Markets
Visualizing 1 Billion Square Feet of Empty Office Space
1 Billion Square Feet of Empty Office Space
In April, one of America’s largest office owners, Brookfield, defaulted on a $161 million loan.
The loan, covering 12 office buildings, was mainly concentrated in the Washington, D.C. market. Faced with low occupancy rates, it joined other office giants Blackstone and WeWork defaulting on office debt this year.
The above graphic shows nearly 1 billion square feet of empty office space in the U.S. based on data from JLL—and the wider implications of office towers standing empty.
Ranking U.S. Cities by Empty Office Space
At the end of the first quarter of 2023, a record 963 million square feet of office space was unoccupied in America. An estimated five to 10 office towers are at risk of defaulting each month according to Manus Clancy, senior managing director at Trepp.
Here are cities ranked by their total square feet of office vacancy as of Q1 2023. Figures include central business districts and suburban areas.
Ranking | Market | Total Vacancy (SF) | Total Vacancy (%) |
---|---|---|---|
1 | New York | 75.8M | 16.1% |
2 | Washington, D.C. | 74.0M | 20.8% |
3 | Chicago | 63.2M | 23.5% |
4 | Dallas | 53.5M | 25.0% |
5 | Houston | 49.3M | 25.6% |
6 | Los Angeles | 47.1M | 24.1% |
7 | New Jersey | 43.3M | 25.8% |
8 | Atlanta | 38.1M | 21.6% |
9 | Boston | 31.8M | 19.1% |
10 | Philadelphia | 27.8M | 18.8% |
11 | Denver | 27.3M | 21.6% |
12 | Phoenix | 25.2M | 23.9% |
13 | San Francisco | 22.8M | 26.4% |
14 | Seattle | 21.4M | 17.7% |
15 | Minneapolis | 19.9M | 19.7% |
16 | Detroit | 18.0M | 19.3% |
17 | Orange County | 17.7M | 17.6% |
18 | Salt Lake City | 13.9M | 18.5% |
19 | Kansas City | 13.8M | 20.8% |
20 | Pittsburgh | 13.8M | 21.8% |
21 | Charlotte | 13.7M | 20.6% |
22 | Austin | 13.6M | 18.9% |
23 | Baltimore | 13.1M | 18.2% |
24 | Portland | 12.8M | 17.5% |
25 | Silicon Valley | 12.1M | 17.3% |
26 | Oakland–East Bay | 11.7M | 22.0% |
27 | San Diego | 10.7M | 12.3% |
28 | St. Louis | 10.5M | 21.9% |
29 | Cincinnati | 10.1M | 21.4% |
30 | Sacramento | 9.9M | 19.6% |
31 | Fairfield County | 9.7M | 25.4% |
32 | Columbus | 9.7M | 21.7% |
33 | Milwaukee | 9.2M | 24.0% |
34 | Nashville | 9.0M | 18.9% |
35 | Raleigh-Durham | 8.9M | 15.2% |
36 | Indianapolis | 8.6M | 22.4% |
37 | Tampa | 8.2M | 17.2% |
38 | Fort Worth | 7.6M | 16.7% |
39 | Miami | 7.6M | 16.2% |
40 | Cleveland | 7.3M | 18.3% |
41 | San Antonio | 7.2M | 17.8% |
42 | Long Island | 6.3M | 15.2% |
43 | Westchester County | 5.8M | 22.1% |
44 | Jacksonville | 5.4M | 18.6% |
45 | Orlando | 5.0M | 13.3% |
46 | San Francisco Peninsula | 4.4M | 13.3% |
47 | Richmond | 4.3M | 13.3% |
48 | Fort Lauderdale | 4.3M | 16.1% |
49 | North San Francisco Bay | 4.0M | 18.3% |
50 | Louisville | 3.6M | 16.8% |
51 | Des Moines | 3.2M | 12.0% |
52 | Hampton Roads | 3.1M | 14.7% |
53 | West Palm Beach | 2.4M | 10.3% |
54 | Grand Rapids | 1.8M | 13.2% |
United States | 962.5M | 20.2% |
Numbers may not total 100 due to rounding.
New York has roughly 76 million square feet of empty office space. If this were stacked as a single office building, it would stretch 7 miles into the atmosphere. In 2019, the office sector accounted for about a third of all jobs in the city.
