Create a site collection
This article shows how Office 365 global admins and SharePoint admins can create classic SharePoint Online site collections from the Office 365 admin center.
For info about creating new team sites that are connected to Office 365 groups and communication sites in the new SharePoint admin center preview, see Manage sites in the new SharePoint admin center.
Create a classic site collection
SharePoint Online has several templates for classic site collections. For example, you can create sites for blogs, wikis, record storage, and publishing. Some previous Office 365 plans can have only one site collection. For info, see SharePoint Online limits.
Sign in to Office 365 as a global admin or SharePoint admin.
Select the app launcher icon in the upper-left and choose Admin to open the Office 365 admin center. (If you don't see the Admin tile, you don't have Office 365 administrator permissions in your organization.)
In the left pane, select Resources, and then select Sites.
Select Add a site.
If you don't see the options above, select Admin centers > SharePoint and then select New > Private Site Collection. >
Fill out the new site collection properties:
In the Title box, enter a name for the site collection.
In the Web Site Address drop-down lists , select a domain name and a URL path—either /sites/ or /teams/ —and then type a URL name for the site collection.
In the Template Selection section, in the Select a language drop-down list, select a language for the site collection. You can enable the SharePoint multiple language interface on your sites, but the primary language for the site collection will remain the one you select here.
It's important to select the appropriate language for the site collection, because once it's set, it cannot be changed. After creating a site collection, verify the locale and regional settings are accurate. (For example, a site created for Chinese will have its locale set to China.)
In the Template Selection section, under Select a template, choose the template that most closely describes the purpose of your site collection. For example, if your site collection will be used for a team collaboration, choose Team Site.
For more information on templates, see Using templates to create different kinds of SharePoint sites.
In the Time Zone box, select the time zone that's appropriate for the location of the site collection.
In the Administrator box, type the user name of your site collection administrator. You can also use the Check Names or Browse button to find a user to make site collection administrator.
In the Storage Quota box, type the number of megabytes (MB) you want to allocate to this site collection. Do not exceed the available amount that is displayed next to the box.
In the Server Resource Quota box, accept the resource quota default. This setting no longer affects the resource amounts available for the site collection.
The new site collection will appear in the URL list. The URL is the site collection location at which the administrator can start to create and manage sites.