instantiateted object oriented wrong

I am working on a game and i am making a system that can spawn buildings. I am now spawning the bottom of the building but it is oriented wrong. It has turned -90 degrees on the x axis and if i change the amount it rotates it is still wrong.

Code (CSharp):

1. using UnityEngine;
2.  
3. public class createBuilding : MonoBehaviour
4. {
5.     public int floors;
6.     public GameObject RoofPrefab;
7.     public GameObject floorPrefab;
8.     public GameObject BottomPrefab;
9.     public Vector3 BuildingPosition;
10.  
11.     void Start()
12.     {
13.        
14.         Instantiate(BottomPrefab, BuildingPosition, new Quaternion(0, 0, 0, 0));
15.     }
16.  
17.     void Update()
18.     {
19.        
20.     }
21. }

 

Is the original BottomPrefab oriented correctly? If not, I'd fix it there.

You didn't mention how you tried to change the amount it rotates.

 

Use Quaternion.identity instead of creating a new quaternion with values of 0. Also generally, since quaternions are complex, use Quaternion.Euler() or quaterions already created by Unity.