Offlot TV and commercials filming in Los Angeles has heated up in mid-December, with this past week the most active of the fourth quarter.

For the second consecutive week, total permitted production hit the highest level of the quarter with 827 days — up 72 days from the previous week. The past three weeks have been the only weeks of the fourth quarter to top 700 days.

The weekly average during the third quarter was around 620 days. Overall activity rose 15% during that quarter.

Last week was also up 4% from the same week in 2010, when activity totaled 796 days, according to figures provided Tuesday by the FilmL.A. permitting agency.

Feature activity was the one area of decline at 135 days — down 13 days from the previous frame and 66 days from the robust year-ago period. Feature film activity is generally about half of the levels of the mid-1990s, when tracking of offlot shoots first began.

“Isabella” was the most active feature with 16 permitted days. Other films shooting in Los Angeles include “Maniac,” “Oblivion,” “One Eighty,” “Seven Psychopaths” and “Spreading Darkness.”

TV shooting jumped 14% to 432 days compared with the year-ago period, with “Raising Hope” as the most active single production at seven days. Other TV productions currently shooting in L.A. include “Awake,” “Bones,” “The Closer,” “Celebrity Couples,” “Gene Simmons Family Jewels,” “Khloe and Lamar 2” and “Real Life.”

Commercial shooting blossomed 35 days to 260 days with a Block spot racking up the most days at 24. “Commercial numbers were strong, likely due to holiday advertising,” said FilmL.A.’s Todd Lindgren.

He added that Super Bowl commercials typically begin pulling permits this time of year — such as “NFL Timeline,” which was shooting this week.