Number of ADUs Allowed in Maywood
- Maximum size: 1,200 sq ft (detached or attached, or 50% of the size of the main dwelling)
- Side/rear setbacks: 4 feet
- Two story: Yes, for both attached and detached ADUs
- Building separation: 6 feet
- Soils Report: Possibly, especially in areas with grading or on hillsides
- Building Verification Survey: Yes
- Coastal permit (in some areas): N/A
- Stormwater Mitigation: Yes
Number of ADUs Allowed in Maywood
You are allowed to put one attached or detached ADU on single-family property in Maywood, as well as one JADU.
Multifamily property owners in Maywood may convert existing uninhabitable space into at least one attached ADU, and additional ADUs not to exceed a maximum number equal to 25% of the existing units. Ergo:
- From 2 to 7 units, you could convert existing uninhabitable space into one ADU
- From 8 to 11 units up to 2 ADUs
- From 12 to 15 units up to 3 ADUs
- And so on.
No more than two detached ADUs may be constructed on a multifamily lot in Maywood.
ADU Maywood – Size & Building Constraints
An detached ADU can be up to 1,200 square feet in Maywood.
An attached ADU in Maywood can be up to 1,000 square feet, or 50% of the square footage of the primary dwelling unit, whichever is smaller.
In Maywood, an ADU is limited to 16 feet of height.
Due to height restrictions, 2-story ADUs are not allowed in Maywood.
Generally speaking, in Maywood detached ADUs cannot be stacked one on top of another, with one ADU on each story. Only one detached ADU is allowed on single-family property, and even on multifamily property height restrictions would prohibiti such a design.
Maywood rules do not specify whether two detached ADUs can be attached together within one structure, nor does California state law. Keep in mind that only multifamily property is allowed to have two detached ADUs on one property; single-family property is limited to one detached ADU. Plansmightget approved on multifamily property for two ADUs in one detached structure, but other ordinances for landscaping, setbacks, and separation. In practice, it is rare.
No, a JADU is defined as an ADU converted from existing space within the main structure of the primary dwelling unit. As such, it cannot be attached to an ADU.
Generally roof decks would be permitted on an ADU, but must meet the height restrictions for the zone. Roof decks cannot encroach into the required setbacks. As a rule of thumb, railings and access staircases above 42″ need to be included in height calculations.
An ADU must match or harmonize with the exterior of the main dwelling unit, including color palette, roof pitch, architectural style, and other aesthetic characteristics.
ADU Setbacks in Maywood
ADUs behind the primary dwelling unit in Maywood require a minimum of 4-foot side and rear setbacks.
The ADU must maintain sufficient distance from other structures on the property to comply with fire regulations — usually at least 4 or as much as 6 feet of separation between buildings.
City regulations do not explicitly prohibit an ADU in the front yard, but in practice it is very difficult, since the ADU must comply with front and side setback, building, landscaping, and aesthetic requirements.
ADU Setbacks in Maywood
The City of Maywood does require in-person submission of plans. You can schedule an appointment with the Planning Division onlinehere. Plan applications can be emailed to[email protected].
Maywood may require a soils report for ADU permitting to make sure the soil can support the new structure, especially if the ADU will be located on a hillside, an area with significant grading, or if there are special foundation requirements.
Specific requirements are not mentioned in the building code, but the building plans must allow for sufficient green space and permeable landscaping surface.
The plan check requires a review by the Planning Division for zoning, building standards, and safety compliance. The process takes approximately 15 business days, though that timeframe can get extended if the division is particularly busy.
Parking for Maywood ADU
One new parking spot is typically required to be added to the lot per new ADU. However, exemptions may apply if:
- The ADU was built into an existing structure.
- The property is located within a historic district.
- The property is located within ½ mile walking distance of a public transportation stop.
- The property is located within one block of an established vehicle share stop.
- Off-street parking permits are required but not offered to ADU occupants.
If a parking space must be added, it can be included on the driveway or any setback areas, and it may be configured as tandem parking.
Additional Requirements in Maywood
Per Title 24 of the California Energy Code, solar panels of appropriate size and capacity are mandatory on new-construction ADUs. ADUs built from converted existing structures are exempt, as may be ADUs located under significant shading. Smaller ADUs may be subject to reduced or modified solar panel requirements.
An ADU is not required to have a separate water or electrical meter. You can opt for the ADU to share service with the main dwelling unit. However, you can request separate water or electrical meters from the City of Maywood.
Maywood does not automatically assign a new ADU its own address. However, it may assign the ADU a new address if it is intended for rental or independent occupancy. The ADU will usually get a “½” designation — for example, an ADU located behind 1234 Pine Street would have the address “1234½ Pine Street.
Low Impact Development (LID) is an approach to land development or redevelopment that seeks to preserve and conserve onsite water quality and natural features, with minimal detrimental effect to local waterways and ecosystems. The City of Maywood may require LID fees for larger ADUs.
An ADU can be used as an Airbnb in Maywood, but California law limits short-term rentals to 30 days at a time and 120 days out of the year. You must be licensed and registered, and additional fees and taxes may apply.
Per the Costa-Hawkins Act of 1995, Maywood does not impose rent control on dwellings constructed after February 1, 1995. This means most new-build ADUs are exempt. However, if the primary dwelling unit is subject to rent control, it might apply to the ADU as well.
Maywood has rent-stabilization ordinances in place limiting rent-increases to 4% annually, but single-family homes and condominiums are exempt, which applies to ADUs, so an ADU will be exempt from this rule.
While encouraging the use of electric appliances for efficiency and sustainability, Maywood does not prohibit gas appliances in new ADUs as long as all relevant installation and safety standards are met.
In Maywood you are only required to install sprinklers in a new ADU if the primary dwelling unit has them as well. You may also be required to install them if the ADU is located within a special fire hazard zone.
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