Falling closely behind is Washington, D.C. with a 21% vacancy rate—8% higher than what is typically considered healthy. Occupiers are downsizing given remote work trends, yet some office buildings are being converted to residential properties, curtailing vacancy rates.
Across 54 markets in the dataset, San Francisco has the highest vacancy rate at over 26%. Prior to the pandemic, vacancy rates were about 4%. This year, Salesforce walked away from a 30-story tower in downtown San Francisco spanning 104,000 square feet in an effort to cut costs.
Overall, rising interest rates and higher vacancies have hurt U.S. office markets, with many cities potentially seeing an uptick in vacancies going forward.
Empty Office Space: Impact on Banks
Office building valuations are projected to fall 30% in 2023 according to Richard Barkham, global chief economist at CBRE Group.
A sharp decline in property values could potentially result in steep losses for banks. This is especially true for small and regional banks that make up the majority of U.S. office loans. Big banks cover roughly 20% of office and downtown retail totals.
Consider how commercial real estate exposure breaks down by different types of banks:
Bank Assets | Commercial Real Estate Loans % of Total Assets | Share of Industry Assets |
---|---|---|
<$100M | 11.3% | 0.2% |
$100M-$1B | 26.9% | 4.7% |
$1B-$10B | 32.5% | 9.7% |
$10B-$250B | 18.1% | 30.1% |
>$250B | 5.6% | 55.5% |
Source: FitchRatings
For big banks, a recent stress test by the Federal Reserve shows that a 40% decline in commercial property values could result in a $65 billion loss on their commercial loan portfolios. The good news is that many big banks are sitting on healthy capital reserves based on requirements set in place after the global financial crisis.
Smaller banks are a different story. Many have higher loan concentrations and less oversight on reserve requirements. If these loan portfolios deteriorate, banks may face a downgrade in ratings and higher credit losses.
Additionally, banks with loans in markets with high vacancy rates like San Francisco, Houston, and Washington, D.C. could see more elevated risk.
How High Rates Could Escalate Losses
Adding further strain are the ramifications of higher interest rates.
Higher rates have negatively impacted smaller banks’ balance sheets—meaning they are less likely to issue new loans. This is projected to cause commercial real estate transaction volume to decline 27% in 2023, contributing to lower prices. Banks have already slowed lending for commercial real estate in 2023 due to credit quality concerns.
The good news is that some banks are extending existing loan terms or restructuring debt. In this way, banks are willing to negotiate new loan agreements to prevent widespread foreclosures from hurting their commercial loan portfolios. Short-term extensions on existing loans were often seen during the global financial crisis.
Still, foreclosures could take place if restructuring the loan doesn’t make financial sense.
Overall, only so many banks may be willing to wait out the uncertainty with loan extensions if fundamentals continue to worsen. Offices that are positioned to weather declines will likely have better quality, location, roster of tenants, and financing structures.
Mining
Ranked: The World’s Top Diamond Mining Countries, by Carats and Value
Who are the leaders in rough diamond production and how much is their diamond output worth?

Ranked: World Diamond Mining By Country, Carat, and Value
Only 22 countries in the world engage in rough diamond production—also known as uncut, raw or natural diamonds—mining for them from deposits within their territories.
This chart, by Sam Parker illustrates the leaders in rough diamond production by weight and value. It uses data from Kimberly Process (an international certification organization) along with estimates by Dr. Ashok Damarupurshad, a precious metals and diamond specialist in South Africa.
Rough Diamond Production, By Weight
Russia takes the top spot as the world’s largest rough diamond producer, mining close to 42 million carats in 2022, well ahead of its peers.
Russia’s large lead over second-place Botswana (24.8 million carats) and third-ranked Canada (16.2 million carats) indicates that the country’s diamond production is circumventing sanctions due to the difficulties in tracing a diamond’s origin.
Here’s a quick breakdown of rough diamond production in the world.
