How to Get an ADU Permit in Pasadena
📋 Key ADU Regulations in Pasadena
Before embarking on your ADU project, familiarize yourself with Pasadena's regulations:
Zoning Requirements:ADUs are permitted on single-family and multi-family zoned properties, subject to City regulations.
Unit Limits:Single-family properties can add one ADU and one Junior ADU (JADU). Multi-family properties may add two detached ADUs and at least one conversion ADU.
Size Limits:ADUs can range from 150 to 1,200 square feet, depending on the type and zoning.
Setbacks:Detached ADUs must maintain a minimum of four feet from side and rear property lines.
Height:ADUs should not exceed the height of the primary dwelling unit.
Parking:One off-street parking space is required per ADU unless the unit is a conversion or located within half a mile of public transit.
🛠️ ADU Express: A Streamlined Approval Process
Pasadena offers the ADU Express program, which expedites the ADU approval process:
Eligibility:Determine if your property qualifies by using the ADU Express Eligibility Tool.
Select a Plan:Choose from pre-approved ADU plans available in the ADU Pre-Approved Plan Catalogue.
Obtain a Meter Spot: Contact Pasadena Public Utilities to schedule a free "meter spot" for your ADU.
Submit Plans:Provide the meter spot report and selected plan number to Pasadena Planning and Building staff.
Site Plan Review:Meet with city staff to create your site plan and review construction requirements.
💰 How Much Does an ADU Permit Cost in Pasadena?
| Permit Type | Description | Estimated Cost |
| Plan Check & Permit Fees | Required for ADU construction; varies based on project size and complexity. | $7,000 – $13,000 for pre-approved plans; up to $14,300 for custom designs |
| Residential Impact Fee | Fees to address the impact of new development on public infrastructure. | $1,158 for affordable ADUs with affordability covenants |
| Fire Sprinkler Permit | Required if fire sprinklers are installed in the ADU. | Varies; contact Pasadena Fire Department for current rates |
| Grading Permit | Required if site grading is necessary for the ADU. | Varies; contact Pasadena Public Works Department for current rates |
| Utility Connection Fees | Costs for connecting water, sewer, and electricity services to the ADU. | Varies; contact Pasadena Water and Power for current rates |
| Design & Engineering Fees | Professional fees for designing and planning the ADU. | $8,000 – $20,000 |
✅ Benefits of Building a Permitted ADU in Pasadena
Opting for a permitted ADU offers several advantages:
Legal Compliance:Avoid fines and penalties associated with unpermitted structures.
Increased Property Value:ADUs can significantly boost your property's resale value.
Access to Financing:Easier to secure loans for permitted ADUs.
Peace of Mind:Ensure safety and quality through inspections and adherence to building codes.
