NYC ROWHOUSE RETROFIT INVENTORY
The data behind our NYC High-Performance Rowhouse Inventory is available to researchers, journalists, policymakers and others interested in understanding the adoption of high-performance retrofits across the city.
Request the dataset
What you would be getting
Worth knowing before you ask. The inventory is a floor, not a census; it records what sources disclose, and it is uneven, in ways that may matter if you intend to analyze it.
Coverage is thickest where firms publish their work and thinnest where they do not. Absence from the dataset is not evidence that nothing was built.
Most rows record a project built to Passive House standards but not independently verified. Every row carries its verification status; keep it attached to the record.
Only some projects carry a completion year, and those that do are weighted towards the firms that sent us their own dated lists. A time series drawn from this reflects who answered an email as much as what was built.
Some projects have a street address and some have only a neighborhood, depending on what the source published and what the contributor agreed to.
Measured performance data is sparse to absent. Treat the certification fields as claims about design intent, not as evidence of how a building performs.
Ask for it
We reply within a week with the file and a short use agreement. If your request touches projects whose contributors asked to be consulted first, it takes longer and we will say so.