Waltham-based Vantage Builders Inc. has completed a $400,000 renovation project for Rockwood Capital LLC and Griffith Properties LLC in Waltham.

The multi-phase project at 275 Second Ave. included new office space, a new fitness center, cafeteria upgrades and lobby improvements. 

Working from design plans from LaFreniere Architects, Vantage installed a demising wall on the first floor, dividing equally a 2,600 square foot area.  One side features new office space, the other a fitness center for tenant use.  

The new office space features upgraded millwork, carpeting and painting. The firm renovated the women’s and men’s shower rooms with new tiling throughout, milled lockers and new ceilings. An IT room and kitchen area were also created. 

Renovations to the first floor cafeteria include millwork, installation of new kitchen equipment and serving stations, enhanced lighting, new flooring and ceilings and painting.  The building’s second floor lobby was redesigned, with new flooring, painting and accent lighting.  Access to the tenant areas on the second floor was made more welcoming with the installation of new glass entry doors.

“Waltham Place is a busy, active location for a diverse group of tenants,” Denise Regan, senior project manager at Vantage Builders, said in a statement.  “We were very mindful of their business and aimed at finishing the project as quietly, quickly and efficiently as possible.  We were able to complete the entire project within four weeks, with minimal disruption to the tenants.”

 The property at 275 Second Ave. is part of Waltham Place, a two-building campus owned by Rockwood and managed by Griffith.  Ownership hired Vantage as part of its capital upgrade program for the buildings.