420 East 51st Street
1960s co-op apartment building in Midtown East, Manhattan. See New York City.
At a glance
| Source | Author | Role | In one line |
|---|---|---|---|
| The Manhattan Apartment Building That Went All-In on All-Electric | Marlowe Starling | subject | A 110-unit co-op that swapped gas steam for rooftop heat pumps. |
The Manhattan Apartment Building That Went All-In on All-Electric — Marlowe Starling (2025)
Source: Original · Readwise highlight
As one of the first co-ops in Manhattan to fully electrify its heating and cooling systems with heat pumps, it serves as a model for cities looking to make older housing stock more sustainable.
- Role: subject
- In the article: The 13-storey, white-brick co-op replaced its gas-fired steam heating and cooling with ten rooftop heat pumps, craned into place. The
3.8 million project was partly paid for by state and utility grants; the building met the city's Local Law 97 emissions target early and cut summer energy bills from about20,000 to about $12,000 a month. - Why it matters: The building is the article’s case study for electrifying older city housing.