Earlier this year, the boutique Line Hotel opened up shop right above the Purple Line's Wilshire/Normandie Station.  Hopefully its windows are triple paned, because there could be construction activity on the horizon.  According to a document from the Wilshire Center Koreatown Neighborhood Council, a new residential development is planned for the land directly west of the hotel.  Rising seven stories at the intersection of Wilshire Boulevard and Ardmore Avenue, the new apartment building would consist of 268 units above a ground level garage.  The document does not provide renderings, nor does it specify whether or not the development would feature ground level retail space.  However, a case filing with LADCP links the project to Christopher Pak, a principal at the Archeon Group (Solair Wilshire, 535 Kinsley).  The property itself is listed amongst the portfolio of Jamison Services Incorporated, one of Los Angeles' largest private office landlords.  Faced with a decreased demand for traditional office space since the recession, the Koreatown-based company has recently shifted its focus towards residential development.  645 S. Ardmore joins several other apartment projects planned between Normandie and Western Avenues, including the much downsized revival of 3670 Wilshire and a 209-unit building at the intersection of Wilshire and Harvard Boulevards.