1) Classical architecture style 2) In the Roman style 3) Like much Renaissance art 4) Roman 
• (v. t.) To render Italian, or conformable to Italian customs; to Italianize. • (a.) Italianized; Italianated.
Having an Italian style or appearance
The Italianate style developed in England out of the picturesque movement of the 1840s - a rebellion against the formal classical styles that had dominated art and architecture for the previous 200 years. A reinterpretation of Italian Renaissance country villas.
I·tal'ian·ate transitive verb [ Confer Italian italianare .] To render Italian, or conformable to Italian customs; to Italianize. [ R.] Ascham.