Cost estimate house renovation

Hello everyone, kakaturn over lang ng new house namin in Cavite. Just want to check if meron ba available tools para makapag estimate ng cost for rennovation, example magpatayo ng pader what is the cost for a 2 meter fence? Or may makakatulong sa pag compute libre kita kape hehe kidding.

This is a 120sqm land, just want to kbow para makapagbudget agad for the rennovation. Thia ia also to have an idea if we are going to get a contractor to do the rennovation or we can get different contractors for different jobs.