189 CENTER ST

Roxbury Twp, Morris County · Block 10503, Lot 50

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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)
+1,303.1%

Estimated tax up $38,508 ($2,955 → $41,463) using 2024→2025 rates (2.749 → 2.821) × assessed net.

Assessment net change: +1,267.3% ($107,500 → $1,469,800).

Assessment

Land$107,500
Improvements$1,362,300
Net (taxable assessed, 2026)$1,469,800
Town avg ratio used64.45% (Average ratio (Director’s / Chapter 123))
Implied equalized value$2,280,528
2025 tax (MOD-IV billed)$41,463.06
Est. 2025 tax @ general rate$41,463
Mailing address (2026)9 CONCORD WAY, MORRIS PLAINS; NJ, 07950

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.

Change since the 2023 sale of $160,000: implied equalized value $2,280,528 is $2,120,528 above that sale. This is not an appraisal.

This class 2 — residential (four families or less) — net assessment sits above the town class-2 average of $348,769.

Building permits for 189 CENTER ST

The New Jersey construction-permit file lists 10 permits for 189 CENTER ST in Roxbury Twp. 1 is still open in the state file. Permit 24-0660, a new building, was issued 25 Jun 2024 and closed 3 Dec 2025 with a Temporary Certificate of Occupancy. The reported cost is $555,150. The reported size is 6,756 square feet.

Permit Type Use Issued Closed Reported cost
24-0660 New International Residential Code 25 Jun 2024 3 Dec 2025, Temporary Certificate of Occupancy $555,150
24-0660+C Alteration International Residential Code 14 Aug 2024 6 Aug 2025, Certificate of Approval $17,000
24-0660+B Alteration International Residential Code 14 Aug 2024 1 Aug 2025, Certificate of Approval $35,000
25-0160 Alteration International Residential Code 10 Feb 2025 6 Aug 2025, Certificate of Approval $13,500
24-0660+E Alteration International Residential Code 24 Jul 2025 6 Aug 2025, Certificate of Approval $22,200
25-0940 Alteration International Residential Code 24 Jul 2025 6 Aug 2025, Certificate of Approval $1,000
24-0660+D Alteration International Residential Code 24 Jul 2025 28 Jul 2025, Certificate of Approval $4,000
24-0660+G Alteration International Residential Code 29 Aug 2025 10 Sep 2025, Certificate of Approval $1,000
24-0660+F Alteration International Residential Code 29 Aug 2025 10 Sep 2025, Certificate of Approval $14,000
26-0284 Alteration International Residential Code 18 Mar 2026 Open in the state file $300

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 Roxbury Twp construction office.

Flood zone for 189 CENTER ST

FEMA’s flood map places the mapped point for 189 CENTER ST in zone X.

The state’s 10-foot ground scan puts the lowest cell on this lot at 892.9 feet and the highest at 908.5 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 189 CENTER ST

This lot is most likely on septic because it is outside the mapped sewer service area. Please verify.

This lot is most likely on a well because it is outside the mapped public water service area. Please verify.

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 $1,469,800 —
2025 $107,500 $41,463.06
2024 $107,500 $2,955.18
2023 $107,500 $2,908.95

Mailing changed in 2024 to 9 CONCORD WAY, MORRIS PLAINS; NJ, 07950.

Mailing changed in 2025 to 2740 RT 10 W STE 103, MORRIS PLAINS; NJ, 07950.

Mailing changed in 2026 to 9 CONCORD WAY, MORRIS PLAINS; NJ, 07950.

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 $107,500 82.18% $130,810 — —
2024 $107,500 77.90% $137,997 0.0% +5.5%
2025 $107,500 71.32% $150,729 0.0% +9.2%
2026 $1,469,800 64.45% $2,280,528 +1,267.3% +1,413.0%

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 $107,500 2.706 $2,909 $2,908.95 —
2024 $107,500 2.749 $2,955 $2,955.18 +1.6%
2025 $107,500 2.821 $3,033 $41,463.06 +2.6%
2026 $1,469,800 — — — —

Where your money goes

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

Schools
$26,339 63.5%
County
$4,939 11.9%
Municipal
$10,186 24.6%

Of the estimated increase of $38,508, the school portion moved $24,467 up, the county portion $4,596 up, and the municipal portion $9,445 up. Those are pieces of the dollar change. They are not a change in each share of the rate.

District school (1.792)$26,339
County (0.327)$4,806
County open space (0.009)$132
Municipal purpose (0.635)$9,333
Municipal open space (0.013)$191
Municipal library (0.045)$661

Property details

Class2 — Residential (four families or less)
Building class—
Building1SF-R-OB
Land description1.7 AC
Dwellings—
Commercial units—
Year built2025
Acreage1.7
ZoningR-2 — town zoning code
Tax map pageD2NW
Additional lots—
Census tract / block—
Special tax codes—
MOD-IV current-year tax—
Last sale$160,000 · 9/7/2023 · sale assessment $107,500
Deed book / page24657 / 00242

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.