Uncaught TypeError: Cannot read properties of undefined (reading ‘building’) in React JS

I’m writing React JS web application and i have this code:

import React,{useEffect,useState} from 'react'
import {useParams} from 'react-router-dom'
import {Card} from 'react-bootstrap'

import {MapContainer, TileLayer, Market} from 'react-leaflet'

const Restaurant=()=>{
    const {id}=useParams();
    const [restaurant,setRestaurant]=useState([]);
    const [loading,setLoading]=useState(true);
    const url=`http://localhost:8080/api/restaurants/${id}`;

    useEffect(()=>{

        setLoading(true);
        fetch(url)
        .then(data=>data.json())
        .then(res=>{
            if(res.hasOwnProperty('_id'))
            setRestaurant(res);
            else
            setRestaurant([]);
            console.log(res);
        })
        .catch((err)=>console.log('There was an error',err));
       setLoading(false);

    },[id, url]);

    return(
        //id in params
        // <p>Restaurant id:{id}</p>
        <>
         <Card>

<Card.Body>
    <Card.Title>{restaurant.name}
        </Card.Title>

      
  
<Card.Text>{restaurant.address.building+' '+ restaurant.address.street}</Card.Text>

</Card.Body>
</Card>

        </>

    )

}

export default Restaurant;

After the fetch I get the Object with restaurants and save it to the restaurant hook using setRestaurant.

But for some reason, {restaurant.name} works fine, but {restaurant.address.building+' '+ restaurant.address.street}
does not work and it says cannot read properties of undefined.

Can someone please help me solve this issue?