Since the introduction of Autodesk Revit 2011, there is the possibility of inserting a guide grid to align views across the sheet set. This "Guide Grid" command is available under the View tab and on the Sheet Composition panel. By selecting this option a light blue grid object will be inserted on your sheet. You can choose to give it an unique name such as "A1" Guide Grid, and under Properties, you can set the spacing to your requirement such as 25mm.
To insert the same grid with the same location on another sheet, simply open that Sheet View and from the Properties menu, under Guide Grid, select the "A1" Guide Grid that you just created.
With the Revit Guide Grid, you can align your all floor plans, by using the same intersection of the guide grid lines you created. You can resize the Guide Grid bounds to suit your needs. Several guide grid types can be created to align different type of views, such as sections, plans, details, elevations, etc.
Please take note that the alignment snapping works only for Grids, Levels, Reference Planes and view Crop boundaries. It will not work for other entities.
