Intrapersonal drawbacks of landscaped open spaces
A partial answer to the question.

Literature about before/after comparisons may be found searching for the phrase "office redesign". 

For example:

McElroy, J. C., &amp; Morrow, P. C. (2010). Employee reactions to office redesign: A naturally occurring quasi-field experiment in a multi-generational setting. Human Relations, 63(5), 609–636.