Plan record

Modular Millie 2 2 L shape

Modular Millie 2 2 L shape is a pre-approved prefab ADU plan from Inspired ADUs. The public source lists it as 992 sq ft and 2 beds; bathroom count is not listed. It originated in the San Mateo, San Mateo County, California, USA program. This directory currently shows acceptance in San Mateo, San Mateo County, California, USA. Source context comes from City of San Mateo / Community Planning Collaborative, last checked Jul 28, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Source-backed summary

What public sources list

Modular Millie 2 2 L shape is a pre-approved prefab ADU plan from Inspired ADUs. The public source lists it as 992 sq ft and 2 beds; bathroom count is not listed. It originated in the San Mateo, San Mateo County, California, USA program. This directory currently shows acceptance in San Mateo, San Mateo County, California, USA. Source context comes from City of San Mateo / Community Planning Collaborative, last checked Jul 28, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Provider record
Inspired ADUs

Details

Plan facts

Plan identifier
Not listed in source
Provider
Inspired ADUs
Accepted locations
Status
Pre-approved
Size
992 sq ft
Bedrooms
2 beds
Bathrooms
Not listed in source
ADU type
Prefab
Construction type
Prefab
Plan fee
Not listed in source
Estimated cost
$440,000 to $535,000
Last checked
Jul 28, 2026

Plan notes

Notes

Foundation notes
The City guide requires omitted site-specific foundation details and a State/HCD Design Approval Agency stamp for applicable factory-built plans; local site review remains required.
Utility notes
Site-specific utility routing and connection review remains required. New detached ADUs may require separate connections and proportional connection or capacity charges under current City code.
Energy notes
The City guide requires applicable Title 24 energy documentation and CALGreen information during plan pre-approval; project-specific compliance remains subject to City review.
Accessibility notes
The provider marks 'Accessibility features' in the City gallery. No independent accessibility-code compliance conclusion was inferred.
Permit fee notes
The adopted 2026–27 City schedule lists $1,455.43 for eligible manufactured, prefab, or pre-approved ADU review. Other site, utility, impact, professional, and construction charges may apply. Because the listed area exceeds 750 square feet, proportional development impact fees may apply under current City code.
Cost notes
Provider-submitted City-gallery range. Crane/semi access is required for modular installation; power lines, narrow roads, trees, utilities, and slopes may change feasibility or cost.
Additional notes
City gallery catalog record a0APk000006t6HRMAY. The City-specific gallery lists the design as State of California (HCD)-certified, but it is not in the gallery's locally confirmed-plan-ID list. The controlled approval_status 'preapproved' records the external agency certification plus City listing; it is not parcel or building-permit approval. Phase 2 City site-specific review remains required, and the streamlined path does not allow design modifications. The direct document URL is a floor-plan image, not a complete permit-ready plan set. Provider-submitted gallery features: All-electric;In-unit washer/dryer;Solar-ready;Accessibility features;Turnkey project. Bathrooms source value '2+' is a range/open-ended value and was preserved here rather than forced into the scalar column. No explicit public statement established that the plan license is free; plan_fee remains NULL.

Source and evidence

Modular Millie 2 2 L shape

Official city source
Publisher
City of San Mateo / Community Planning Collaborative
Source type
Plan catalog
Reliability
Official city/county/state government source (5/5)
Last checked
Jul 28, 2026
Accessed
Jul 28, 2026

Accepted-in locations

Accepted Locations

1 accepted location

Source
Modular Millie 2 2 L shape
Last checked
Jul 28, 2026
Additional notes
City gallery catalog record a0APk000006t6HRMAY. The City-specific gallery lists the design as State of California (HCD)-certified, but it is not in the gallery's locally confirmed-plan-ID list. The controlled approval_status 'preapproved' records the external agency certification plus City listing; it is not parcel or building-permit approval. Phase 2 City site-specific review remains required, and the streamlined path does not allow design modifications. The direct document URL is a floor-plan image, not a complete permit-ready plan set. Provider-submitted gallery features: All-electric;In-unit washer/dryer;Solar-ready;Accessibility features;Turnkey project. Bathrooms source value '2+' is a range/open-ended value and was preserved here rather than forced into the scalar column. No explicit public statement established that the plan license is free; plan_fee remains NULL.