Although the thread is tailored towards Tysons, I guess highrises in Reston and Fairfax etc. could be included. For starters, Lerner Enterprises has recently released the design of 1775 Tysons Boulevard (18 stories), with construction beginning in summer '07 with completion in '09. 1725 seems to be under pre leasing, but that building has seemed to be stalled for a few years now. Another interesting development is the multitude of high rises proposed around Tysons I. Hopefully we end up with a real, consolidated downtown in a couple decades!
1775 Tysons Boulevard:
18 stories
23 stories
http://tysons2.com/1775.html
1725 Tysons Boulevard
http://tysons2.com/1725.html
Tysons Corner Center
Residential:
25 stories
23 stories
16 stories
15 stories
Total of 1.6 million SF
Commercial:
18 stories
16 stories
8 stories
4 stories
Total of 1.4 million SF
Hotel:
21 stories
240 rooms, 274,000 SF
Retail:
Street level (restaurants and shops incorporated into the mall)
200,000 SF
http://www.tysonsfuture.com/
Park Crest:
http://www.parkcrestliving.com/files/home.htm
19 Story Tower
19 Story Tower
19 Story Tower
19 Story Tower
13 Story Tower
13 Story Tower
8 Story Tower
All residential
Feel free to add more information about these projects and others (which I'm sure there are) around Tysons Corner!