Accessory Dwelling Unit Costs in 2023

 

General ADU Development Costs

The most frequent question we get asked as Accessory Dwelling Unit (ADU) experts is how much will it cost to install an ADU. The true costs associated with developing ADUs astound many would-be homeowners. These prices frequently differ from what people have read online or from the information given by contractors.

It is vital to realize that creating an ADU is quite similar to creating a new home. As a result, with a few modifications, the procedure and accompanying costs are similar to those encountered when building a new home.

Prior to starting your ADU planning process, it’s crucial to be aware of the four main expenses connected with ADU construction:

  • ADU Design and Planning Costs
  • ADU Related City and County Fees
  • Costs of Labor and Materials for ADU Construction
  • Costs of ADU Finish Materials

Keep in mind that these categories are only general classifications. Each category can be further broken down into individual items, and the cumulative sum of these items determines the total cost within that category. Hiring a contractor who specializes in accessory dwelling units will help speed these processes.

Accessory Dwelling Unit Blog UP Craftsmen

ADU Design and Planning Costs

The intricacies of ADU design and planning often surpass the initial expectations of many individuals. At the outset, you’ll find yourself working alongside a team of skilled professionals to obtain an array of crucial drawings and calculations required for the project. This category entails several costs, can in include some or all the following, depends on ADU type, but not limited to:

  • Architectural Design: The costs of employing a designer to generate detailed ADU plans and blueprints that are tailored to your ADU’s specific needs.
  • Structural Engineers: Costs associated with working with structural engineers to assure the structural integrity and safety of the ADU design.
  • Interior Design & Consultation: Fees for interior designers to assist with maximizing space and producing a practical and aesthetically beautiful interior are available if needed.
  • Land Surveys and Site Evaluations: Fees for land surveys and site evaluations to determine the feasibility and suitability of your property for ADU development.
  • Integration of Solar or Renewable Energy: Assessing the feasibility and cost of incorporating solar panels or other renewable energy sources to offset energy usage.

These are just a few of the many components that make up the design and planning area, each of which contributes to the ultimate cost of your ADU development. The expenses of design and planning will vary depending on the individual’s personal requirements and preferences.

ADU DESIGN AND PLANNING STAGE BASIC EXPENSES TYPICALLY RANGE FROM $14,000.00 TO $20,000.00

Your place within this range is fully determined by factors such as your design preferences, the size of the ADU, and the professionals you deal with – selecting collaborators who actually work with you rather than focusing purely on financial rewards. It may be higher for some ADUs because the essentials will not suffice.

UP Craftsmen ADU Builder

ADU Related City and County Fees

There will be various city costs that you must pay when creating an ADU in any city to comply with local legislation and receive the necessary licenses. These fees are required to pay city services and to ensure that your ADU complies with zoning and building laws. Some of the most typical city costs linked with ADUs are as follows:

  • Plan Check and Review Fee: Additional costs for the city to review your ADU plans and ensure compliance with building codes.
  • Planning and Zoning Fee: A fee related to the evaluation of your ADU project against the city’s zoning regulations and land-use requirements.
  • Sewer and Water Connection Fees: Charges for connecting your ADU to the municipal sewer and water systems.
  • Fire Department Fees: If your ADU requires a fire safety inspection, there may be fees associated with this service.
  • Utility Fee Deposits: Some cities may require a deposit to ensure the payment of utility bills associated with the ADU.
  • Impact Costs: These fees are levied to compensate for the additional development’s impact on city infrastructure and services such as schools, parks, and transportation.
  • Certificate of Occupancy Fee: This is the cost of obtaining a certificate of occupancy, which certifies that your ADU meets all of the requirements and is appropriate for habitation.

It’s crucial to remember that the fees and amounts might vary greatly from city to city. They can also be affected by factors such as the size of the ADU, its location, and the project’s complexity. Your budget appropriately and avoid surprises during the construction phase, make it important to investigate and understand the local costs pertaining to your ADU development. Consultation with your local planning agency or a competent ADU builder will assist you in better navigating these fees.

The fees will vary from city to city. However, keep in mind that most city taxes are fixed and are based on the size and value of your ADU.

ON AVERAGE, THE TOTAL COST OF ADU CITY FEES FALLS WITHIN THE RANGE OF $3,000.00 TO $11,000.00.

UP Craftsmen ADU Builder

Costs of Labor and Materials for ADU Construction

Contractors’ costs for building labor might vary greatly depending on their competence and reputation. It is critical to realize that going with the cheapest contractor may result in unfavorable results. Such contractors may lack the necessary knowledge and skills, and they may subsequently surprise you with hidden expenses, jeopardizing the quality of your ADU project.

In terms of material pricing, experienced contractors frequently have established contacts with local suppliers, allowing them to offer clients cost-saving agreements. However, it’s critical to understand that the designs and materials you choose will have a significant impact on the overall costs in this category.

The ultimate cost of construction and materials for your ADU project is influenced by a variety of factors. These parameters are as follows:

  • Design and Plans: The intricateness and originality of the architectural plans for your ADU.
  • Structure Type: Depending on whether your ADU is a separate apartment or a garage conversion, labor and material costs may vary.
  • Size: The ADU’s size will have a big impact on the overall cost of materials and construction.
  • Conditions of Property: The state of the topography on your property and whether any site preparation or alterations are required.
  • Conditions of the Existing Structure: If converting an existing structure, the state of the building and the alterations required will affect expenses.
  • Utility Connection Location and Distance: Accessibility and distance to utility hookups can affect installation costs.
  • Cost of Materials (Rough and Finish): The materials selected will have an impact on the entire budget, both for the rough construction phase and the finishing touches.
  • Energy Efficiency: While there may be greater initial costs involved, putting an emphasis on energy-efficient features in your ADU can result in long-term energy bill savings.

