The “power of one” approach to multi-property SEO
The reflex when launching something new is to give it its own site. For organic, that reflex usually costs more than it returns.
Authority does not split well
Every new domain starts from zero trust and competes with your own properties for the same queries. Consolidating topics onto one well-structured site lets links, internal connections, and crawl reinforce each other instead of diluting.
It is the approach that let a single gallery site outrank a much larger global counterpart: one property, done properly, carrying the whole topic.