One of Manhattan's latest luxury apartment buildings has an amenity that cost-conscious residents will love

Manhattan now has its first rental apartment building that meets passive standards, meaning it requires little energy to achieve comfortable temperatures year-round.

The luxury building, dubbed Perch Harlem, consumes 80% less energy than one of similar size, said Justin Palmer, CEO of Synapse Development Group. That means residents will save money on air-conditioning and heating costs.

But that doesn't mean it's cheap to live there. Monthly rents range from $2,500 to $5,500 for one-and-two-bedroom apartments respectively.

Take a look inside Perch Harlem, which opened in October.