How Buildings Learn by Stewart Brand is a really great read about the underlying processes that govern the evolution of buildings over time.
The heart of vernacular design is about form, not style. Style is time's fool. Form is time's student.
Specialized space hinders future flexibility.
However much buildings may be sold as a product, they are lived in as a process.
Small invites the metamorphosis of growth.
The difference between style and form is the difference between a statement and a language.