Mark Decker
Analyst · Janney
Thank you, Matt, and good morning, everyone. For those of you who saw our press release recently, my updates this morning maybe a bit of old news. But for those who did not, let me recap. On November 30, we announced several key transactions that we closed during and after our fiscal second quarter and provided an update on the sale of our medical office portfolio, which in recent months has been a hot topic, both internally and externally, for our organization. We signed an agreement to sell our medical office portfolio for $417.5 million. This portfolio includes IRET's entire remaining healthcare segment of 28 properties as well as 1 building we categorize as "other commercial" that is occupied by a healthcare tenant. In total, these properties contain approximately 1.3 million square feet. Our standard practice is to announce transactions after they close, when we can talk with greater detail about the facts and circumstances. In this case, however, the size of the transaction required us to file an 8-K at the time we signed the purchase and sale agreement. The material terms of the agreement are in the 8-K filing and the agreement is still subject to standard contingencies. The buyer can terminate the purchase if the contingencies are not met to its satisfaction. As a result, we will not comment at this time beyond what's in the 8-K filing.
In addition to providing the medical office update, we also announced the sale of 22 other commercial and noncore multifamily properties during and after the quarter for an aggregate sale price of almost $99 million. Since the release 2 weeks ago, we sold another 2 noncore multifamily properties, bringing the total sales to over $105 million. Included in these transactions are 15 multifamily properties, totaling 391 apartment homes in Minot, North Dakota and Rochester, Minnesota. The sale of these smaller assets will increase our operating efficiency and overall margin, and you will see us continue to opportunistically sell multifamily properties whose location, rent, margins, age or size no longer fit our strategy to efficiently operate a high-quality, well-located portfolio of apartment homes.
With all this sales activity, we've naturally been focused on reinvesting the proceeds, and we were excited to announce, in the same press release, that we entered the Denver market by acquiring Dylan Apartments. Completed in 2016, the property has 274 apartment homes located in the River North Art District, often referred to locally as RiNo. The community is located close to Union Station in downtown, and RiNo is one of Denver's fastest-growing submarkets, featuring a vibrant art esthetic, co-working and innovative office space and popular breweries and restaurants. With average rents above $1,800 per unit, Dylan's location, margin, size and age improve, in all respects, our apartment portfolio and demonstrate one of the types of properties we are targeting as we grow and shape the IRET portfolio going forward. With the addition of Dylan, and including the previously announced acquisitions of Oxbo and Park Place in the Twin Cities market, we've invested over $244 million, adding nearly 1,000 apartment homes to our portfolio in the first 7 months of our fiscal year and front loading a portion of the redeployment required by our dispositions -- disposition activities.
The final items noted in our November 30 press release all relate to balance sheet enhancements we made recently, and John will discuss in more detail. They include refinancing our preferred equity at a lower rate, expanding the commitments to our unsecured revolving line of credit and obtaining an unsecured term loan that gives us the continued ability to actively manage our balance sheet, as we reshape the portfolio and capital structure of IRET.
Before turning the call over to John for his remarks, I want to give a quick update on a few of our markets and properties. We stated on last quarter's earnings call our intent to enter and grow in Denver, and we continue to be interested in the opportunities that market provides. Denver has shown strong growth trends since the economic crisis as many people look to escape the higher cost of living and high taxes of coastal cities while still getting the same amenities and opportunities offered by those locations. Despite a very low unemployment rate, Denver is one of the fastest-growing employment hubs in the country. Denver's recreation, infrastructure and culture combine to attract employers and high-quality talent alike. We are excited to get a toehold in Denver with the Dylan acquisition and continue to be amazed by all the improvements and amenities that Denver is delivering to the RiNo neighborhood, including a complete reconstruction of the submarket's main thoroughfare, Brighton Boulevard, as well as a recently approved bond offering to renovate and revitalize the adjacent Riverfront area. The lease-up of Dylan took place while the area was experiencing heavy construction, which has since tapered and the immediately surrounding infrastructure is much improved.
With the addition of Oxbo and Park Place as well as the final delivery of Monticello crossings earlier this year, we continue to grow IRET's presence in the Twin Cities market. Today, we own almost 2,000 units in the Minneapolis-St. Paul MSA, comprising approximately 19% of our total multifamily NOI in the second quarter, up from approximately 13% over the same time last year. Similar to Denver in many ways, except for the mountains, the Twin Cities have the diverse employer and economic base that continues to attract a highly educated pool of renters who are attracted to the area for its career opportunities, quality of life and cultural and entertainment offerings. The market vacancy rate remains very tight at only 2.5%, essentially unchanged from the prior year, which is being fueled by low unemployment and robust job creation. We are seeing the impact of these factors in our own portfolio, with 9% quarter-over-quarter rent growth in our Minneapolis same-store properties.
Turning to Rochester, our next largest market. Built around and supported by the Mayo Clinic, the city has always been a vibrant community that provides strong and stable rent growth for a market of its size. As the Mayo Clinic continues to promote its commitment to and desire to grow in this market, several developers have attempted to capitalize on the Mayo Clinic's plans and deliver roughly 1,000 units per year since 2016 with a similar amount expected over the next 12 months, which is a lot for a market of roughly 15,000 units. We believe our properties offer some of the most desirable amenities in convenient locations in the city and our same-store quarter-over-quarter revenue growth of 4.4% and physical occupancy of 95.4% at the end of the second quarter are a testament to that belief. But we are watching rent growth moderate and expect revenue to flatten as we work to hold occupancy with newer projects delivering over the next 12 to 18 months.
Finally, North Dakota's economy continues to hold steady, with an unemployment rate of roughly 2.5%. And though oil activity in the western part of the state has picked up over the last year, it is still well below peak. North Dakota now comprises less than 26% of our same-store multifamily NOI compared to over 28% 1 year ago. Given the disruption in the agriculture and energy markets, Grand Forks, Minot and Williston have had no meaningful new supply in the last year, and we expect nothing material over the coming 12 months, supporting our positive absorption and steady occupancy as of late. Bismarck added new [supply] later than the other markets and had deliveries that extended into this fiscal year, contributing to our lower occupancy there relative to the other markets in the state.
As we complete our transition to multifamily, we will continue to focus on occupancy, rents and margins as we work to improve the whole portfolio.
In closing, as we discussed on last quarter's call, we remain focused on 2 primary goals for the remainder of the fiscal year: improving our portfolio operations with a primary focus on occupancy and acquiring and disposing of assets to improve our overall portfolio composition as well as increase our multifamily NOI while reducing our commercial exposure. We strive to do what we say we're going to do, and our activities and results this quarter show that we are progressing towards those objectives.
I'll now turn the call over to John Kirchmann.