Regula I had sections dedicated to geoplastics, gravitronics, synthostasis/JBK sensors (located in Module 31) and the main Project Genesis laboratory in the thermonics section. (Star Trek II: The Wrath of Khan)
The laboratory of the Tanuga IV research station was the central location of the science station. It consisted of a large open room with 4 windows and several computers and consoles. Dr. Apgar's Krieger wave converter was located at the center of the laboratory, easily accessible from all sides. Two smaller computer workstations were located at a higher level of the laboratory, close to two corridors leading away from the lab. One lead to the living area and another to the communications station. People beaming onto the station were normally transported onto the lower level of the lab. (TNG: "A Matter of Perspective")
The living area was the part of the station were the Apgars' personal rooms were located. The major living room was painted green and featured several black leather couches next to a large glass table. Several pieces of art were found in the room, some on a wide sill beneath a large pink window. (TNG: "A Matter of Perspective")
Our guest quarters aren't luxurious... but I've tried to make this room warm... and inviting. The guest quarters were decorated by Manua Apgar. She considered the room her sanctuary, a place where she could be on her own on the small station for a while. The walls were painted purple and the room featured a large bed, a table and couches, several cabinets, flowers and pieces of art.
This station type's transporter room consisted of a transporter pad with five positions, used to transport equipment and personnel, all controlled from an adjacent transporter console. (Star Trek II: The Wrath of Khan)
This design was described in the script for The Wrath of Khan as "a functional cluster of modules serve as a scientific complex, a futuristic White Sands." In the script for "A Matter of Perspective" it was described simple as "a small space station", while the script for "Blaze of Glory", likewise described it, generically, as "a Federation-style Starbase."