Building Departments in Delaware

There are 11 Building Departments in Delaware, serving a population of 943,732 people in an area of 1,949 square miles. There is 1 Building Department per 85,793 people, and 1 Building Department per 177 square miles.

The state of Delaware is ranked 42nd in Building Departments per capita, and 9th in Building Departments per square mile.

List of DE Building Departments

Find Delaware building departments, planning, permits, zoning, and inspections.


Delaware Planning Department 417 Federal Street Dover, DE

Delaware State Planning Department 350 Virginia Avenue Seaford, DE

Dover Planning Department 805 River Road Dover, DE

Family Planning Department 253 Northeast Front Street Milford, DE

Kent County Permits and Zoning 555 South Bay Road Dover, DE

Kent County Planning Department 555 South Bay Road Dover, DE

Middletown Permits 19 West Green Street Middletown, DE

New Castle Permits 900 Wilmington Road New Castle, DE

Newark City Building Department 220 South Main Street Newark, DE

Newark Planning Department 220 South Main Street Newark, DE

Sussex County Planning and Zoning Department 40 the Cir Georgetown, DE

Delaware Building Structure & Housing Statistics

Find Delaware Residential Housing Units, Occupied Residential Buildings, Occupied Residential Buildings Construction Year, Occupied Residential Buildings Room Characteristics, Occupied Residential Buildings Bedroom Characteristics, and Occupied Residential Building Facility Characteristics. Data Source: U.S. Census Bureau; American Community Survey, 2017 ACS 5-Year Estimates.

Delaware Residential Housing Units
 DelawareUnited States
Total Housing Units423,489135,393,564
Occupied Housing Units352,357 (83.2%)118,825,921 (87.8%)
Delaware Occupied Residential Buildings
 DelawareUnited States
Single-Family Detached Homes217,149 (61.6%)74,725,744 (62.9%)
Single-Family Attached Homes51,005 (14.5%)7,108,474 (6.0%)
2 Apartments5,191 (1.5%)4,163,223 (3.5%)
3 or 4 Apartments7,252 (2.1%)5,096,643 (4.3%)
5 to 9 Apartments12,207 (3.5%)5,539,054 (4.7%)
10 or More Apartments34,067 (9.7%)15,360,749 (12.9%)
Mobile Home or Other Type of Housing25,486 (7.2%)6,832,034 (5.7%)
Delaware Occupied Residential Buildings Construction Year
 DelawareUnited States
2014 or Later4,633 (1.3%)1,027,503 (0.9%)
2010 to 201313,179 (3.7%)2,888,604 (2.4%)
2000 to 200965,520 (18.6%)17,290,715 (14.6%)
1980 to 1999105,681 (30.0%)32,923,618 (27.7%)
1960 to 197980,479 (22.8%)31,190,223 (26.2%)
1940 to 195954,113 (15.4%)18,692,139 (15.7%)
1939 or Earlier28,752 (8.2%)14,813,119 (12.5%)
Delaware Occupied Residential Buildings Room Characteristics
 DelawareUnited States
1 Room3,100 (0.9%)2,205,033 (1.9%)
2 or 3 Rooms21,957 (6.2%)12,973,069 (10.9%)
4 or 5 Rooms95,239 (27.0%)41,694,651 (35.1%)
6 or 7 Rooms124,093 (35.2%)36,818,298 (31.0%)
8 or More Rooms107,968 (30.6%)25,134,870 (21.2%)
Delaware Occupied Residential Buildings Bedroom Characteristics
 DelawareUnited States
No Bedroom3,559 (1.0%)2,479,583 (2.1%)
1 Bedroom24,129 (6.8%)12,375,686 (10.4%)
2 or 3 Bedrooms226,911 (64.4%)77,772,411 (65.5%)
4 or More Bedrooms97,758 (27.7%)26,198,241 (22.0%)
Delaware Occupied Residential Building Facility Characteristics
 DelawareUnited States
With Complete Plumbing Facilities351,449 (99.7%)118,355,147 (99.6%)
With Complete Kitchen Facilities350,614 (99.5%)117,845,683 (99.2%)