The top reported proficiency rate is 51% in English language arts. The lowest is 38% in Science.
Original Research by School Decision on Addenbrooke Classical Grammar School
Addenbrooke Classical Grammar School is a public charter school in Lakewood, Colorado, serving students from preschool through eighth grade within the Jefferson County R-1 district. As a charter school, it operates as a regular public school with its own governance and educational approach, open to all students in the district without admission tests or tuition.
On state assessments, roughly half of students scored proficient or above in English language arts, while just under half did so in math. In science, about two in five students at both fifth and eighth grade reached proficiency. ELA performance stands as the strongest subject area, while math and science are somewhat lower. Parents may want to discuss with the school how it supports students in those subjects. Participation rates on tests were very high, indicating strong engagement with state assessments.
The student body is substantial for a PK-8 school, with class sizes that are fairly consistent across grades. The population is predominantly white, with a sizeable Hispanic share and smaller numbers of Asian, Black, and multiracial students. Data on economic disadvantage, special education enrollment, and English learner status was not available in the source materials, so families interested in those support systems should ask the school directly. Because the school ends at eighth grade, families will need to plan for high school options within Jeffco or elsewhere.
The school sits in Lakewood, a large suburban city immediately west of Denver. Lakewood is auto-oriented, with development concentrated along major highways and arterial roads. The Belmar district offers a walkable, mixed-use center with retail, apartments, and civic spaces, but the city as a whole is not pedestrian-friendly. Home values in the area run above the national median, and rents consume a notable share of typical household income, making housing relatively expensive compared to incomes. The local economy is anchored by the Denver Federal Center, Jefferson County schools, St. Anthony Hospital, and several corporate headquarters including FirstBank. Population growth has slowed compared to the city's mid-century boom, with recent development focused on redevelopment projects like Belmar and the light rail corridor.
Jefferson County R-1, the parent district, has seen significant changes recently that may affect families. In 2024, voters approved a bond measure for capital improvements, safety upgrades, and technology across the district, the first since a previous bond in 2018, signaling investment in physical infrastructure. The district also adopted a new elementary literacy curriculum aligned with Colorado's reading requirements. Meanwhile, a controversial plan to close 16 schools was announced and then reversed after community backlash, and a committee is now studying consolidation options. In late 2024, three school board members were recalled and replaced, shifting the board's composition. These developments mean district families face ongoing uncertainty about potential school boundary changes and closures, though the recent bond shows a commitment to improving facilities. No further detail on programs, extracurriculars, or staffing was available; families should contact the school directly for that information.
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