ADUs that are larger often have higher total costs since more materials and labor are needed. However, larger ADUs often have lower cost per square foot. For instance, the cost per square foot of a detached 1,200 square foot unit may be lower than that of a 400 square foot unit.

Keep in mind that adding a second floor will dramatically raise the cost per square foot, maybe by as much as 50%. Before selecting whether your ADU project needs a second story, it is crucial to give it careful thought.

Calculating the Labor and Material Costs for Your ADU

Construction of an ADU conversion normally costs between$175 and $225 per square foot on average. This kind of ADU is converting an existing building, such a garage, into a residential space, which can be more affordable than new construction.

On the other hand, the costs will often be higher if you intend to build a new ADU from scratch.

If you are constructing an ADU from scratch, you should budget between $250 and $350.00 per square foot for labor and supplies.

UP Craftsmen ADU Builder
Kitchen Design in Silver Spring, MD

Costs of ADU Finish Materials

Budgeting wisely for finishing materials is essential because they are vital in giving your nearly finished ADU a decorative and appealing appearance. These finishing touches improve the general appearance and feel of your living area. You’ll require the following finish supplies to complete your ADU:

  • Flooring: Depending on your tastes and price range, choose from a variety of materials such hardwood, laminate, tile, vinyl, or carpet.
  • Doors: Consider the door type and material that best matches the ADU’s design and theme.
  • Windows: Choose energy-efficient windows that complement the beauty of your ADU and offer enough natural light and ventilation.
  • Cabinetry: To maximize both usefulness and aesthetics, choose high-quality cabinets for the kitchen, bathroom, and other storage areas.
  • Tile: Use tiles for backsplashes, showers, or flooring to enhance the aesthetics and functionality of certain spaces.
  • Stone: To give a sense of refinement to the interior, use natural or engineered stone for accent walls, fireplaces, or countertops.

Budgeting for ADU finish materials normally ranges from $50 to $100 per square foot on average.

The real pricing, however, may differ based on the kind, name, and materials you select. The following variables may have an impact on how much finish materials will ultimately cost:

  • Material Quality: Although more expensive, higher-quality materials frequently provide improved durability and attractiveness.
  • Design Complexity: Expensive designs or components produced to order may result in increased fees.
  • Size of the Room: Costs will increase since larger, greater surface-area rooms demand more finish materials.
  • Material Choice: Because different materials have a range of costs, your decisions will affect the overall price.

It’s critical to shop around and compare rates, consider your alternatives for materials, and make a finishing phase plan for your ADU in advance to make sure you stay within your budget. Working with knowledgeable builders or interior designers can also help you make well-informed choices, achieve the desired aesthetic, and successfully manage costs.

UP Craftsmen ADU Builder

Costs Vary Based on ADU Development Type

There are two main types of ADU development: new construction and garage/structure conversions. A garage conversion often offers the best value of these options because it is between 20 and 25 percent less expensive than building an equivalently sized new ADU. Utilizing the garage’s existing foundation, framed walls, and roof resulted in significant cost savings.

It’s crucial to keep in mind that the state of these existing components also affects the real cost difference. The financial savings of a garage conversion may be countered if the foundation, walls, or roof of the garage need considerable repairs or replacement.

It’s important to remember that you shouldn’t anticipate much lower prices than constructing a brand-new ADU from scratch if your garage is in a seriously degraded situation. The cost difference between garage conversions and new construction may be reduced by the costs of substantial repairs or rebuilding.

Keep in mind that each sort of ADU has advantages and things to consider. While converting a garage might save money and make use of unused space, new construction offers more architectural flexibility and the chance to customize the ADU to your own needs and tastes. You can choose the best course of action for your ADU project by weighing these considerations.

ADU Costs Overall

In conclusion, considering the above mentioned factors will help you determine the overall average cost of your ADU. These variables fall under several headings, such as design and planning, city taxes, construction labor and material costs.

Start An UP Craftsmen ADU Project Today!

Why Build an ADU in Your Backyard?

Use Case Scenarios for Accessory Dwelling Units

Additional Space at Home

  • Additional living space you may increase the size of the house you already adore without having to move.
  • Meet numerous purposes with a single addition, from a home office to a living space for a loved one, with countless choices in between, to create a peaceful haven just a few steps from your original dwelling.

Rental Earnings

  • By renting out your accessory dwelling unit, you may offset the cost of your mortgage and other monthly obligations.
  • Since detached ADUs give both you, the homeowner, and your tenant greater privacy, it’s simple to make money without sacrificing your way of life.
  • Use short-term rentals to earn money while continuing to use your ADU for private purposes.
    ADU Final Inspection and Certificate of Occupancy
    Type of ADU

    Increased Home Value

    • ADUs increase the livable area of your home, adding appraisal and resale value.
    • Rising property values increase your equity and create an asset you can leverage in the future.
    • Adding an ADU is a long-term investment in your home that you can also enjoy immediately.

    Age in Place

    • In addition to keeping an eye on the individuals you care about, give them the privacy and autonomy they require.
    • Give elderly parents or adult children a full home experience so that they can feel secure in their proximity to the people they rely on.
    • Make it possible for families to live together in multigenerational housing, giving each member the privacy and freedom, they require.

    A Higher Value for Homes

    • Your home’s usable space will grow thanks to ADUs, increasing its value during assessment and sales.
    • Your equity grows as a result of rising property values, and you gain a future-leverageable asset.
    • The immediate and long-term benefits of adding an ADU to your house are both available.