The concessions have been won following a long running campaign by the Royal Institute of British Architects.
Contractors want to see similar success from construction trade body Build UK.
One contractor said: “Fair play to RIBA they have done a good job here.
“But who is going to build their scheme’s post Brexit?
“I’m not sure what the construction lobbying bodies are doing or if they have any influence whatsoever.”
From January the Tier 1 (Exceptional Talent and Exceptional Promise) visa will be available to applicants from architecture.
RIBA said: “This follows a year of work with partners in government to secure a new route for highly-skilled architects to come to the UK – a significant opportunity for the UK to attract the best and brightest international talent in architecture.”