Numbers to know: Superior Ink’s sale prices skyrocket, Steinway Hall’s interior is landmarked … and more

“Numbers to know” is a weekly web feature that catalogues the most notable, quirky and surprising real estate statistics. Transactions at Superior Ink increase by nearly $1,000 a square foot compared to last year, Steinway Hall’s lobby is one of fewer than 200 interior buildings to be designated a landmark, and the city makes a big investment in Bedford-Stuyvesant.

$20 million

Contribution the City of New York made to restore Bedford-Stuyvesant’s historic district, which celebrated the restoration this past week [Bedford Stuyvesant Restoration Corporation]

$12.95 million

Asking price of the most expensive contract signed in Manhattan last week — a three-bedroom, 2,526-square-foot apartment at 15 Central Park West [Olshan Luxury Market Report]

$2.125 million

Listing price of a six-bedroom Charlotte, N.C., mansion used in the upcoming third season of the television show “Homeland” [Zillow]

30,000

Communication towers that New Jersey-based Crown Castle, which intends to convert to a real estate investment trust by Jan. 1, 2014, owns [Crown Castle]

$6,565

Average monthly rent of a three-bedroom apartment in Manhattan in August, a 3.1 percent increase compared to July [Coldwell Banker AC Lawrence]

$3,998

Average price per square foot of all sales at Superior Ink at 400 West 12th Street this month, an increase of nearly $1,000 from its transactions in December 2012, which totaled $2,956 [CityRealty]

1925

Year Steinway Hall was built — its interior is the 116th to be designated a landmark by the Landmarks Preservation Commission [LPC]

8.5

Percentage of all mortgages in the New York City metro area that have negative equity [CoreLogic]

5

Percentage increase in the average sale price per square foot of Manhattan properties in the 90 days ending Aug. 1 compared to the 90 days prior [CityRealty]

0.7

Percentage drop in mortgage credit availability in August, to 111.5 following four consecutive months of increases, indicating banks’ lending standards are once again tightening [Mortgage Bankers Association]