A brace of buildings in Birmingham's Colmore business district took home honours at the 2015 British Council for Offices Midlands Awards.
Cundall's office on the fourth floor of Cathedral Court, at 15 Colmore Row, was named best project up to 2,000 sq m and 158 & 170 Edmund Street was awarded the title of best refurbished/recycled workplace.
Other winners at the ceremony, which covers the West and East Midlands and East Anglia regions, were Severn Trent Water's office in Shrewsbury (best corporate workplace) and National Grid's base in Warwick (best fit out).
The Da Vinci building, in Cambridge, was put forward as the region's nomination for the national BCO innovation award and no prize was handed out in the best commercial workplace category this year.
The BCO awards recognises top quality office design and functionality.
It was also a fruitful event for Birmingham-based fit out company Overbury which saw four of its projects win awards or be highly commended.
Business development manager and BCO committee member Danny Parmar said: "To have four entries in the awards and see three of those win and go through to the national awards is a fantastic achievement for all the team at Overbury.
"All three projects were designed by external designers so credit should go to them for coming up with award winning schemes.
"We are delighted that we were involved with delivering these projects successfully and part of the winning team."
Overbury worked on Cundall's office, National Grid House at Warwick Technology Park and AstraZeneca's Da Vinci building.
It was also fit out contractor for HQ of Agricultural & Horticultural Development Board on Stoneleigh Park which was highly commended.
The winners from the Midlands and East Anglia Awards will now go forward to the national ceremony in October.