Q. What is it supposed to be on the show?

A. This is the residential home of Blessing Kamara, a friendly, good-spirited rideshare driver who befriends Dexter after he arrives in New York.

It becomes the New York home of Dexter himself, when he winds up renting a basement apartment in Blessing's house.
 

 
Q. Where is it supposed to be on the show?

A.  According to Dexter's driver's license, the address is supposed to be 77-01 Forest Ave, Queens, NY.

But of course, that address is fake.

It is nowhere near Queens (and I wasted my time searching in that borough) 

Q. When did we see it on the show?

A. We first see this home in Episode 2 of Season One of Resurrection, but the house is seen in virtually every episode, because not only is it Blessing's home, but it is also where Dexter winds up living in a basement apartment while he's in New York.

Dexter first meets Blessing when his car is towed, and he has to call a rideshare car to get to the police impound lot to retrieve his vehicle. Blessing turns out to be his URcar driver. 

It's during the ride there that Dexter learns from Blessing that there is a serial killer terrorizing New York called the “Dark Passenger”. Dexter resents the fact that the killer has stolen his name, and when Blessing later tells him that one of his friends, another rideshare driver, had narrowly escaped being killed by the serial killer, and got a glimpse of him, Dexter suddenly becomes interested in taking a job as a rideshare driver himself, in hopes of hunting down this “Dark Passenger”.


So he goes to a party that Blessing is having at his house, in order to talk with Blessing's witness/friend, and when Blessing finds out that Dexter is staying at a motel, he tells him that he has a room to rent downstairs, because his daughter moved out. Since Blessing and Dexter seem to be getting along well, and Blessing is giving him good advice on being a rideshare driver, Dexter decides to take him up on the offer and moves in.

The house is then the scene of multiple scenes throughout the first season, including the funeral of Blessing's mother, an angry moment in which Blessing uncharacteristically explodes (after Dexter accidentally reveals a secret he had shared with him), Dexter killing the Gemini Killer in his downstairs apartment, Dexter getting acupuncture treatments for his painful shoulder, and a tense moment between Dexter and Angel Batista. 

Dexter's basement apartment

A. Don't bother looking in Queens.

The house is actually located at 33 Hyatt Ave, in Yonkers, New York.

The house is on the west side of the Hyatt Ave , midway between McLean Ave on the south and Scott Ave on the north.

According to real estate sites, it is “a 5 bed, 3 bath, 2272 Sq. Ft. multi-family home built in 1907 that was last sold In 1994.”

 
I'm reasonably sure that only the exterior of the house was used in filming.

At first, I thought the interior might be genuine, but then I noticed that the living room seen on the show had small arched windows, and StreetView reveals no such windows on the actual house. And the few photos of the actual house interior that I have found on real estate sites don't seem to match at all. So the odds are that the interior scenes of Blessing's house are filmed on a set at the studio (which is also in Yonkers).


Yonkers is a separate city from NYC, 20 miles north of Manhattan.

But Yonkers is where the studio is located where Dexter: Resurrection is filmed, so  they have filmed a number of different scenes in that city, if only because they are nearby. These locations include the teenager finding the dead body of the Dark Passenger's rideshare victim, the NYPD impound lot, the police station where Detective Wallace & Oliva work, the street corner where Harrison imagines seeing a dead Ryan, the alley where Dexter abducts Vinny, the spot where Dexter releases Charley after kidnapping her, and even the Miami crime scene where Quinn talks to Wallace. 

   
Here is a matching StreetView of Blessing's house:


 
Here is an aerial photo of the location.  And here is a map link.


*** WARNING: This is a private home. Do not trespass on their property, knock on their door,
or do anything else that might disturb the residents. ***