selections affect the total budget.

Yes, room additions are one of the most effective ways to increase livable space and property value. The key constraints are zoning setbacks (how close you can build to property lines), lot coverage limits, floor area ratio (FAR), and height limits — all of which vary by city and zoning designation. Other factors include matching the new structure to the existing roof, tying into existing foundations, and connecting to existing MEP systems. A properly designed addition should feel like it was always part of the house, not an afterthought. AS Design Build evaluates all zoning and structural constraints during the design phase, so there are no surprises during plan check or construction.

In 2026, ADU costs typically range from $150,000 to $400,000+ depending on type and scope. Garage conversions run $150,000 to $250,000 since the shell already exists. Detached new-construction ADUs range from $225,000 to $400,000+ depending on size, site conditions, and finish level. These figures include design, permits, and construction. Key cost drivers include utility connection distances, foundation requirements, fire-rated wall assemblies, and finish selections. AS Design Build provides itemized cost estimates broken down by trade during the pre-construction phase — before any contract is signed — so you know exactly where your budget is going.

A garage conversion reuses the existing structure — you're adding insulation, interior framing, MEP systems, and finishes within the existing footprint. It's faster and less expensive, but the layout is constrained by the existing shell dimensions. A detached ADU is a new standalone structure built from the ground up with full design flexibility — custom floor plan, ceiling heights, window placement — but requires foundation, new utility runs, and full structural framing. Both require building permits and must comply with California ADU laws, CBC, and local zoning. If your garage is structurally sound and the footprint works for your program, conversion is typically the better value. If you need a specific layout or larger unit, detached is the way to go.

The typical ADU timeline is 10 to 18 months total. Design and engineering takes 4 to 8 weeks. Permitting takes 6 to 16 weeks — California law requires cities to act on ADU permits within 60 days of a complete application, but plan check corrections can extend this. Construction takes 4 to 8 months depending on scope. The most common delays are incomplete permit submittals and plan check corrections — both of which AS Design Build minimizes by preparing thorough, code-compliant plans from the start. As a design-build firm, the same team handles all three phases, which eliminates the handoff gaps that occur when design and construction are managed by different companies.

Under current California law, most single-family residential lots qualify for at least one ADU. Key factors include lot size, existing structures, setback requirements, and utility access. California state law overrides many local restrictions that previously prevented ADU construction — even properties in HOA communities may be eligible. AS Design Build begins every ADU project with a site feasibility assessment that covers zoning compliance, maximum allowable size, setback requirements, utility connection routes, and any site-specific constraints like fire hazard severity zones or flood areas. This assessment gives you a clear picture of what is possible on your specific property before committing to design.

A tenant improvement is the construction work required to customize a leased commercial space for a specific tenant's operations. This includes building or modifying interior walls and offices, adding or upgrading restrooms and breakrooms, installing specialty electrical or data infrastructure, updating HVAC distribution, and ensuring ADA and CBC compliance. You need a TI whenever you're moving into a new space, expanding within your current space, or changing the use type — for example, converting warehouse area to office. TI projects require building permits and must comply with the California Building Code, fire and life safety codes, CalGreen requirements, and ADA/accessibility standards. AS Design Build handles the full scope from space planning through permit and construction.

Commercial TI costs in Southern California vary based on scope and use type. A basic office build-out with standard partitions, ceiling grid, lighting, and HVAC modifications typically runs $60 to $120 per square foot. More complex build-outs involving restroom additions, commercial kitchen or breakroom facilities, specialized MEP systems, or high-end finishes can range from $120 to $200+ per square foot. Warehouse-to-office conversions and spaces requiring significant plumbing or structural work tend toward the higher end. These figures include design, permits, and construction. AS Design Build provides detailed cost estimates early in the process — which is especially useful when negotiating TI allowances with your landlord, since knowing actual costs gives you leverage in lease negotiations.

A TI allowance is the dollar amount your landlord contributes toward build-out, typically expressed as a per-square-foot figure. The key is understanding whether the allowance covers your actual build-out needs before you sign the lease. AS Design Build can provide a preliminary cost estimate based on your space plan and program requirements during the lease negotiation phase — before you commit. This gives you a realistic picture of the gap between the landlord's allowance and the actual construction cost, so you can negotiate a higher allowance or adjust your scope accordingly. Once the lease is signed, AS Design Build manages the full design-build process: architectural plans, permit, and construction — with one contract and one point of contact throughout.

Every commercial TI project must comply with the California Building Code (CBC), which includes California's accessibility standards (exceeding federal ADA requirements). Key requirements include accessible restroom layouts with proper clearances, door widths, and grab bar placement; accessible path of travel from the public way to the tenant space; compliant signage, hardware, and threshold heights; adequate ventilation rates per CBC mechanical code; and fire and life safety requirements including occupancy loads, egress widths, and fire-rated separations. The specific requirements depend on the occupancy classification of your space and the scope of work. AS Design Build addresses all code and accessibility requirements during the design phase and documents them on the permit drawings — reducing the likelihood of plan check corrections and construction-phase surprises.

Use the Contractors State License Board license lookup at cslb.ca.gov or call 800-321-CSLB (2752). Anyone performing home improvement work valued at $1,000 or more must be licensed by CSLB. Confirm the license is active and that its classification fits the work. You can look up our license, CSLB #1152969 (B - General Building Contractor).

Architects are licensed by the California Architects Board, and license status can be verified through the State of California Department of Consumer Affairs license search. Our principal's architect license number is C-42133.

For a home improvement contract in California, the down payment cannot exceed $1,000 or 10% of the contract price, whichever is less. After that, payments should follow a written schedule tied to work completed.

Yes. California gives homeowners three business days to cancel a home improvement contract, five business days if you are 65 or older, and seven business days if your home was damaged in a declared emergency. The contractor must give you written notice of this right.

It should be in writing and signed before work starts, and include a detailed description of the work and materials, start and completion dates, a schedule of payments, notice of your right to cancel, a notice about mechanics liens and how to avoid them, CSLB contact information, and notice that you can require a performance and payment bond. Any change to the work should be a written change order.

AS Design Build is based in Fullerton and works primarily in Fullerton and nearby North Orange County cities — Brea, Placentia, Yorba Linda, La Habra, Buena Park, and Anaheim. We also take projects elsewhere in Orange County and in Los Angeles County, including Arcadia, South Pasadena, Altadena, and Pasadena. Consultations are available in English and Korean.