Marin Horizon School

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Bird's eye exterior rendering of school campus buildings, play area, basketball court, and lawn
Ground-level exterior rendering of play areas with children playing with school structure in the background

Project Information


Mill Valley, CA


New library and learning center / Additional classrooms / New restrooms / New multi-use assembly building / New playground, turf field and other site improvements


$12 Million (Phase 1 & 2)


Summer 2020 (Phase 1)


Gelfand Partners Architects, Inc.




Capital Campaign

Project Description

This Montessori inspired independent pre-K-8 coed school challenges students to be self-reliant thinkers, and confident, creative individuals who are mindful of others and the world in which we live. 

Through an extensive planning process, the school has identified several critical improvements required to address the educational needs of its community.

The proposed plan replaces three aging portables with an upgraded library and learning center space with additional classrooms, new restrooms, and a new multi-use space that allows the entire school community to gather indoors in one location.

The project will be completed in two phases.  The first phase includes the replacement of a 2,740 SF portable with a new two-story 4,144 SF library, learning center and new classrooms.   The building is designed as an infill structure on the current library portable site, set into the hillside, and nestled between the upper school and primary classroom buildings. A small (424 SF) restroom building will also be added near the new library.

Phase II anticipates the construction of a one-story 5,285 SF multi-use building tucked into the hillside on the site of the existing assembly steps.

Each phase also includes the reconfiguration of the outdoor play space to reflect the new building footprints, along with new landscaping, bio swales, trees and garden areas throughout the site.

The multi-use building will be a flexible space that can accommodate a variety of uses such as school community meetings, arts activities, indoor play and lunchroom space.

The County of Marin Planning Department recently approved the Planning / Design Review application for both phases of the project.

Fact Sheet
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