800 SYLVAN AVE

Englewood Cliffs Boro, Bergen County · Block 910, Lot 1

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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)
+0.9%

Estimated tax up $4,100 ($473,550 → $477,650) using 2024→2025 rates (1.155 → 1.165) × assessed net.

Assessment net change: 0.0% ($41,000,000 → $41,000,000).

Assessment

Land$40,900,000
Improvements$100,000
Net (taxable assessed, 2026)$41,000,000
Town avg ratio used80.70% (Average ratio (Director’s / Chapter 123))
Implied equalized value$50,805,452
2025 tax (MOD-IV billed)$477,650.00
Est. 2025 tax @ general rate$477,650
Mailing address (2026)820 MORRIS TPKE STE 301, SHORT HILLS;NJ, 07078

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 2021 sale of $36,500,000: implied equalized value $50,805,452 is $14,305,452 above that sale. This is not an appraisal.

Building permits for 800 SYLVAN AVE

The New Jersey construction-permit file lists 50 permits for 800 SYLVAN AVE in Englewood Cliffs Boro. 13 are still open in the state file. Permit 24-320, a new building, was issued 15 Oct 2024 and closed 20 Nov 2025 with a Certificate of Occupancy. The reported cost is $158,200. The reported size is 3,485 square feet.

Permit Type Use Issued Closed Reported cost
02-307 Alteration Accessory buildings and miscellaneous structures 3 Oct 2002 Open in the state file $500
02-308 Alteration Accessory buildings and miscellaneous structures 3 Oct 2002 Open in the state file $25,000
21-177+B Alteration Business Uses 23 Aug 2021 Open in the state file $0
21-177 Alteration Business Uses 23 Aug 2021 Open in the state file $1,365,000
21-177+A Alteration Business Uses 23 Aug 2021 Open in the state file $0
21-076+A Alteration Business Uses 13 May 2022 Open in the state file $0
22-134 Alteration Business Uses 17 May 2022 Open in the state file $100
22-134+A Alteration Business Uses 11 Jul 2022 Open in the state file $500
21-177+B Alteration Business Uses 19 Aug 2022 Open in the state file $0
22-319 Alteration Business Uses 14 Nov 2022 19 Dec 2024, Certificate of Approval $10,000
24-043+A Alteration International Residential Code 21 Feb 2024 2 Jun 2025, Certificate of Approval $0
24-043 Alteration International Residential Code 21 Feb 2024 3 Jun 2025, Certificate of Approval $3,206,600
24-043+B Alteration Business Uses 22 May 2024 2 Jun 2025, Certificate of Approval $19,000
22-346+A Alteration Business Uses 13 Jun 2024 24 Jul 2024, Certificate of Approval $2,000
24-149+A New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $159,900
24-149+C New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $159,900
24-149+B New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $159,900
24-149 New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $134,200
24-149+D New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $159,900
24-148 New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $107,700
24-148+A New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $160,900
24-148+B New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $160,900
24-148+C New International Residential Code 14 Jun 2024 30 Jul 2025, Certificate of Occupancy $160,900
24-246+A Alteration International Residential Code 30 Aug 2024 7 Nov 2025, Certificate of Approval $5,600
24-247 New International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Occupancy $193,000
24-247+A Alteration International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Approval $5,600
24-248 New International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Occupancy $193,000
24-248+A Alteration International Residential Code 30 Aug 2024 Open in the state file $5,600
24-249+A Alteration International Residential Code 30 Aug 2024 7 Nov 2025, Certificate of Approval $5,600
24-246 New International Residential Code 30 Aug 2024 7 Nov 2025, Certificate of Occupancy $40,000
24-249 New International Residential Code 30 Aug 2024 7 Nov 2025, Certificate of Occupancy $193,000
24-438+A Alteration International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Approval $5,600
25-242+A Alteration International Residential Code 30 Aug 2024 22 Oct 2025, Certificate of Approval $5,600
24-244+A Alteration International Residential Code 30 Aug 2024 14 Oct 2025, Certificate of Approval $5,600
24-242 New International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Occupancy $193,200
24-245 Alteration International Residential Code 30 Aug 2024 3 Nov 2025, Certificate of Approval $1,500
24-243 New International Residential Code 30 Aug 2024 14 Oct 2025, Certificate of Occupancy $158,200
24-242+A Alteration International Residential Code 30 Aug 2024 Open in the state file $5,600
24-243+A Alteration International Residential Code 30 Aug 2024 14 Oct 2025, Certificate of Approval $5,600
24-244 New International Residential Code 30 Aug 2024 14 Oct 2025, Certificate of Occupancy $193,200
24-241 Alteration International Residential Code 30 Aug 2024 22 Oct 2025, Certificate of Approval $1,500
24-265 Alteration International Residential Code 14 Sep 2024 24 Jul 2025, Certificate of Approval $1,500
24-262 New Multiple family dwellings, dormitories, etc. 14 Sep 2024 9 Jul 2026, Temporary Certificate of Occupancy $8,000,000
24-263 Demolition Accessory buildings and miscellaneous structures 14 Sep 2024 6 May 2025, Certificate of Approval $3,000
24-264 Alteration International Residential Code 14 Sep 2024 24 Jul 2025, Certificate of Approval $1,500
24-320+A Alteration International Residential Code 15 Oct 2024 20 Nov 2025, Certificate of Approval $4,000
24-320 New International Residential Code 15 Oct 2024 20 Nov 2025, Certificate of Occupancy $158,200
24-319+A Alteration International Residential Code 15 Oct 2024 20 Nov 2025, Certificate of Approval $4,000
24-323 Alteration International Residential Code 15 Oct 2024 Open in the state file $1,000
24-262+A Alteration Multiple family dwellings, dormitories, etc. 15 Oct 2024 Open in the state file $500,000

