It is 1970. Planet Earth is uninhabitable - the Cold War got very hot. The Earth's entire population is floating through space in giant transport ships.
They've found another habitable(ish) world. Unfortunately, it's got 5 times Earth's gravity.
Now, I'm going to handwave away several things - we're ignoring how they got everyone into space or onto the planet, we're ignoring the fact that biological humans likely wouldn't survive on a planet with such gravity, and we're ignoring how they get hold of building materials on the planet.
Given this planet, and resources like Earth's, does a 1970's society have the knowledge to build buildings similar to those we have here? If not, at what year are humans technologically advanced enough in materials science, etc, to do so? Assume the people have the required materials and 1970's technology at their disposal without having to make or acquire it; further assume that they don't have to worry about their survival (food, etc.).
An ideal answer here will combine some materials science, some history, and some social dynamics to come up with a solution.