They later added an addition onto the home in 1828.
It was built in the 11th century and has been added onto several times.
The only way to protect a lead is to add onto it.
In 1870 a Library was added onto the first floor.
When the student population reached 200 in 1912, more space was added onto the structure.
And maybe she'll add onto the studio at her own place.
The challenges have not yet been added onto the new site.
In 1927 the school had a large wing added onto the building.
What's more, you can add someone else onto your line and have a "conference call."
All other routes have been added onto the system since then.