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 Englewood Cliffs Boro construction office.

Flood zone for 800 SYLVAN AVE

FEMA’s flood map places the mapped point for 800 SYLVAN AVE in zone X.

The state’s 10-foot ground scan puts the lowest cell on this lot at 347.8 feet and the highest at 421.3 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 800 SYLVAN AVE

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

This lot is within the Veolia Water NJ Hackensack 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 $41,000,000 —
2025 $41,000,000 $477,650.00
2024 $37,000,000 $427,350.00
2023 $62,327,400 $711,155.63

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 $62,327,400 90.74% $68,687,899 — —
2024 $37,000,000 88.75% $41,690,141 -40.6% -39.3%
2025 $41,000,000 85.99% $47,679,963 +10.8% +14.4%
2026 $41,000,000 80.70% $50,805,452 0.0% +6.6%

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 $62,327,400 1.141 $711,156 $711,155.63 —
2024 $37,000,000 1.155 $427,350 $427,350.00 -39.9%
2025 $41,000,000 1.165 $477,650 $477,650.00 +11.8%
2026 $41,000,000 — — — —

Where your money goes

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

Schools
$183,270 38.4%
County
$107,420 22.5%
Municipal
$186,960 39.1%

Of the estimated increase of $4,100, the school portion moved $6,560 up, the county portion $1,230 down, and the municipal portion $1,230 down. Those are pieces of the dollar change. They are not a change in each share of the rate.

District school (0.447)$183,270
County (0.250)$102,500
County open space (0.012)$4,920
Municipal purpose (0.456)$186,960

Property details

Class4A — Commercial
Building class—
Building—
Land description28.78 AC
Dwellings—
Commercial units—
Year built—
Acreage28.78
Zoning—
Tax map page—
Additional lots—
Census tract / block—
Special tax codes—
MOD-IV current-year tax—
Last sale$36,500,000 · 12/30/2021 · sale assessment $62,327,400
Deed book / page04547 / 00200

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.