1 COSTCO DRIVE

Monroe Twp, Middlesex County · Block 78, Lot 15.7

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Assessment year 2026 · Rate year 2025 · Prior rate 2024

Assessments are tax year 2026; latest published general rate we have is 2025. Estimate uses that rate until the 2026 rate is loaded.

Estimated tax story (homeowner view)
+3.2%

Estimated tax up $48,152 ($1,485,983 → $1,534,134) using 2024→2025 rates (2.654 → 2.740) × assessed net.

Assessment net change: 0.0% ($55,990,300 → $55,990,300).

Assessment

Land$15,632,500
Improvements$40,357,800
Net (taxable assessed, 2026)$55,990,300
Town avg ratio used53.87% (Average ratio (Director’s / Chapter 123))
Implied equalized value$103,935,957
2025 tax (MOD-IV billed)$1,672,430.26
Est. 2025 tax @ general rate$1,534,134
Mailing address (2026)99 WOOD AVE SOUTH; 8TH FL, ISELIN; NJ, 08830

How the ratio works: New Jersey towns often assess below full market value. The average ratio (Director’s / Chapter 123) estimates what percent of true market value the town’s assessments represent. Implied equalized value ≈ assessed net ÷ (ratio ÷ 100). Example: assessed $187,600 at 55.89% ≈ $335,700 equalized. Tax bills still use assessed value × the general tax rate — not the equalized figure.

The stored sale is not used for a change-since-sale figure. SR1A 25 — Full consideration under $100 marks it non-usable, or the price is a nominal amount.

Building permits for 1 COSTCO DRIVE

The New Jersey construction-permit file lists 16 permits for 1 COSTCO DRIVE in Monroe Twp. 8 are still open in the state file. Permit 20260837, an alteration, was issued 27 Mar 2026 and closed 27 Mar 2026 with a Certificate of Compliance. The reported cost is $0.

Permit Type Use Issued Closed Reported cost
20143086 Alteration Factory and industrial, moderate hazard 18 Dec 2014 6 Jan 2023, Certificate of Approval $62,000
000020150315 Alteration Business Uses 12 Feb 2015 13 Sep 2022, Certificate of Approval $11,200
000020213519 Alteration Business Uses 4 Oct 2021 Open in the state file $50,000
000020214269 Alteration Business Uses 7 Dec 2021 Open in the state file $5,600
000020220276 Alteration Storage building, low hazard 1 Feb 2022 Open in the state file $51,450
000020220604 Alteration Business Uses 7 Mar 2022 7 Mar 2022, Temporary Certificate of Occupancy $400
000020221328 Alteration Business Uses 10 May 2022 Open in the state file $4,308
20222862 Alteration Business Uses 13 Sep 2022 26 Sep 2023, Certificate of Approval $2,149,707
20223993 Alteration Business Uses 30 Dec 2022 Open in the state file $8,476
20231125 Alteration Business Uses 1 May 2023 1 May 2023, Temporary Certificate of Occupancy $1
20231543 Alteration Business Uses 8 Jun 2023 Open in the state file $82,934
20240911 Alteration Business Uses 9 Apr 2024 9 Apr 2024, Certificate of Compliance $1
20250712 Alteration Business Uses 25 Mar 2025 Open in the state file $0
20252782 Alteration Business Uses 30 Sep 2025 20 Nov 2025, Certificate of Approval $14,215
20253242 Alteration Business Uses 18 Nov 2025 Open in the state file $2,621,250
20260837 Alteration Business Uses 27 Mar 2026 27 Mar 2026, Certificate of Compliance $0

The file does not name the work. This file is a full record from 2021 on. Older permits are mostly missing. A repair from before then can be absent here and still be at the Monroe Twp construction office.

Flood zone for 1 COSTCO DRIVE

FEMA’s flood map places the mapped point for 1 COSTCO DRIVE in zone X.

The state’s 10-foot ground scan puts the lowest cell on this lot at 71.5 feet and the highest at 131.3 feet (NAVD88).

These figures are estimates. The zone and any flood elevation come from FEMA’s flood map at a point for this address, and that point can fall in the street. The high and low come from the state’s 10-foot ground scan of the lot outline. A cell can catch a ditch, the street, or the edge of the lot. They are not a survey and not an insurance rating. A licensed surveyor measures the ground and the building. The town floodplain administrator, or a licensed engineer, confirms what the zone means for this lot. No zone at this point, or zone X, does not mean the lot will not flood.

