Development reports · Union County, NJ
What's being built in Union County, NJ: Q4 2025
11 development projects in Union County, NJ had a new filing in Q4 2025 (October to December), up from 10 in Q3 and 7 in Q4 2024. Together they propose 1 new home and 333,268 sq ft of non-residential space, roughly $82.1M in estimated construction value. The busiest towns were Linden City (2), Westfield Town (2) and Rahway City (2). The most common project type was single-family homes, followed by apartments.
11projects filed
1new homes proposed
333,268sq ft non-residential
$82.1Mest. construction value
Biggest projects
Filed 2025-12-19
$32.8M est. value
164,200 sq ft|Office
600 W Edgar Rd - business building
Linden City, Union County, NJ
Filed 2025-12-16
$25.8M est. value
73,688 sq ft|School
42 Norwood Avenue educational building
Summit City, Union County, NJ
Filed 2025-11-14
$9.9M est. value
49,650 sq ft|Recreation
E 3rd Ave
Roselle Borough, Union County, NJ
Filed 2025-10-31
$6.2M est. value
17,630 sq ft|Institutional
1435 Liberty Ave, Hillside
Hillside Township, Union County, NJ
Filed 2025-10-14
$5.1M est. value
14,684 sq ft|Institutional
343 Snyder Ave
Berkeley Heights Township, Union County, NJ
Filed 2025-12-05
$905K est. value
6,962 sq ft|Warehouse & storage
1100 E Broad St
Westfield Town, Union County, NJ
By type
| Type | Projects | Homes | Sq ft |
|---|---|---|---|
| Single-family homes | 2 | 1 | 0 |
| Apartments | 2 | 0 | 0 |
| Institutional | 2 | 0 | 32,314 |
| Office | 1 | 0 | 164,200 |
| School | 1 | 0 | 73,688 |
| Warehouse & storage | 1 | 0 | 6,962 |
| Other | 1 | 0 | 6,454 |
| Recreation | 1 | 0 | 49,650 |
By town
| Town | Projects | Homes |
|---|---|---|
| Linden City | 2 | 0 |
| Rahway City | 2 | 0 |
| Westfield Town | 2 | 1 |
| Berkeley Heights Township | 1 | 0 |
| Hillside Township | 1 | 0 |
| Plainfield City | 1 | 0 |
| Roselle Borough | 1 | 0 |
| Summit City | 1 | 0 |
Every project filed in Q4 2025
| Received | Project | Town | Type | Homes | Sq ft |
|---|---|---|---|---|---|
| 2025-12-19 | 600 W Edgar Rd - business building | Linden City | Office | 164,200 | |
| 2025-12-16 | 42 Norwood Avenue educational building | Summit City | School | 73,688 | |
| 2025-12-05 | 1100 E Broad St | Westfield Town | Warehouse & storage | 6,962 | |
| 2025-12-02 | 705 Lenape Trail single-family home | Westfield Town | Single-family homes | 1 | |
| 2025-12-01 | 327 W St George Ave | Linden City | Apartments | ||
| 2025-11-19 | Block 299, Lots 1.01 and 1.02 | Rahway City | Single-family homes | ||
| 2025-11-19 | 1332-1474 North Ave | Plainfield City | Other | 6,454 | |
| 2025-11-14 | E 3rd Ave | Roselle Borough | Recreation | 49,650 | |
| 2025-10-31 | 1435 Liberty Ave, Hillside | Hillside Township | Institutional | 17,630 | |
| 2025-10-14 | 343 Snyder Ave | Berkeley Heights Township | Institutional | 14,684 | |
| 2025-10-06 | 1677 Bridge St | Rahway City | Apartments |
← Q3 2025 · All Union County reports · Q1 2026 →
Counted by each project's latest filing date. Figures are the totals filed with the county and state, and construction values are rough estimates. See the Union County page for every project since 2024.