Before adding an accessory unit to your property, comparing ADUs vs JADUs will help you make the right choice. Depending on your needs, available space, and functionality, we will help you decide whichever is best for you if not both units.
Let us be your go-to design and construction partner for your ADU construction project.
Accessory dwelling units and junior accessory dwelling units have a lot in common but also have a few differences. Discover what they are to help decide the right construction for your project.
| ADUs | JADUs |
| ADUs may be built from scratch or converted from other existing structures. | Only existing structures can be converted into a junior accessory dwelling unit. |
| ADUs are standalone structures that may be attached or detached from the main dwelling. | JADUs are smaller units created within the existing space of a single-family home. |
| They have a separate entrance, bathroom, kitchen, and utility systems. | They often share utilities such as plumbing with the main dwelling. |
| ADUs offer independence and serve a variety of purposes. | On the other hand, JADUs have limited space and independence. |
| Construction and permitting are extensive processes as ADUs are separate buildings from the main dwelling. | Converting existing space is less complicated and less work than a standalone ADU. |
| ADUs must meet the local building codes and criteria. | JADUs are subject to regulations and requirements different from those of ADUs. |
Explore the limitations and regulations of ADUs and JADUs in Los Angeles.
ADUs must comply with specific zoning limitations and regulations, such as restrictions on lot size, setback requirements, and allowed building heights.
ADUs must have additional parking provisions apart from exempted areas, such as those near public transportation or in certain designated zones.
Some areas may require the owner to live in the primary dwelling or ADU. However, some jurisdictions have recently allowed more flexibility for renting out the units.
ADUs have size limitations regarding the maximum square footage allowed or as a percentage of the primary dwellings floor area.
JADUs are subject to the same zoning limitations as ADUs. However, some jurisdictions have exemptions and provisions to encourage JADU conversions within single-family properties.
JADUs have smaller size limitations as compared to ADUs. The maximum square footage or allowed percentage for JADUs is reduced to ensure JADUS remain compatible with the existing home’s size.
JADUs share utilities such as plumbing with the main dwelling. This helps to maintain the character of the single-family home.
Part of our ADU and JADU construction service is to consider all requirements before your project to ensure the design and construction of a functional and structurally sound accessory unit.
Building codes and permits
Both ADUs and JADUs must comply with the local building codes and regulations. You must also acquire the necessary permits for the ADU or JADU conversion.
Utilities and infrastructure
ADUs will require the installation of separate utility systems, whereas JADUs often share utilities with the primary dwelling.
Construction methods
As Los Angeles ADU building experts, we construct ADUs which are typically standalone structures and require extensive construction work. We also convert existing spaces into JADUs which normally involves modification of walls, floors, and ceilings and the extension of utility lines.
Access and parking
ADUs may require a separate entrance, such as a dedicated walkway or driveway, to maintain privacy for the residents. JADUs make use of the existing parking and access arrangements.
Space and layout
ADUs provide more design flexibility, such as separate entrances, full kitchens, bathrooms, and independent living spaces. However, the JADU design and layout you choose must be within the constraints of the existing structure.
Size and scale
Depending on the local area regulations, ADUs can have varying sizes, small or large. JADUs are, however, much smaller as they must be created within the existing home.
Integration with the existing structure
JADUs need to be integrated with the existing structure, so the design must be cohesive and implement the architectural style of the primary unit. As your ADU contractor in Los Angeles, we must integrate elements such as matching exterior finishes, extending existing utility lines and ensuring constant design elements throughout your Los Angeles project.
Our professionals at ADU Builders will help you get the accessory dwelling unit that suits your needs and preferences and adds to the value of your home, amongst other benefits. We will handle all the processes and details to ensure the construction process is smooth and seamless.
ADUs are standalone attached or detached units. JADUs are much smaller and share most, if not all utilities with the primary dwelling.
Yes, you can. Note that it is essential to ensure compliance with local regulations regarding renting out, such as tenant screening.
Yes. You must acquire a permit from the local planning or building departments. Understand the requirements and submit your application before you can begin construction. Your contractor can handle this for you.
These units will provide extra livable space or an additional source of income in case you decide to rent out the unit.
Most jurisdictions allow homeowners to have both an ADU and JADU on their property. Review the specific zoning restrictions.
