ADU Vs Room Addition San Francisco- An Unbiased Comparison

ASL Remodeling

You need to know the details about ADU vs room addition San Francisco before choosing the right option. ASL Remodeling Construction Company can help you to build both. Both types of addition have their own benefits and drawbacks. So, you need to choose the right option according to your need. In this article, we will discuss the details.

Accessory Dwelling Unit San Francisco

San Francisco is a vibrant and iconic city located in the U.S. state of California. It is renowned for its hilly terrain, Victorian architecture, cable cars, and diverse culture. The city is home to many famous landmarks including the Golden Gate Bridge, Alcatraz Island, and Fisherman’s Wharf. To build an ADU, you can find a lot of companies in the area.

Permits For ADU

A permit is required to construct an ADU, which typically includes obtaining local building codes and zoning regulations. You can talk to the ADU builder about the permits.

SF ADU checklist

Here is the checklist for San Francisco ADU building-

1. Obtain a building permit: The City of San Francisco requires all property owners to obtain a building permit before any construction begins on a property.

2. Determine your zoning requirements: Each neighborhood in San Francisco has its own zoning restrictions regarding the size of an ADU that can be built. It’s important to know these restrictions prior to beginning any project.

3. Make sure you have adequate space for the ADU: An ADU must have adequate space for parking, access routes, and utilities. You will also need to make sure that the area is not already designated for another type of use.

4. Contact your local planning department: Before you begin any work, it’s important to contact your local planning department so they can help guide you through the process and make sure you stay compliant with city regulations.

5. Connect with utility providers: Before starting construction, it’s essential to contact any necessary utility providers such as water, gas, or electric companies in order to ensure that the project is properly hooked up and running when completed.

Benefits Of Building ADU

1. Increase Home Value: Building an ADU on your property can add significant value to your home. This is especially true if you build a rental unit that you can use to generate income.

2. More Living Space: An ADU provides additional living space without having to move or buy a bigger home. It’s especially useful for growing families or those expecting guests who need separate living quarters.

3. Increased Privacy: An ADU can give you additional privacy from other family members or visitors who are staying in the same house.

ADU building San Francisco- ASL Remodeling Construction CompanyBenefits Of Room Addition

1. Increased Comfort: Adding extra space to your home can create a more comfortable and spacious environment for both family members and guests.

2. Increased Home Value: Room additions add value to your home, making it an attractive option for potential buyers in the future.

3. More Living Space: With an additional room, you have more living space that can be used for a variety of purposes such as a guest bedroom, home office, or entertainment area.

4. Improved Functionality: An extra room can help improve the functionality of your existing layout by providing a separate space for specific activities.

ADU Vs Room Addition San Francisco: What’s The Difference?

These are two construction that serves similar purposes. But both are not the same. Here is the difference between these two-

ADU Vs Room Addition San Francisco- Which One Is Better?

The answer to this question really depends on the specific needs and goals of the homeowner. Room additions are typically more expensive than ADUs, but they can add significantly more space to a home. ADUs, however, is a great option for those who want to add living space without breaking the bank. ADU can be a great place for a home office or, for guests. And the cost is lower.

Things To Consider For ADU Building

Before building an accessory dwelling unit you need to consider some of the most important things. Here are those things-

  • Home Layout & Design: You need to build an ADU matching the design and layout of your home. For room addition, you need to follow the same layout and design. For, ADU you also can consider it.
  • Privacy: This is an essential feature that most people want from an ADU. So, you need to have a plan for the privacy of your ADU.
  • Size Of The ADU: ADU can be one-story, or two-story, and you can build it in the backyard. The size is also important. So, you should consider it.
  • Utility Connection: You need utility features in an ADU. The power supply is also necessary. So, you should ensure the power supply and other things related to utility.
  • Purpose: Every building has a purpose. You need to know the purpose of building an ADU. Therefore, you need to implement all the necessary things as needed.

Way To Choose The Best Company For Adu Building

For choosing the best company for the ADU building, you need to consider some important things. Before that, you need to make your decision after knowing- ADU vs room addition San Francisco, pros, and cons. Here are the things to consider for choosing the best construction company-

1. Consider The Reputation Of ADU Builder

The reputation of an ADU builder also indicates some qualities. Reputed companies usually have a good ecosystem to provide quality service. So, you always can expect good service from them. In addition, the workers of a reputed company are also skilled in most cases.

