Development reports · Mercer County, NJ
What's being built in Mercer County, NJ: Q3 2025
12 development projects in Mercer County, NJ had a new filing in Q3 2025 (July to September), up from 3 in Q2 and 9 in Q3 2024. Together they propose 490,021 sq ft of non-residential space, roughly $92.1M in estimated construction value. The busiest towns were Hamilton Township (3), Ewing Township (3) and Hopewell Township (3). The most common project type was apartments, followed by warehouse & storage.
12projects filed
0new homes proposed
490,021sq ft non-residential
$92.1Mest. construction value
Biggest projects
Filed 2025-07-17
$22.2M est. value
170,800 sq ft|Warehouse & storage
600 Horizon Drive
Hamilton Township, Mercer County, NJ
Filed 2025-07-01
$16.7M est. value
83,337 sq ft|Office
999 Lower Ferry Rd
Ewing Township, Mercer County, NJ
Filed 2025-07-09
$24.3M est. value
80,923 sq ft|Office
701 Mt Lucas Road
Princeton (New) Borough, Mercer County, NJ
Filed 2025-09-30
$5.4M est. value
41,236 sq ft|Warehouse & storage
1514 Kuser Rd
Hamilton Township, Mercer County, NJ
Filed 2025-09-08
$5.2M est. value
40,120 sq ft|Warehouse & storage
Storage building, Hamilton Township
Hamilton Township, Mercer County, NJ
Filed 2025-09-05
$11.0M est. value
36,676 sq ft|Office
Business building, Ewing Township
Ewing Township, Mercer County, NJ
By type
| Type | Projects | Homes | Sq ft |
|---|---|---|---|
| Apartments | 4 | 0 | 0 |
| Warehouse & storage | 3 | 0 | 252,156 |
| Office | 3 | 0 | 200,936 |
| Other | 2 | 0 | 36,929 |
By town
| Town | Projects | Homes |
|---|---|---|
| Ewing Township | 3 | 0 |
| Hamilton Township | 3 | 0 |
| Hopewell Township | 3 | 0 |
| Princeton (New) Borough | 2 | 0 |
| West Windsor Township | 1 | 0 |
Every project filed in Q3 2025
| Received | Project | Town | Type | Homes | Sq ft |
|---|---|---|---|---|---|
| 2025-09-30 | 1514 Kuser Rd | Hamilton Township | Warehouse & storage | 41,236 | |
| 2025-09-11 | 100-12302 Lofts Drive apartments | West Windsor Township | Apartments | ||
| 2025-09-08 | Multifamily dwellings, Princeton Borough | Princeton (New) Borough | Apartments | ||
| 2025-09-08 | Storage building, Hamilton Township | Hamilton Township | Warehouse & storage | 40,120 | |
| 2025-09-05 | Business building, Ewing Township | Ewing Township | Office | 36,676 | |
| 2025-09-04 | William Allen Court multifamily buildings | Hopewell Township | Apartments | ||
| 2025-08-26 | 46 Harb Woodsville Rd accessory buildings | Hopewell Township | Other | 10,395 | |
| 2025-07-17 | 600 Horizon Drive | Hamilton Township | Warehouse & storage | 170,800 | |
| 2025-07-17 | 2200 Scenic Dr | Ewing Township | Apartments | ||
| 2025-07-11 | Block 31, Lot 13.03 accessory structures | Hopewell Township | Other | 26,534 | |
| 2025-07-09 | 701 Mt Lucas Road | Princeton (New) Borough | Office | 80,923 | |
| 2025-07-01 | 999 Lower Ferry Rd | Ewing Township | Office | 83,337 |
← Q1 2025 · All Mercer 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 Mercer County page for every project since 2024.