John Chamberlain
Analyst · Mitch Germain
Good morning, and thank you, Ernest. Overall conditions in our core markets, Seattle, Portland, San Francisco, San Diego and Oahu, continue to show significant signs of strengthening in all 3 of our asset classes. We expect this to continue into the foreseeable future.
Our office properties continue to perform extremely well relative to their respective submarket competitors. Portfolio-wide, the overall leased building area was 95% as of March 31. Our San Francisco portfolio is 100% leased, and the market, whilst slowing somewhat, continues to experience positive rent growth. In San Diego, construction continues on Phase III of Torrey Reserve, a 3-building, approximate 40,000-square-foot expansion. Phase IV, an additional approximate 40,000, 2-building expansion, is on schedule to commence in July 2013. In Bellevue, Washington, we renewed an approximate 29,000-square-foot lease with Cisco Systems at $36.75 per square foot, an approximate 24% increase over their previous rental rate.
The leased building area of our retail portfolio decreased to 96.1% from 97% last quarter. The decrease was due to Ross leaving Lomas Santa Fe Plaza, which was anticipated. We believe this space will be re-leased by the end of Q3. Other leasing and repositioning activities continue in full swing, with several significant executed letters of intent in place. Our Monterey, California property, the Del Monte Shopping Center, continues to operate very well, finishing the first quarter at 99.2% leased.
Our multifamily assets saw significant improvement in leasing levels at the end of Q1 as compared to Q1 2012. Our portfolio was 94.3% leased, up 5.9% over the prior year. This was accomplished with little to no rental concessions. We feel we are poised for a strong year in our multifamily portfolio.
The Hawaii economy continues to show positive growth in both spending and arrivals at the end of Q1. Total visitor arrivals in February grew to approximately 675,517, a 7.8% increase year-over-year. The following percentages are all year-over-year for the month of February. Expenditures by visitors increased 9.9% to $1.22 billion. Arrivals by air increased 10% to 844,874. Notably, arrivals from China nearly tripled in growth to 14,188. Japan grew 3.5%. U.S. West rose 7.7% and U.S. East grew 3.7%, with new daily service from New York and Washington, D.C.
Waikiki Beach Walk was 95.5% leased at the end of March. Retail full service and quick service restaurants at Beach Walk continue to show strong upward sales trends. Our shops on Kalakaua remain 100% leased and occupied. Our Hawaiian retail portfolio was 95% leased at the end of the quarter.
Our Embassy Suites at Beach Walk continues to exceed our competition in ADR and RevPAR measurements for the quarter. For the month of December, the property's ADR and RevPAR index -- excuse me, for the month of March, the property's ADR and RevPAR index were 126.2 and 124.3, respectively. Year-to-date, room revenue exceeds last year by $1,184,000 or 15%. The outlook for the first half of 2013 remains consistent with our expectations, pacing ahead of 2012.
Now a brief update on our development activities in Portland, Oregon. Our firming efforts are well underway. Our development program has been defined to include approximately 47,000 square feet of retail and commercial area and 657 multifamily units, in addition to the existing 238,000-square-foot office tower. The project will also include approximately 1,218 stalls of underground parking. We currently anticipate securing the necessary permits and commencing construction July 1. Construction is expected to take 24 months.
The project will be LEED-certified and contains state-of-the-art green features, including a living machine that is projected to reduce water and sewer costs by as much as 75%. The retail will be anchored by a specialty grocer and provide services and amenities for the apartment residents, office tenants and neighborhood alike.
The project will be a mix of all market rates: studios, 1-, 2- and 3-bedroom apartments, ranging from walk-up flats to penthouse units. Total project costs, including hard and soft costs, are currently estimated at $192 million. The stabilized cash-on-cash return is anticipated to initially commence between approximately 6.25% and 7.25% and is anticipated to grow steadily.
Currently, the apartment vacancy for the Lloyd District submarket is approximately 3%, the best in the Portland metropolitan statistical area. Regarding Sorrento Pointe and Solana Beach 101, our entitlement efforts continue. Sorrento Pointe is scheduled for a final approval from the California Coastal Commission on May 8. Assuming we are approved, we are poised to immediately begin the preparation and processing of construction documents. Groundbreaking would be targeted for Q2 2014. Solana Beach is currently tracking for a 2014 to 2015 approval. As you know, each of these potential development and redevelopment opportunities are subject to market conditions and may not ultimately come to fruition. We will certainly keep you updated.
Our acquisition efforts remain in full swing. However, we continue to be very disciplined. All opportunities are of high quality, located in our existing core markets and include, primarily, retail and multifamily assets. And currently, we continue to evaluate opportunities to recycle capital where the probability to increase internal growth exists.
I would now like to turn the presentation over to our Chief Financial Officer, Bob Barton. Bob?