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Schedule ADU Consultation (408) 752-5614 ext: 425

Milpitas ADUs

Everything about building Accessory Dwelling Units in Milpitas, CA

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PLANNING OFFICE The city planning office is not open to the public at this time, but is accepting ADU permit questions and applications.

The city government of Milpitas will approve ADUs under California's statewide mandated regulations.
The California Building Code (CBC) 2019 is adopted.
Relevant state bill updates for SB13, AB68, AB881, AB670 are shown in green below.

Last Updated 04/05/20



hintsights

City Hint: The city has not yet responded to requests for ADU permit volumes for the past year, but they will be provided here once response has been received.


Number of ADUs allowed:

According to state law, all single-family homes are allowed at least one ADU. Additionally, single-family properties which are owner-occupied may create one ADU and one JADU. Also, multi-family properties may now add one ADU per every four existing residential units, so long as they were legally established.

As of January 1st, 2020

Types of ADUs allowed:

Detached ADU, Attached ADU, Junior ADU are allowed. Accessory Dwelling Unit (ADU)s may be new construction or converted from existing space. JADUs must be converted from existing space.

Lot size:

Single family and multi-family residential parcels will not be subject to the minimum lot size of the underlying zoning district or by ordinance for Accessory Dwelling Unit projects. ~ According To AB68

As of January 1st, 2020

ADU size:

Single-family and multi-family Properties will be allowed to create up to 850 square ft. for a one bed ADU or up to 1,000 square ft. for a two bed ADU, regardless of the underlying zoning standards of the property. A JADU up to 500 square ft. is allowed. The minimum size of any living unit (including Accessory Dwelling Units and JADUs) is 150 square ft. according to Califronia Residential Code. ~ AB68

As of January 1st, 2020

Setbacks:

The maximum required setback for a detached new construction Accessory Dwelling Unit (ADU) shall be no more than 4 feet from the rear and side property lines. Setbacks will not be required for Accessory Dwelling Unit (ADU)s and Junior ADUs converted from existing space that was legally eastablished. Attached Accessory Dwelling Unit (ADU)s and conversions from existing space to be expanded will be required to comply with the setbacks of the underlying zone. ~ AB-68

As of January 1st, 2020

Parking:

Replacement parking shall not apply to properties which convert an existing garage to an Accessory Dwelling Unit (ADU) or Junior Accessory Dwelling Unit. ~ AB68

As of January 1st, 2020

Fire Safety:

Per state requirements.

Shape, materials and style:

The second family unit shall be designed to be architecturally compatible and visually integrated with the primary dwelling. It shall employ design, materials and colors matching those of the primary dwelling.

Height:

A detached second family unit in a non-Hillside combining district shall be located on the rear half of the lot, shall not exceed fifteen (15) feet in height. A detached second family unit in the Hillside combining district shall not exceed seventeen (17) feet and one (1) story from finished grade to the highest Ridgeline of the building.

Design review:

Any application for a second family unit that meets the minimum Standards shall be approved ministerially without discretionary review or public hearing.

Number of Bedrooms:

The second family unit shall not have more than one (1) bedroom or more than one (1) kitchen.

Ownership:

Between between 2020 and 2025, owner occupancy requirements will not apply to new Accessory Dwelling Units. (applicable to new construction and conversion units) ~ Updated: State Law SB-13

As of January 1st, 2020

Utilities & Access

g.
Second family units shall not be allowed where roadways, public utilities and services are inadequate, as determined by City staff, based on the City's adopted sewer and water master plans. If City staff believes that an additional residential unit will impact traffic flow along the residential street on which the unit is proposed, the applicant shall provide a traffic impact analysis for staff review. The applicant shall comply with the recommendations contained in the traffic impact analysis.

Permit Fees

SB13 Update: As of January 1st, 2020, local impact fees for ADUs will be reduced substantially statewide.

Allowed Zones:

*** Beginning in 2020, according to state law, all residential zoning districts, including single-family and multi-family, are allowed to build Accessory Dwelling Units. ***

The lot is residentially zoned and contains only one (1) existing, legal single-family dwelling unit.

As of January 1st, 2020

Lot Coverage:

Detached ADUs in Hillside areas shall not cover more than thirty (30%) percent of the required rear yard.

Building Code

Local building codes shall apply to additions to existing single-family dwellings, as well as to detached second family units, as appropriate. A permanent foundation shall be required for all second family units.

Residential Building Code:

The California Building Code (CBC) 2019 is adopted.

Milpitas City Planning Offices
Permitting

Milpitas Planning & Zoning

455 East Calaveras Boulevard. Milpitas, CA 95035

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ADU Example Designs

ADU Model 600 sqft

W 40 ft L 15 ft

ADU Model 665 sqft

W 38 ft L 18 ft

Milpitas ADU Marketplace

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Program Representative

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Estimate ADU Potential
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Costs / ROI

SELECT ADU SIZE & TYPE

APPRECIATION ESTIMATE

* upon completion of ADU

CONSTRUCTION COST ESTIMATE

* based on local average price per sqft

RENTAL ESTIMATE

* estimated by location

MORTGAGE ESTIMATE

* 30 years / 5% interest rate / 20% down payment

SELECT ADU SIZE & TYPE

Size: 500 sqft

BASED ON LOCAL AVERAGE PROPERTY DATA & VALUE

Appreciation Estimate = (Base Value: $) / (Home's Living Space: sqft) * (ADU's Living Space: sqft)

Rental Estimate = (Rent Per Sqft: $3.91) * (ADU's Living Space: sqft)




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Our ADU Services and ADU Marketplace provide the fastest and lowest cost way to get started with your ADU project.

How does it work? Get started on your project with expert assistance and without commitment using our customized ADU Property and Design Reports as your first step. Then, get on-site visits from local contractors who can provide you with guidance and estimates for your ADU project.

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Our ADU Process

USE ADU SERVICES
Expert Feasibility & Zoning Research

USE ADU SERVICES
Expert Feasibility & Zoning Research

Use our ADU Property & Design Reports as a starting point to plan your ADU project. Our experts will do the legwork with your city or county planning office and design custom ADU concepts for your property and your needs.

GET YOUR ADU DESIGN
Get Your ADU Design Permit-Ready

GET YOUR ADU DESIGN
Get Your ADU Design Permit-Ready

Getting your designs ready for city permitting and construction can speed up your ADU project and reduce unforseen costs later on in the process.

OPEN ADU MARKETPLACE
Find contractors to build your ADU

OPEN ADU MARKETPLACE
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Use our local contractor database to get on-site visits and cost estimates to compare services for your ADU project.




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