Rank | Country | Rough Diamond Production (Carats) |
---|---|---|
1 | 🇷🇺 Russia | 41,923,910 |
2 | 🇧🇼 Botswana | 24,752,967 |
3 | 🇨🇦 Canada | 16,249,218 |
4 | 🇨🇩 DRC | 9,908,998 |
5 | 🇿🇦 South Africa | 9,660,233 |
6 | 🇦🇴 Angola | 8,763,309 |
7 | 🇿🇼 Zimbabwe | 4,461,450 |
8 | 🇳🇦 Namibia | 2,054,227 |
9 | 🇱🇸 Lesotho | 727,737 |
10 | 🇸🇱 Sierra Leone | 688,970 |
11 | 🇹🇿 Tanzania | 375,533 |
12 | 🇧🇷 Brazil | 158,420 |
13 | 🇬🇳 Guinea | 128,771 |
14 | 🇨🇫 Central African Republic | 118,044 |
15 | 🇬🇾 Guyana | 83,382 |
16 | 🇬🇭 Ghana | 82,500 |
17 | 🇱🇷 Liberia | 52,165 |
18 | 🇨🇮 Cote D'Ivoire | 3,904 |
19 | 🇨🇬 Republic of Congo | 3,534 |
20 | 🇨🇲 Cameroon | 2,431 |
21 | 🇻🇪 Venezuela | 1,665 |
22 | 🇲🇱 Mali | 92 |
Total | 120,201,460 |
Note: South Africa’s figures are estimated.
As with most other resources, (oil, gold, uranium), rough diamond production is distributed unequally. The top 10 rough diamond producing countries by weight account for 99.2% of all rough diamonds mined in 2022.
Diamond Mining, by Country
However, higher carat mined doesn’t necessarily mean better value for the diamond. Other factors like the cut, color, and clarity also influence a diamond’s value.
Here’s a quick breakdown of diamond production by value (USD) in 2022.
Rank | Country | Rough Diamond Value (USD) |
---|---|---|
1 | 🇧🇼 Botswana | $4,975M |
2 | 🇷🇺 Russia | $3,553M |
3 | 🇦🇴 Angola | $1,965M |
4 | 🇨🇦 Canada | $1,877M |
5 | 🇿🇦 South Africa | $1,538M |
6 | 🇳🇦 Namibia | $1,234M |
7 | 🇿🇼 Zimbabwe | $424M |
8 | 🇱🇸 Lesotho | $314M |
9 | 🇸🇱 Sierra Leone | $143M |
10 | 🇹🇿 Tanzania | $110M |
11 | 🇨🇩 DRC | $65M |
12 | 🇧🇷 Brazil | $30M |
13 | 🇱🇷 Liberia | $18M |
14 | 🇨🇫 Central African Republic | $15M |
15 | 🇬🇾 Guyana | $14M |
16 | 🇬🇳 Guinea | $6M |
17 | 🇬🇭 Ghana | $3M |
18 | 🇨🇲 Cameroon | $0.25M |
19 | 🇨🇬 Republic of Congo | $0.20M |
20 | 🇨🇮 Cote D'Ivoire | $0.16M |
21 | 🇻🇪 Venezuela | $0.10M |
22 | 🇲🇱 Mali | $0.06M |
Total | $16,290M |
Note: South Africa’s figures are estimated. Furthermore, numbers have been rounded and may not sum to the total.
Thus, even though Botswana only produced 59% of Russia’s diamond weight in 2022, it had a trade value of nearly $5 billion, approximately 1.5 times higher than Russia’s for the same year.
Another example is Angola, which is ranked 6th in diamond production, but 3rd in diamond value.
Both countries (as well as South Africa, Canada, and Namibia) produce gem-quality rough diamonds versus countries like Russia and the DRC whose diamonds are produced mainly for industrial use.
Which Regions Produce the Most Diamonds in 2022?
Unsurprisingly, Africa is the largest rough diamond producing region, accounting for 51% of output by weight, and 66% by value.
Rank | Region | Share of Rough Diamond Production (%) | Share of Rough Diamond Value (%) |
---|---|---|---|
1 | Africa | 51.4% | 66.4% |
2 | Europe | 34.9% | 32.9% |
3 | North America | 13.5% | 52.8% |
4 | South America | 0.2% | 2.4% |
However diamond mining in Africa is a relatively recent phenomenon, fewer than 200 years old. Diamonds had been discovered—and prized—as far back as 2,000 years ago in India, later on spreading west to Egyptian pharaohs and the Roman Empire.
By the start of the 20th century, diamond production on a large scale took off: first in South Africa, and decades later in other African countries. In fact between 1889–1959, Africa produced 98% of the world’s diamonds.
And in the latter half of the 20th century, the term blood diamond evolved from diamonds mined in African conflict zones used to finance insurgency or crime.
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