10 Tips to Build an Affordable ADU in California

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Last Updated: December 27th, 2023

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Build an Affordable ADU in California

Constructing an Accessory Dwelling Unit (ADU) doesn’t need to be expensive. You can create an affordable and functional ADU by planning carefully and making wise choices. With the correct approach, you can build an affordable ADU that suits your needs without overspending.

If you are thinking of building an accessory dwelling unit (ADU) without spending too much, this article is for you. Check out these practical, budget-friendly ADU construction tips that make the most of space and functionality and offer a lot of other benefits. But before going through the tips, have a look at the latest financing updates from State of California.

ADU Grant Program

As per the California Housing Finance Agency (CalHFA), the latest round of funding for the ADU Grant Program was fully allocated as of December 28, 2023. Therefore, the $40k ADU Grant is no longer in service as of January 2024. The grant ceased to be available due to high demand, with the pool being drained within days after $25 million was approved by the government in December 2023. While there are hopes for its return in the future, currently, the grant is not available for homeowners looking to build an ADU.

(Source: Maxable Space and California Housing Finance Agency)

Tip 1: Start with a Clear Budget

Before you begin building your Accessory Dwelling Unit (ADU), it’s important to plan your budget carefully. Consider all the expenses, including ADU design tips, workers, materials, permits, and any unexpected costs. Having a well-defined budget is similar to having a construction project road map. It guarantees that you are aware of where your money is going and assists you in setting priorities for your ADU. Spend some time carefully planning your budget before beginning the building procedure.

ADU Design Guest House - Nailed It Builders

Tip 2: Optimize Design for Efficiency

Budget-friendly space optimization may be achieved with a compact and smart design. Choose flexible furniture, open floor plans, and inventive storage options to create a cozy living area without going over budget. Optimizing design provides a comfortable and useful space for everyday life by maximizing utility while adhering to budgetary restrictions.

Also read: Top 5 ADU Design Ideas To Increase Your Property Value

Tip 3: Explore Prefabricated or Modular Options

Choosing a prefabricated or modular ADU can save you money and time. These options are faster and cheaper than traditional construction methods, without sacrificing quality. Prefab or modular ADUs use ready-made parts, making the building process faster and more affordable. This choice is great for those wanting a budget-friendly and efficient way to create additional living space. It’s a smart alternative to traditional construction methods, giving you a quality ADU without breaking the bank or taking too much time. Opting for prefab or modular options is a practical way to achieve your housing goals.

Tip 4: DIY Where Feasible

If you’re good at it or want to learn it, you can save money on building by doing some tasks yourself. Stuff like painting, fixing up the yard, or easy installations are things homeowners can handle. Doing these things on your own cuts down on how much you pay for workers. It’s a way to make your place nice without spending too much.

Tip 5: Consider Sustainable Materials

Pick materials for your Accessory Dwelling Unit (ADU) that are good for the environment and your wallet. Choose eco-friendly options to lessen your impact on the environment and save money such as recycled wood or energy-efficient insulation for your ADU. This way, you use sustainable choices that won’t cost too much while also being kind to the planet. It’s about finding a balance between durability and cost-effectiveness.

ADU Near Greenery - Nailed It Builders

Tip 6: Opt for Standardized Fixtures

Picking regular stuff like doors, windows, and appliances that are standard is usually cheaper than custom ones. Go for the usual sizes and designs to save money without losing quality or how well things work. It’s a smart move; by doing this, you get what you need without spending too much. When building, stick to the basics to keep costs down while still getting good stuff for your place.

Tip 7: Prioritize Essential Features

For a budget-friendly ADU in Santa Clara, California, figure out what you need. Make a list of essential things for your ADU to work well. Put these important things at the top of your list, and plan your budget and design around them. Fancy or extra things can wait for later as upgrades. This way, you spend money on what matters most. Keep it simple and focus on what you need for your ADU to work efficiently. This helps you use your resources wisely and make your ADU comfortable without spending too much.

Tip 8: Make Use of Existing Structures

Consider using existing spaces like a garage or underutilized areas for your ADU. This can save money compared to building something completely new. Repurposing cuts costs and makes it easier to create an additional living space on your property. Using what you already have is a smart and budget-friendly approach to constructing an Accessory Dwelling Unit (ADU). Save on expenses by transforming existing structures into functional living spaces for your ADU project.

Also read: Backyard Bungalow – Can I build a house in my backyard?

Tip 9: Research Local Building Codes

Before starting your ADU project, make sure to research local building codes and zoning regulations thoroughly. Understanding these rules prevents expensive errors and ensures your construction follows all the necessary guidelines. This step is the key to avoiding problems and making your project compliant and stress-free.

Tip 10: Get Multiple Quotes from Contractors

When hiring ADU contractors in Santa Clara, get prices from different ones to see what they offer and how much it costs. Don’t be afraid to talk about the ADU design tips and prices and ask for a lower cost. It’s important to find a good balance between quality work and a price that fits your budget for successful and affordable ADU construction.

How much does it cost to put in an ADU in California?

Building an Accessory Dwelling Unit (ADU) in California can range from $200,000 to $400,000, depending on various factors such as ADU type, size, location, and additional details. The costs can be divided into soft costs, which include architectural design, consultation, and permit costs, and hard costs, which encompass labor and material expenses.

Soft costs typically range from $20,000 to $30,000 for architectural design and $8,000 to $12,000 for consultation, and permit costs vary between $2,000 and $10,000 for building permits and $3,000 and $11,000 for city fees. On the other hand, hard costs, which constitute the majority of the expenses, include site preparation, construction, and utilities/interior costs.

Site preparation costs can vary widely depending on factors such as excavation, concrete foundations, and retaining walls, ranging from approximately $50 to $200 per cubic yard for excavation and $4,200 to $13,200 for concrete foundations, among others.

Construction costs for a 400-600 sq. ft. ADU typically range from $200,000 to $300,000, while utilities and interior costs can add an additional $10 to $60 per square foot.

(Source: Henson)

Final Words

You can create a comfortable and functional living space without exceeding your financial limits by incorporating these affordable ADU construction tips into your project. Your ADU can become an affordable extension of your property that may also increase its value.

We help build budget-friendly ADUs! Our service offers affordable solutions for constructing an Accessory Dwelling Unit (ADU). With cost-effective designs and efficient construction, we make adding a dwelling unit to your property simple and within your budget.