ADU Design
Detached ADU plans, garage conversions, and full ADU design, starting with a read of your lot.
View ADU Design →Design 1 Studio · Services
Services
Design and Permits
Garage Conversion ADUs
The shortest route to a legal unit on most lots.
View Garage Conversion ADUs →Pre-Approved ADU Plans
The plan is approved. Your lot is not.
View Pre-Approved ADU Plans →Home Additions and Second Stories
A new room changes the whole house.
View Home Additions and Second Stories →Custom Homes
The site designs the house.
View Custom Homes →Duplexes, Triplexes and Fourplexes
The label decides the approval.
View Duplexes, Triplexes and Fourplexes →SB 9 Design
Two homes on one lot, by right.
View SB 9 Design →Eaton Fire Rebuilds
Like-for-like or a changed design, through the County to permit.
View Eaton Fire Rebuilds →Building Permit Plans
Construction drawings and permit-ready plans for homes, ADUs, and additions.
View Building Permit Plans →Plan Check Corrections
Plans rejected or stuck in corrections? We find why plans stall and support plan check through issuance.
View Plan Check Corrections →Plan Check Correction Takeover
How stalled plan checks get moving again, and what to ask before hiring a takeover firm.
View Plan Check Correction Takeover →Plan Check Advocacy
Corrections checked against the code, answered in writing, and taken to HCD when a city will not follow state ADU law.
View Plan Check Advocacy →Legalize an Unpermitted Addition
As-built documentation, code compliance analysis, and legalization plans for unpermitted work.
View Legalize an Unpermitted Addition →Hillside Home Design
Slope conditions, grading code, retaining walls, and hillside development standards.
View Hillside Home Design →Feasibility Review
A feasibility review puts the answer first.
View Feasibility Review →Discretionary Review
Design for projects that need discretionary review: HPOZs, specific plans, hillside ordinances, historic commissions, and scenic corridors.
View Discretionary Review →LADBS Zoning Code Decoded
Twelve zoning concepts that cause most LADBS plan check friction, written for owners.
View LADBS Zoning Code Decoded →Review Areas
Review Areas and Overlays
Baseline Hillside Ordinance
Slope, RFA limits, retaining walls, grading, and discretionary triggers, reviewed before drawings begin.
View Baseline Hillside Ordinance →HPOZ Residential Design
Additions, remodels, second stories, garage work, and infill across the City of Los Angeles HPOZs.
View HPOZ Residential Design →HPOZ Navigation
A navigation framework for property owners and design teams working in Los Angeles HPOZs.
View HPOZ Navigation →Mulholland Specific Plan
Residential design inside the Mulholland Specific Plan and Scenic Parkway review area.
View Mulholland Specific Plan →Coastal Zone and Santa Monica Mountains
Topanga, Malibu, and the Santa Monica Mountains: Coastal Commission review and GSA limits.
View Coastal Zone and Santa Monica Mountains →Pasadena Historic Preservation
Residential design in Pasadena landmark districts such as Bungalow Heaven, Garfield Heights, and Prospect Park.
View Pasadena Historic Preservation →South Pasadena Cultural Heritage Commission
Cultural Heritage Commission review and historic-district additions in South Pasadena.
View South Pasadena Cultural Heritage Commission →South Pasadena Historic Resource Process
When a Certificate of Appropriateness is required, the exemptions, the review tracks, and the findings.
View South Pasadena Historic Resource Process →Sierra Madre Design Review
Design review, residential additions, and remodels in Sierra Madre.
View Sierra Madre Design Review →