The first step to building an ADU is to plan. You can choose the size of the ADU according to your needs and budget. Our team will help you make the right choice. Before building an ADU, it is necessary to get a land check and permit. We will guide you through the entire process.
Choosing the right time to build an ADU is also important. Weather and availability of building materials should be taken into account. Our team will tell you the most suitable time. We guarantee timely completion of the project. You can trust us without worry.
Site planning is very important for ADU in Hawthorne. We will choose the best location by surveying your property. Planning is done by looking at the condition and slope of the ground. Electricity, water and sewer connections are checked. We create the best designs following local regulations.
There are several rules that need to be followed to make an ADU in Hawthorne. We follow all building codes and zoning regulations. Help you get all the necessary permits. Our team conducts inspections regularly. We take full care of safety standards.
The design of ADU is made according to your needs. We use modern and durable materials. Adequate lighting and ventilation are provided in each room. Proper space is left for furniture and appliances. We focus on energy-saving design.
Prepare your ADU floor plan today. Our team will make the design according to your liking. You can choose the number and size of rooms. The location of the kitchen and bathroom will be decided according to your convenience. We will give you a better understanding by showing the 3D model. We will make your dream come true.
At Hawthorne we offer ADU making services in all these zip code areas. You can contact you from anywhere.
| Zip Code |
| 90250 |
| 90251 |
| 90260 |
ADU Builders CA is the trusted ADU construction company in Hawthorne. We have experienced architects and craftsmen. We complete every project on time. Our team will help you throughout the process. We guarantee the quality and service. You can trust us without worry.
The cost of making an ADU at Hawthorne depends on its size and design. From the table below you can understand the estimated cost.
| Type and Area | average cost | Moderate Cost | High cost | Property ROI (%) |
| Studio ADU (420 sq ft) | $112,000 | $205,000 | $215,000 | 5% |
| 1 Bed 1 Bath (520 sq. ft.) | $205,000 | $215,000 | $305,000 | 6% |
| 2 Beds 1 Bath (630 sq ft) | $215,000 | $305,000 | $315,000 | 7% |
| 2 Beds 2 Baths (1000 sq. ft.) | $305,000 | $315,000 | $405,000 | 8% |
| 3 Beds 2.5 Baths (1,100 sq ft) | $405,000 | $415,000 | $505,000 | 9% |
The City of Hawthorne Building and Safety Department, located at 4455 W 126th St, Hawthorne, CA 90250.
Office hours are typically Monday through Thursday, 7:30 AM to 5:30 PM.
Yes, many permits can be submitted online through the city’s official website.
Contact the Hawthorne Building and Safety Department at (310) 349-2900.
Permit approval typically takes 2–3 months, depending on application completeness.
Check the zoning and lot size requirements through the city’s planning department.
Inspections for framing, electrical, plumbing, and final compliance are mandatory.