2. Local Experience

In may ways, you can get help from a local company. They can use local workers and collect permission from authorities. In addition, they can offer a quality service at an affordable cost. So, you should hire a local company for your project.

3. Skills Of The Construction Workers

If you do everything right and choose unskilled workers, you will never get your desired service. So, you have to make sure the construction company uses skilled workers to build an ADU. You can consider training and experience as two of the indicator of skills.

4. Reviews From The Homeowners

To compare the qualities of different construction companies, you can read reviews about them. Therefore, you can consider the pros and cons of their service. In addition, you can consider their overall rating and recent reviews. It will surely help you to make the right choice in the end.

5. San Francisco ADU Cost

You need to ensure the quality of service first. Therefore, you can make a shortlist of qualified companies and ask for quotes. And you can choose the lowest price among them. It will help you to get a quality service at a reasonable cost.

6. Ask For A Copy Of The License From The ADU Contractor

You need to hire a licensed contractor for any construction project. So, you can ask for a copy of the license from them. Therefore, you can choose them if they have other qualities.

7. Choose A Professional Company

After doing all the analysis, you need to choose a professional construction company. You need to make sure that they are affordable, honest, efficient, and effective. Choosing a professional company will help you to get the best accessory dwelling unit.

best adu home san francisco- ASL remodeling construction companyWhat Makes ASL Remodeling Construction Company Best For Room Addition And ADU Building?

After reading the analysis on ADU vs room addition San Francisco, you can decide the construction you need. Therefore, you can choose the best construction company. Here are the reasons to choose ASL Remodeling Construction Company-

  • Reputed Company: You can choose us for our good reputation in San Francisco area. We completed many projects in the past. So, most people trust us for our service.
  • Have A Valid License: We have a valid license. So, you can expect a minimum level of quality from us. And you don’t have to worry about your project if you choose us.
  • Trained Workers: All our workers are highly trained and experienced. So, they know the way to complete an ADU or, room addition project successfully. And you can rely on our workers for their experience and skills.
  • Satisfied Homeowners: If you read the opinions of the homeowners from Yelp and Google, you will find that they are highly satisfied. In addition, they want to hire us again for their home addition or, ADU building project.
  • Professional Service: You can expect punctuality, honesty, and efficiency from us. In addition, we listen to the customers and provide the best solutions to them.

These are the most common things to choose ASL Remodeling. If you consider other things you will find us equally effective. So, you can choose us without any hesitation.

ADU Vs Room Addition San Francisco- Most Effective Option

As we said earlier, both ADU and room addition have their benefits. However, we can provide you with the best service regardless of your choice. So, you can contact us and consult with us. Our qualities, experience, and commitment make us the most effective company in the San Francisco area.

Frequently Asked Questions:

How does an ADU differ from a residential unit?

An ADU, or Accessory Dwelling Unit, is a secondary residential unit typically located on the same lot as an existing single-family home. An ADU is usually smaller than a residential unit and may have its own separate entrance, kitchen, bathroom, and living area. Unlike a residential unit, which typically requires separate zoning for construction, an ADU is generally built within the limits of existing zoning regulations.

How much value does an ADU Add in San Francisco?

The value of an ADU (Accessory Dwelling Unit) in San Francisco will vary depending on the size and location of the unit. However, a recent study shows that it can increase home value by up to 30%. In some areas, it is higher. So, it will be a great idea to build an ADU.

Can I have 2 stories for ADU?

Yes, you can have. Sometimes, you can add more stories to it. Before building a two-story ADU, you can read about the analysis of ADU vs room addition San Francisco. In addition, you can consult with your contractors to make the right choice. ASL Remodeling Construction Company can help you to build it.

What are the pros and cons of an in-law unit San Francisco?


An in-law unit can provide an additional source of income and rental opportunities. In addition, it can provide housing for family members, helping to reduce the cost of living.


The costs associated with constructing an in-law unit may be too high for some homeowners, and the process of obtaining permits can be lengthy and expensive.

