What was worn down, unused, and decaying has gotten a new life on the streets of Allentown, PA.

For a city once affected by changes in business economics and a lack of focused investment in its downtown, this major corridor of the Northeast is now rebuilding into a thriving metropolis again.

With major investors such as City Center, PPL, Morgan Stanley, and others, buildings and lots in the city’s main district have been taking on a new shape over the past few years.

From business office towers to entertainment arenas, and restaurants to arts venues, many street corners have transformed.

RETTEW has played a role by providing services such as surveying, safety consulting, engineering designs, and land permitting to the development movement.

This video depicts many before and after shots, including Three City Center on Hamilton Street where RETTEW’s Lehigh Valley office calls home. Take a look at these incredible changes!