[3] The Valenzuela National High School – Bignay Annex began its first year of operation in 2004.

The school was funded by the City Government of Valenzuela through then-Mayor Jose Emmanuel L. Carlos.

In its second year of operation (SY 2005–2006), the high school was separated from the elementary with Mrs. Lagrimas Bayle as its Officer-in-Charge from May to August 2005.

The enrollment ballooned to 885 students because of the relocation of the families along the railways of Caruhatan, Malinta, Dalandanan, and Malanday due to the government's Northrail Project.

For its facilities, the City Government also provided the school with 50 computer units, a spacious activity center, and a new canteen.

Through the years, two additional buildings were built inside the vicinity of the campus to cater the growing population of Bignay and its neighboring barangays.