Mountain Lakes Boro NJ property tax rate 2025: 2.299 after reassessment
Mountain Lakes Boro, Morris County. 1,766 parcels in the MOD-IV 2026 file. Rate shown is tax year 2025 (latest available — not yet matched to assessment year).
2026 revaluation/reassessment town — 2026 general tax rate not in our warehouse yet. Showing 2025 rate against 2026 assessments; YoY % is withheld until the matching rate posts.
Mountain Lakes Boro at a glance
1,766 parcels are on the 2026 file. The 2025 general rate is 2.299, and the prior rate on file is 2.388 for 2024. A typical class 2 assessment is $1,140,532. Usable sales with a 2025 deed: 53, median $1,200,000. The state construction file lists 2,392 permits here. The median class 2 house was built in 1950. A property page adds that parcel’s permits, flood zone, mapped flood elevation, and high and low ground. Owner names are not shown.
How to read a Mountain Lakes Boro bill
Mountain Lakes Boro’s general rate of 2.299 is tax year 2025 on the 2026 assessment file. It is not a 2026 bill. The prior general rate on file is 2.388 for 2024. This municipality is on the 2026 reassessment list, so the rate move is the roll being reset. It is not, by itself, the change in the bill. School, county, and municipal shares of this rate are 69.0%, 11.4%, and 19.6%. The largest slice is schools. In Morris County the middle school share for rate year 2025 is 62.9% in Netcong Boro. Class 2 net assessments changed from $1,514,724,500 to $1,648,068,900, up 8.8%, on 1,445 parcels. Usable sales with a 2025 deed: median $1,200,000 (53 sales). The largest class share of net assessed value is Residential at 82.7%. State school aid is outside these bars.
Building permits in Mountain Lakes Boro
The New Jersey construction-permit file lists 2,392 permits in Mountain Lakes Boro. This file is a full record from 2021 on. Older permits are mostly missing. Work from before then can be missing here and still be at the Mountain Lakes Boro construction office.
2025 general tax rate in Mountain Lakes Boro: 2.299
This general rate is tax year 2025. The assessment file is 2026. It is not a 2026 bill.
In Morris County, the median municipality’s school share (rate year 2025) is 62.9%; this town is 69.0%. The largest slice here is schools. State school aid is not in these bars — it reduces the school levy before the rate is struck. All Morris towns · How NJ taxes work.
The school percent is the local property-tax levy. The district for this municipality is Mountain Lakes Boro (K-12), FY2027 K–12 aid $1,265,299. Those aid figures are not slices of these bars. Morris district table.
Prior year (2024) general rate: 2.388.
Tax on a $200,000 or $500,000 sale in Mountain Lakes Boro
These figures use Mountain Lakes Boro’s own ratio and general rate. How the same sale price is calculated for every town. This is not an appraisal and not a collector bill.
2025
A $500,000 sale at the 2025 ratio of 84.54% would be assessed at about $422,700. At the general rate of 2.299, the estimated tax is $9,718. A $200,000 sale at that same ratio and rate would be assessed at about $169,080, with an estimated tax of $3,887.
In Morris County for 2025, the $500,000 bill runs from $4,917 in Harding Twp to $14,240 in Netcong Boro. The middle bill is $9,881 in Chester Boro. All Morris towns.
See every New Jersey town on the same $200,000 and $500,000 sale for 2025.
Recent usable sales in Mountain Lakes Boro
These are the five newest usable deeds on the 2026 file for Mountain Lakes Boro. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded in town.
| Address | Deed date | Sale price | Net assessment |
|---|---|---|---|
| 012 OVERLOOK RD | 12/8/2025 | $1,199,000 | $1,196,200 |
| 038 ROBIN HOOD DR | 12/5/2025 | $958,888 | $902,900 |
| 021 POLLARD RD | 11/17/2025 | $1,350,000 | $1,186,600 |
| 003 FERNWOOD TRL | 10/31/2025 | $600,000 | $612,100 |
| 330 MORRIS AVE | 10/31/2025 | $860,000 | $903,800 |
Owner names are not shown. The rate year and the assessment file year differ, so this table does not print an estimated tax. This is not a collector’s bill.
Highest estimated tax in Mountain Lakes Boro: $89,181
Residential
The highest residential estimate in Mountain Lakes Boro is $89,181 at 015 CRESTVIEW RD, on a net assessment of $3,879,100 and a 2025 general rate of 2.299.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 015 CRESTVIEW RD | 2 — Residential (four families or less) | $3,879,100 | 2025 | $89,181 |
| 100 LAUREL HILL RD | 2 — Residential (four families or less) | $3,513,000 | 2025 | $80,764 |
| 324 BLVD | 2 — Residential (four families or less) | $3,426,300 | 2025 | $78,771 |
| 330 BLVD | 2 — Residential (four families or less) | $3,361,400 | 2025 | $77,279 |
| 034 WEST SHORE RD | 2 — Residential (four families or less) | $3,221,200 | 2025 | $74,055 |
Business
The highest business estimate in Mountain Lakes Boro is $505,093 at 23 BLOOMFIELD AVE, on a net assessment of $21,970,100 and a 2025 general rate of 2.299.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 23 BLOOMFIELD AVE | 4A — Commercial | $21,970,100 | 2025 | $505,093 |
| 333 ROUTE 46 | 4A — Commercial | $13,127,900 | 2025 | $301,810 |
| 49 BLOOMFIELD AVE | 4A — Commercial | $7,174,800 | 2025 | $164,949 |
| 1 BLOOMFIELD AVE | 4A — