Chief Sealth International High School

Chief Sealth International
High School

Continuous School Improvement Plan and School Profile

Building History

Seattle is a city rich with neighborhoods. Concurrent with the development of those neighborhoods was the birth and development of neighborhood schools. Nile Thompson and Carolyn J. Marr, along with, have published an electronic version of the book that is available to all. Many thanks go to all of the people who contributed to this project!

Access Chief Sealth’s History by clicking this Chief Sealth High School History link.

Access the entire book by clicking this Building for Learning, 1862-2022 link.

Chief Sealth International School Profile

Attendance Area School Attendance Area Map

School Leadership and Board District

Community Partners at Chief Sealth International Community resources and programs at Chief Sealth International High School

Continuous School Improvement Plan (C-SIP)

Chief Sealth International High School C-SIP

The Continuous School Improvement Plan (C-SIP) is an action plan for each school that identifies the areas a school plans to focus on in the current and coming school year, the performance goals they want students to achieve, and how the school plans to collaboratively meet these goals.

The plans are updated regularly to reflect the strategies being used at each school. This document also serves as the school-wide improvement plan for our Title I schools.

School and Building Reports

School Report

Chief Sealth International School Report

School Reports show a brief snapshot of a school’s academic growth, student climate, accountability, family and staff engagement, and overall school performance. School reports are produced by the State Office of Superintendent of Public Instruction for each school and district in the state and updated periodically throughout the year as data becomes available.

On state assessments, students who are expected to participate but do not, such as absences or opting out, are counted as non-proficient. This may affect the school’s overall proficiency rating.

Questions about school reports? Contact the Research and Evaluation Department

School Climate Survey

Chief Sealth International High School Climate Survey

School Climate Surveys are used for school-level improvements, climate surveys are given to all staff, students and families each year. The staff and student surveys are given to respective groups in person at schools; the family survey occurs in the spring.

Building History

Chief Sealth International Building History and Information

Asbestos Hazard Emergency Response Act (AHERA)

Surveillance of known asbestos in the Chief International building is performed every six months by a designated person to assess the condition of the Asbestos Containing Building Materials (ACBM). Six-month assessment results are maintained by the district.

As required under AHERA, Chief Sealth International School must maintain an Asbestos Management Plan (AMP) and keep it on file at the school. The AMP is available for review during school hours, Monday through Friday. For additional information, please contact:

Wendy Couture
Environmental Health and Safety Manager

Discipline Dashboard

As part of Seattle Excellence, Seattle Public Schools’ Strategic Plan, the district is committed to interrupting disproportionate practices in discipline. To support this work and to increase transparency and accountability, the district has created and published public facing discipline dashboards for each school which became available on November 1, 2021.

Discipline dashboard data reflects the current school year and will be updated quarterly throughout the school year. For questions or concerns, please reach out to the school leader for a specific school.

Academic Year: Current academic school year.
Accessible/Default: Click here to switch to an accessible version of the dashboard.
Actions by Month: Count of disciplinary actions by month and exclusion type.
Actions: Count of disciplinary actions for an exclusion type.
Attribute: Student Attribute (gender, race/ethnicity, special education served, 504 plan)
Days: Count of exclusion days for an exclusion type.
Days of Exclusion: Count of exclusion days.
Discipline Rate: Count of students with at least one disciplinary incident divided by count of all enrolled students.
E. Expulsions: Count of emergency expulsions for a student attribute.
Enrolled: Count of enrolled students.
Exclusion Actions: Count of exclusionary actions for a student attribute.
Exclusion Days: Count of exclusion days for a student attribute.
Exclusion Type: Short-term suspension (SS), Long-term suspension (LS), Emergency expulsion (EE), In-school suspension (IS), Expulsion (EX), and Interim alternative education setting (IA).
Exclusionary Actions: Count of exclusionary actions.
Expulsions: Count of expulsions for a student attribute.
FERPA Compliance: Family Educational Rights and Privacy Act Compliance. *
Incidents by Day of Week: Count of disciplinary actions by day of week.
Incidents by Grade: Count of disciplinary actions by grade.
Incidents by Hour: Count of disciplinary actions by hour.
Incidents by Exclusion Type: Count of disciplinary incidents for an exclusion type.
Incidents by Student Attribute or Support Service: Count of disciplinary incidents. Incidents are counted as many times as there are students involved.
Incidents per 100 Students: Count of disciplinary incidents divided by enrolled students and then multiplied by 100. Incidents are counted as many times as there are students involved.
Rate: Discipline rate for an exclusion type.
School Name: School name.
Students: Count of students with at least one disciplinary incident.
Suspensions: Count of suspensions for a student attribute.
Weapons: Count of disciplinary incidents in which a weapon was involved.

* Please note: When a group has fewer than 10 enrolled students, all values for at least the two smallest groups are suppressed.

Chief Sealth International Levy Projects


Levy Approved : 2007

Seattle voters approved a $490 million capital bond, Building Excellence III, in February 2007. The bond helped pay for projects in three categories: building projects, infrastructure and technology improvements.

Project Description

Denny International Middle School and Chief Sealth International High School are co-located on one campus. The modernized Chief Sealth opened Fall 2010, and the newly constructed Denny opened in Fall 2011.

The campus provides separate outdoor student plazas for the high school and middle school students. Landscaping and building forms express environmental sensitivity and a connection to nearby Longfellow Creek. The new Denny building features murals, paving patterns that reflect global diversity, off-street bus loading, new play areas and an environmental learning space.

Chief Sealth International High School’s modernization focused on abating life-safety issues, improving energy efficiency and comfort, revitalizing the school’s appearance inside and out, and creating a superior educational environment.

Denny International Middle School was newly constructed, with the school community moving from a nearby location. The building encourages team learning, a clear and flexible pathway to high school, and provides the many benefits of a 21st-century facility.

A new, large Galleria space between the two schools offers the flexibility of either separate school, joint school, or community use. The light-filled and expressive structure accommodates student services, student activity spaces, large display areas, and dining facilities.

The former Denny International Middle School buildings were demolished and sports fields were built for both district and community use.

Sustainable Features

  • Buildings oriented to maximize daylighting and ventilation
  • Green roofs
  • Drought-tolerant landscaping
  • Energy-efficient heating and lighting systems
  • Radiant floor heating
  • Natural ventilation in Galleria
  • Thermal windows


Levy Approved : 2001

The $398 million Building Excellence II (BEX II) was approved by Seattle voters in 2001 to replace the expiring BEX I Capital Levy. It paid for renovation or new construction of schools throughout the district.

Project Description

The facility was modernized to support the school’s transformation plan. Scope of work included creation of a new student commons and building entry, renovating the library, upgrading a ninth grade classroom for collaborative teaching, creating a multiple-use science lab, and remodeling the metal shop area to become the math academy. Project area is 37,000 square feet.

  • Building Size: 211,695 gross square feet
  • Capacity: 1,066 students (grades 9-12)
  • Site Size: 17.4 acres
  • Total Cost: $3.8 million
  • Completion Date: September 2004
  • Architect: Sierra-Martin Architects
  • Contractor: Kessel Construction, Inc.

About BEX

The Building Excellence (BEX) Capital Levy funds projects such as those that modernize or replace aging buildings, fund technology for student learning, address earthquake and safety issues and major preventive maintenance needs throughout the district.


In February 2010, the $270M, six-year capital Levy, Buildings, Technology and Academics III (BTA III), garnered support from 73.45 percent of those voting in the Levy election. It was a renewal of the Buildings, Technology and Athletics (BTA II) Levy, passed by voters in February 2004.

  • 2012 : Restriped parking lot


In 2004, Seattle voters approved the BTA II capital Levy. The Levy funded nearly 700 facility improvement projects and technology upgrades at every school in the district. 

  • 2006 : Roof, Exterior Restoration, Mechanical, ADA, Floor


The $150 million Buildings, Technology and Academics/Athletics (BTA I) capital Levy was approved by voters in February 1998. BTA I funded more than 465 small and large facility projects at every school in the city. The projects included safety and security upgrades, roof and window replacements and technology and athletic field upgrades.

  • 2000 : Reroofing, Power Upgrade, Gym Upgrade, Arts & Science Technology
  • 2000 : Athletic Fields Upgrades
  • 1999 : Replace Gym Athletic Scoreboards
  • 1999 : Wide Area Network

About BTA

The Buildings, Technology and Academics (BTA) Capital Levy supports the district’s long-range plans to upgrade and renovate aging school facilities and address enrollment growth.

The BTA IV Capital Levy was approved by voters in 2016. Seattle Public Schools will receive these Levy funds from 2017 through 2022.

Enroll at Chief Sealth International