Can I build a backyard ADU San Francisco?

Yes, you can build a backyard ADU in San Francisco. However, you must follow the city’s regulations for doing so. These regulations include size and design limitations, parking requirements, and permits that must be obtained. In addition, you can talk to the ADU builder. ASL Remodeling Construction Company can help you with it.

Read More About:

Frequently Asked Questions


Our Process:

We begin by scheduling a site visit with one of our project manager specialists to listen to your ideas, desires, budget, and goals. During the meeting, we’ll understand your vision and gather all necessary details. We value your input and will provide ideas, a ballpark number, and a timeline. believe in open communication throughout the process.

Whether you choose our basic design or have a dedicated interior designer, our specialists, architects, and designers will translate your vision into detailed floor plans.

We’ll consider every aspect, from architectural and engineering design to very realistic 3D renderings with all the finish materials integrated into material selection. We’ll collaborate closely with you to ensure the design meets your expectations.

Once the design is finalized, we’ll provide you with a comprehensive proposal.

It includes the cost of the project, inspections, timelines, and project scope. We believe in transparency, so we’ll address any questions or concerns you may have before proceeding.

With the work order agreement approved, we’ll proceed with the necessary agreements and permits.

Our team will handle all the paperwork, including pulling the city permits required for the project. We’ll ensure compliance with local regulations, making the process hassle-free for you.

With permits obtained, our skilled craftsmen will begin the construction phase with full support and tight communication with your dedicated project manager throughout the entire length of the project. We’ll bring your vision to life, paying attention to every detail and ensuring the highest level of craftsmanship.

The transformation is complete. Enjoy your new, beautiful living spaces. Your dream home has become a reality with ASL Remodeling

bathroom remodeling Redwood City- ASL Remodeling Construction Company
Trusted By Happy Clients

At ASL Remodeling, we are committed to providing exceptional design and build services to our clients. Don't just take our word for it – hear from some of our satisfied customers below.​

Adi Yossef
We were looking for a company that was transparent, responsive and did high quality jobs. We heard about ASL Remodeling through a family friend for a property of ours in the Bay Area. We needed to do a full home renovation. Yoni came to meet us, he was so knowledgeable and guided us through the entire process. All the work was completed while we were outside of the country, so trust and communication were crucial. They were on top of everything. They kept us informed at every stage. They were very professional and we are so happy with the final result. Grateful to ASL Remodeling, looking forward to working with them again in the future.
Recently, we were seeking for someone to replace our old, less practical kitchen with a new one that was more functional. Choose ASL Remodeling, as recommended by my best buddy. They sincerely want to give you the best of whatever they have to offer, which is why they are incredibly patient and open-minded. the countertop manufacturer to working with their really fantastic cabinet maker. I just want to offer more and more, wow. Next year, we're planning to move into the entire house, and only one company—ASL—will handle it. We appreciate your generosity, gentlemen.
Andrew Leung
ASL Remodeling did a great job with a whole home remodel for us. The project stayed on track and on budget (well we choose to add a few things along the way). We did flooring, doors, 2 fireplaces, a whole kitchen, stairs, railing, etc… and we are happy with how everything turned out. ASL also did a great job helping us out with unexpected fixes when winter weather threw us some curveballs. We’re looking forward to working with ASL on our next home project and recommending them to friends and family.
Eloy M Valdez Aispuro
We had a great experience with ASL Remodeling. Our full home renovation was fairly complex, it was a complete renovation with new Master Bath, Kitchen with full custom cabinets, a powder room, and building out a new area and wiring for the washer/dryer. Yoni (the job boss) and the crew were fantastic. The team was especially great. They were very responsive and kept us abreast of the next steps and what to expect. The same goes for the office. We couldn't be happier with the final new Home that we received.
Ella Morgan
I wish I could give 10 stars for this construction company ! They were close by and very convenient. These guys are extremely talented and truly have a passion for remodeling, and delivering a great experience for their customers. My total home renovation was handled seamlessly. From my 1st conversation to the final days of the project, the entire crew were always available, on time, and professional. They cleaned up all the debris left daily and wore masks the entire time. They promised to deliver more than I asked for. Well done ASL Remodeling!! We appreciate all your hard work.
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