Douglas T. Linde
President and Director at Boston Properties
Thanks, Owen. I really enjoy celebrating my birthday with all of you on the call every two [Phonetic] years, one of the highlights. So as we described during our NAREIT June meetings and the webcast that we did, the trend line of BXP's leasing activity in the second quarter of '24, picked up materially relative to what we executed in the first quarter and what we discussed on our last call, all really good stuff.
As of June 30, we've completed 2.2 million square feet of leasing for '24. When we spoke to you during our May call, we stated our pipeline of leases under negotiation at that time, May 1, was 875,000 square feet. And as Owen highlighted, we signed leases for 1.32 million square feet between April 1 and June 30, a lot more. In our active pipeline of leases under documentation today has grown to 1.39 million square feet. So, if we complete this pool of transactions, we will have at least 3.59 million square feet of space, exclusive of our leases and documentation, we have an additional set of transactions under discussion, totaling about 850,000 square feet. So, if we execute 50% of those transactions, we will more than achieve our leasing guidance of 4 million square feet for the year.
This quarter, we completed 73 transactions, 37 lease renewals for 830,000 square feet, 36 new leases encompassing 500,000 square feet. 12 clients expanded into 228,000 square feet of additional square footage, while we had four contractions, totaling 63,000 square feet. 45% of our absorption was growth from our existing client pool. As a point of comparison, last quarter we completed 61 transactions with 29 renewals, encompassing about 400,000 square feet and 32 leases for 494,000 [Phonetic] square feet. And we had only three expansions for 18,000 square feet, and we had four contractions totaling 44,000 square feet. So again, really big improvements.
Q2 activity was concentrated in our East Coast markets, with 445,000 square feet in New York, 343,000 square feet in Boston and 351,000 square feet in Northern Virginia. These three markets made up 1.14 million square feet, or 86% of the activity. Our West Coast activity was almost exclusively in San Francisco with 146,000 square feet. The majority of our client expansions came from Manhattan this quarter. The only significant contraction in the portfolio came from a tech company downsizing in Reston.
We had three transactions over 100,000 square feet, one each in Boston, New York and Reston. Expansions or new clients made up 42% of the activity in New York, 40% in Boston, 37% on the West Coast, and 16% in DC. As reported in our supplemental, the mark-to-market of leases that commenced this quarter, which is about a 375,000 square foot base was up 6%, and transaction costs averaged $11 per square foot per year.
The overall mark-to-market of the restarting [Phonetic] cash rent on leases executed this quarter, which was a 1.15 million square feet pool relative to the previous in-place cash rent was about flat. The starting rents on leases we signed during the second quarter were up about 8% in Boston, really flat in New York, down 6% in DC, and down 7% on the West Coast.
Now, I want to spend a minute on our occupancy change during the quarter, which seems to have been a focus of many of the analyst reports that we saw this morning and last night. As we stated in February and May, we have two large known expirations; one in April, 200,000 square feet at 680 Folsom, which is in the second quarter figures; and one in July, 200,000 square feet at Times Square Tower, that's a JV asset, so our percentage share is 110, but we report the 200.
This quarter we also vacated 148,000 square feet of occupied but non-revenue producing spaces. What do I mean? Well, we had some tenants in default, where we had stopped recognizing revenue, yet they were still in possession and we were in legal proceedings to vacate the space. In addition, we took back 60,000 square feet from WeWork at Dock 72, but there, the absolute rent that we were receiving remains the same, it's just on a lower square footage.
Finally, we terminated a 33,000 square foot lease in Waltham, that was simultaneously released, but won't be delivered into next quarter. Those movements account for 92% of the reduction in our occupancy in the second quarter from the first quarter.
As of June 30, we have approximately 1 million square feet of signed leases that have not commenced, hence the 200 basis points difference between occupied space and leased space. In the first quarter, our leasing included 383,000 square feet of vacant space leasing. This quarter, that same vacant space leasing was 362,000 square feet. These leases are all part of our leased square footage percentage.
Our pipeline of leases in negotiation includes an additional 635,000 square feet of currently vacant space, which if signed will contribute another 130 basis points to our leased square footage. In addition, to the known 200,000 square feet expiration of Times Square Tower in Q3, our two Waltham life science developments will be added into our in-service portfolio in the third and fourth quarters, 180 CityPoint and 103 Fourth Avenue, respectively. They are a combined 32% occupied, which will reduce our in-service occupancy. These additions will result in about a 50 basis point reduction at the year end.
For those of you that are focused on the next [Technical Issues], expect us to be lower by about 40 basis points with a recovery in the fourth quarter, where most of the leases that have been signed start to commence, where we project occupied space to be between 87% and 87.5%, inclusive of the additions to the in-service portfolio. In previous quarters, we have not been including the additions to in-service portfolio, but we're doing that now, because it's a quarter away.
Our leased space will continue to be above 89%. BXP continues to lease space. In Manhattan, almost all of our demand continues to originate from financial institutions, alternative asset managers, professional service organizations and law firms. In many circumstances, these clients are expanding.
Concessions are flat and taking market rents have risen double digits and digits in 2024. The sub-8% availability in the Park Avenue sub-market is a direct reflection of these users growing and competing for limited blocks of space. In one of our assets, we have three tenants that would like more space, and we have no immediate availability.
We had more than 130,000 square feet of expansions at the General Motors Building, and at 601 Lexington Avenue this quarter. Our strongest tour activity in New York city continues to be in the sub-market. At the same time, technology demand across the city continues to be light. We completed a single floor lease at 360 Park Avenue South with a digital media firm this quarter, but Midtown South is a tech oriented sub-market in the city, where transactions over 20,000 square feet have been very limited in 2024.
In Princeton, we completed 10 transactions totaling 150,000 square feet during the quarter, including an extension and expansion with a foreign pharma company. In the Back Bay and the Financial District of Boston, we completed 195,000 square feet of leasing this quarter. The majority of this activity was in our Back Bay portfolio and the clients were alternative asset managers and professional services firms. The Back Bay continues to outperform the financial district, which continues to have to digest the new construction pipeline.
Our remaining activity was in our Waltham urban edge portfolio, where we completed just over 110,000 square feet, and 90% of those transactions were on either existing or near term vacancy, not renewals. Here the demand came from a consumer products company, a home builder and a few pharma life science companies with office requirements.
We did execute one, 25,000 square foot life science lab lease. The life science lab demand in Greater Boston continues to be lackluster, with tenants displaying little urgency around any potential new requirements or relocations. To date this year, there have been eight non-renewal lab deals in Waltham, Lexington, Watertown and West Cambridge that didn't involve a sublet. Only one was greater than 25,000 square feet.
Our Reston portfolio was responsible, as I said, for virtually all of our executed leases this quarter in the DC region. Leasing activity and tenant demand growth is coming primarily from two industries; cybersecurity and defense contracting. We had just over 30,000 square feet expansions from existing tenants, but we also experienced, as I said, a 50,000 square foot contraction from a traditional tech company.
The vibrant residential and retail environment continues to be a natural location for small businesses in the financial services and legal industry as well, and we did do six leases at 5,000 square feet or less in the Town Center, as well as a handful of retail deals.
The District of Columbia office market is becoming more and more bifurcated. The private sector tenant demand is dominated by the legal industry in DC, but in almost every case law firm renewal or relocations are resulting in smaller requirements, which is leading to negative absorption as we have all read and seen. It doesn't look like the government leasing or usage is going to help with this problem.
However, with the either existing or near-term high vacancy, there are many buildings with overleveraged capital structures unwilling to provide capital for new transactions, and therefore, they have very little client interest. When clients do want space, they prefer to be on the top of refurbished, amenity-rich, well-capitalized buildings. There appears to be limited opportunities in the market that meet these clients demands. So our availability at 2200 Penn and 901 New York Avenue should fare well over the next few quarters.
On a comparative basis, the West Coast markets, particularly San Francisco, are seeing more demand in '24 than '23. However, additional sublet availability and technology company lease downsizings upon lease expirations continue to mute the positive demand emanating from the AI organizations that continue to look for space. Tech growth away from AI has yet to emerge.
The San Francisco CBD also continues to act as a financial center of the West Coast with its own set of asset managers, including private equity firms and venture firms, some hedge funds a few specialized fund managers and obviously, their financial and legal advisers. This is the source of the bulk of the transactional activity in the market. And while the brokers correctly report a pickup and tenants in the market, if you look more closely, very little of that demand represents net growth from those tenants.
Our San Francisco activity continues to center on traditional non-tech demands at Embarcadero Center. This quarter, we completed an 80,000 square foot law firm renewal with no change in square footage and five smaller deals, all 12,000 square feet or less with new tenants on currently vacant space. We continue to see many of the professional services in law firm continuing to downsize, which is in stark contrast to the activities of those same tenants in New York and Boston.
We are seeing a steady flow of potential tenants 12,000 square feet or less, which is about a full floor at our 535 Mission property. But this is in contrast to 680 Folsom whose location is less desirable for non-tech demand and where the potential tech clients continue to have inexpensive furnished sublet options.
Tenant activity is improving in our Mountain View Research R&D buildings, where we have about 215,000 square feet of availability and uniquely attractive products. These buildings are designed for companies that are making some sort of device, be it a car sensor, a photovoltaic panel or a medical device. They don't compete with the large multi-story office product that has flooded the market.
We saw activity come to a halt, when the SVB imploded last year. The entrepreneurial device maker companies still exist, and they are now slowly making capital commitments once again and looking at leasing space. The lab market story in South San Francisco is not dissimilar to Greater Boston. There were only a handful of new leases completed during the first six months of the year that didn't involve a renewal or sub-lease, though there have been about 100,000 square feet of new deals completed in the last 30 days.
Overall, we are experiencing an improving operating environment. Leasing available space is primarily driven by gaining market share from competitive landlords and/or lower quality building, but not net new market demand growth. While the markets need consistent incremental absorption to show a macro recovery, we have started to see pockets of strength where low availability is driving constructive client behavior, the Back Bay of Boston and the Park Avenue sub-market of New York are the obvious examples.
As clients choose premier properties in sound financial condition operated by the best property management teams, we will continue to be successful in capturing demand, leasing space and increasing our occupancy.
And with that, I'll turn it over to Mike.