[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
As you know, we have been hard at work for months, preparing to relocate our entire company to our new location. At long last, we have moved and are beginning to get settled. To celebrate this move and the continued success that it represents, we will be holding an open house on Friday, May 17th from 5 to 8 p.m. This event will, of course, take place at our new location, at 8392 Brandywine Place, Suite 100. Enclosed is a map that will guide you on how to get there.
Please accept this invitation to the open house, and please RSVP via email or phone to Jane at the contact information listed at the bottom of this letter. We certainly hope you can attend and help us celebrate this important milestone in our company’s history. We are looking forward to seeing you on the 17th!
[Sender's first and last names]