Mission Middle School

Escondido, CA

Project Overview

Mission’s blended expansion updates space while creating cohesion.

Escondido USD had dual goals for the Mission Middle School modernization: to add a large amount of space quickly, within budget, while organically blending and flowing new and existing buildings. AMS worked with the district to create a custom design for the Mission site, bridging two new AMS FORM two-story towers together to create a center courtyard, with a second bridge connecting the new space to an adjacent two-story building. AMS adapted a DSA-PC design to optimize the site layout, combining 21 classrooms, four science labs, restrooms, offices and workrooms in the 30,000 SF addition. Custom bump-outs, aluminum sunshades and Hardie panel siding architecturally enhance exteriors to blend new and old. Upgraded finishes—Koroseal wall coverings, LVT and ceramic tile flooring—elevate interiors.

Unified design creates a visual and physical flow between buildings
Strategic placement of non-operable windows maximizes daylighting
Full-height ceramic tile restroom walls are durable and low-maintenance

Video: The Result

Client

Escondido Unified School District

Brand

AMS FORM

Size

30,000 SF

Project Scope

2 two-story buildings
21 classrooms + 4 science labs

Status

Completed Fall 2025

AMS was selected over several construction methods based on cost and to minimize on-site construction time by bringing in prebuilt structures. This minimized our disruption to the school site and allowed our site contractor to prepare the site and buildings’ utilities. Throughout the design and construction process, the AMS process flowed well and met the District’s expectations. We felt this was the best solution for us, and it shows.