Water and sewer for 1 COSTCO DRIVE

This lot is within the Middlesex County UA sewer system. Please verify with the provider.

This lot is within the Monroe Twp UD water system. Please verify with the provider.

These lines come from the state’s sewer service areas and public community water areas, read at a point for this address. That point can fall in the street. Being inside a named area means the lot is inside that mapped system, not that a pipe or a meter is on the house. Being outside means the lot is outside the mapped service area, which is usually a septic system or a private well. It is not a hookup record. Please verify with the provider. How we read water and sewer.

Year-by-year assessed value & tax

From NJ MOD-IV files (2023, 2024, 2025, 2026). Tax is the MOD-IV billed amount when present; otherwise —. Current mailing is in Assessment above.

Year Assessed net Tax
2026 $55,990,300 —
2025 $55,990,300 $1,672,430.26
2024 $55,990,300 $1,619,239.47
2023 $55,990,300 $1,563,249.18

Assessed value & ratio history

Parcel assessed nets come from MOD-IV year files (2023, 2024, 2025, 2026). Town average ratios are from Abstract / Chapter 123 when available — implied equalized = assessed ÷ (ratio ÷ 100).

Tax year Assessed net Avg ratio Implied equalized Assessed Δ Equalized Δ
2023 $55,990,300 70.07% $79,906,237 — —
2024 $55,990,300 60.95% $91,862,674 0.0% +15.0%
2025 $55,990,300 56.85% $98,487,775 0.0% +7.2%
2026 $55,990,300 53.87% $103,935,957 0.0% +5.5%

Tax year history

Assessed net is from that year’s MOD-IV file. Est. tax = assessed × that year’s general rate when we have the rate sheet. Billed tax is the MOD-IV tax field when present (often empty for the newest file year).

Tax year Assessment net General rate Est. tax (that year) Billed tax Est. vs prior
2023 $55,990,300 2.559 $1,432,792 $1,563,249.18 —
2024 $55,990,300 2.654 $1,485,983 $1,619,239.47 +3.7%
2025 $55,990,300 2.740 $1,534,134 $1,672,430.26 +3.2%
2026 $55,990,300 — — — —

Where your money goes

Component $ = net × (component rate ÷ 100). Percents are share of school + county + municipal components for rate year 2025.

Schools
$859,451 56.0%
County
$340,981 22.2%
Municipal
$333,702 21.8%

Of the estimated increase of $48,152, the school portion moved $26,875 up, the county portion $10,078 up, and the municipal portion $11,198 up. Those are pieces of the dollar change. They are not a change in each share of the rate.

District school (1.535)$859,451
County (0.556)$311,306
County open space (0.053)$29,675
Municipal purpose (0.523)$292,829
Municipal open space (0.015)$8,399
Municipal library (0.058)$32,474

Property details

Class4B — Industrial
Building class—
Building—
Land description62.53 ACRES
Dwellings—
Commercial units—
Year built—
Acreage62.53
ZoningLI — town zoning code
Tax map page76
Additional lots3 APPAREL COURT
Census tract / block—
Special tax codesF03 — Fire district 3
MOD-IV current-year tax—
Last sale$1 · 12/20/2006 · sale assessment $4,016,300 · SR1A 25 — Full consideration under $100
Deed book / page05764 / 00532

The class, building class, SR1A, and special-tax words are the state’s names for those codes. The zoning code is the town’s. A code that is not on the state list keeps the code and says so.

See this lot on the statewide map, then come back for the full tax story.

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Sources: NJ Division of Taxation MOD-IV (current parcel file) and tax rates for 2025 (Abstract of Ratables). Building permits are read live from the NJ construction-permit file for this block and lot. The flood zone is read live from FEMA’s flood map at a point for this address. The high and low are read live from the state’s 10-foot ground scan. Water and sewer are read live from the state’s service-area maps at that same point. Those map readings are estimates, not a survey and not a hookup record. Estimates are not an official tax bill. Owner names are not shown. Water and sewer · Full disclaimer.