DeltaVisor
Live across 2 cities in Massachusetts

Changes in the built world of Massachusetts, as they happen

A live map of every Massachusetts place we watch. Building permits, new construction, and property sales on the way up. Code violations, tax delinquency, and foreclosure on the way down.

8,355Record changes · 30 days
909In the last 7 days
2Cities tracked
Map of the 2 Massachusetts cities DeltaVisor tracks Boston · 7,098 Worcester · 1,257
Activity and distress
On the way up · last 30 days
3,617Permits
46Land use
36Inspections
On the way down · last 30 days
4,600Violations
37Vacancy
19Demolition
Changes by record type
  • Violations 4,600
    Opened 3,884Resolved 716
  • Permits 3,617
    Issued 3,243Finaled 276C/O issued 98
  • Land use 46
    Filed 46
  • Vacancy & Blight 37
    Vacancy cleared 22Vacated 14Condemned 1
  • Inspections 36
    Passed 36
  • Demolition 19
    Issued 19
Daily changes, last 30 days
Jun 30Jul 7Jul 14Jul 21Jul 28Jul 29
Top permit types
  • Electrical971
  • Alteration727
  • Other529
  • Plumbing508
  • Mechanical306
  • Fire143
  • Roof123
  • Solar98
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