apartments
architect
architecture
blue
blueprint
builder
building
business
businessman
construct
construction
constructor
contractor
control
development
drawing
engineer
estate
foreman
foremaster
hardhat
hat
head
helmet
horizontal
house
industrial
industry
laborer
maintenance
male
man
manager
occupation
paper
people
plan
professional
project
protection
real
safety
safety vest
security
site
structure
technician
technology
work
worker