Hi A and thanks for the post.
To be frank, most buyers feel that a public elementary school with an API of 800 or more is an asset in terms of home value, purchase price and resale. Although an API score is the state's public school report card, it is based on the performance of students through a standardized test, the STAR test, given yearly to students in grades 2 thru 12. Because the API score can be broken down into both current and previous years performance, performance by race, and performance by grade, the API also necessarily provides parents with school demography and student population profiles.
Now as for Ellis, a score of 858 is certainly good and the school has consistently achieved its academic goals for the year. However, it is not the highest rated nor the best performing school (based solely on API scores) in the Sunnyvale area. Schools in West Sunnyvale have elementary schools in 900-960 API score range,and it is because these schools are also a part of the Cupertino School District that housing prices and demand in these areas can be so very competitive.
But the real question to ask yourself is, what is public school education worth to me and my family? Is private school an option? Sometimes the trade-off between affordable housing and buying into a more highly desired school district is worth the trade especially if your child is on the cusp of going to middle or high school where the districts overlap into your desired school area. These are questions and issues to explore with each purchase.
So talk with your family members, even visit the school to get more information, and look at the full API report for the school before making your decision. There is so much more in the API reports...simply looking at a one digit ranking is not the full picture of the academic institution.
Cherry Chase Elementary School Alumni, Sunnyvale, Ca