Phillipstown School has been told it will close, but the community is vowing to fight on.
Principal Tony Simpson said it was a "sad day".
"We have a long, long journey in front of us.
"The minister has decided the merger will be going ahead, from January 2014."
The school will merge with Woolston School.
Address: 39 Nursery Rd, Phillipstown, Christchurch
School type: Full primary (Year 1-8), decile 1
School roll: 163
Staff: 24 teachers, 11 support staff
Building damage: One building has earthquake damage.
Cost to fix school and strengthen it over 10 years: $3.5 million
Land status: Surrounding land is a mixture of technical category 2 and 3.
Rationale for change: The site has liquefaction. Both Phillipstown and Woolston schools have reasonably small rolls and are in an area with an over-supply of primary school places.