How many buildings are in the US?

How would you guys solve this market sizing q? I would first start with residential vs. commercial vs. industrial. However, I'm really not too sure if this is the best approach and would love any thoughts anyone may potentially have. I think my logic is especially shaky for industrial - thanks guys!

Residential:
- Assume 100M households in US (300M people / 3 ppl per household on average)
- Assume, on average, 1 house / apt per household (richer people will have more, some may be homeless, average is probably 1)
- Result: 100M buildings

Commerical (corporations, malls, churches, mom-pop stores, etc)
- Assume 300M ppl in US
- Assume at any given time, ~80% of the US population (240M) is in a commercial building due to work, leisure, etc
- Assume one person takes up, on average, 200 sq ft in each building (since they need room to move around and such, tell me if my logic here is off) so we need enough buildings to fit 48B sq ft
- Assume average building size is 5K sq ft
- Result: ~10M buildings (48B/5K)

Industrial (factories, warehouses, etc.)
- Would likely assume same number of buildings as commercial, as there are probably less people in these buildings on any given day, but they probably have 5-10x the amount of space available to them given safety constraints
- Result: ~10M buildings

Overall: ~120M buildings in the US

 
Best Response

Voluptatem ullam magni eos maiores vel et eum. Iste asperiores eos nemo architecto. Labore eligendi ipsum enim itaque necessitatibus dolore.

Eveniet nemo amet sunt vel ut non. Earum dolorem quas necessitatibus repellat.

Career Advancement Opportunities

July 2024 Consulting

  • Bain & Company 99.4%
  • McKinsey and Co 98.9%
  • Boston Consulting Group (BCG) 98.3%
  • Oliver Wyman 97.7%
  • LEK Consulting 97.2%

Overall Employee Satisfaction

July 2024 Consulting

  • Bain & Company 99.4%
  • Cornerstone Research 98.9%
  • Boston Consulting Group (BCG) 98.3%
  • McKinsey and Co 97.7%
  • Oliver Wyman 97.2%

Professional Growth Opportunities

July 2024 Consulting

  • Bain & Company 99.4%
  • McKinsey and Co 98.9%
  • Boston Consulting Group (BCG) 98.3%
  • Oliver Wyman 97.7%
  • LEK Consulting 97.2%

Total Avg Compensation

July 2024 Consulting

  • Partner (4) $368
  • Principal (25) $277
  • Director/MD (55) $270
  • Vice President (48) $246
  • Engagement Manager (101) $227
  • Manager (153) $170
  • 2nd Year Associate (159) $140
  • Senior Consultant (331) $130
  • 3rd+ Year Associate (108) $130
  • Consultant (594) $120
  • 1st Year Associate (542) $119
  • NA (15) $119
  • 3rd+ Year Analyst (148) $116
  • Engineer (6) $114
  • 2nd Year Analyst (348) $103
  • Associate Consultant (167) $98
  • 1st Year Analyst (1053) $87
  • Intern/Summer Associate (190) $83
  • Intern/Summer Analyst (558) $67
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”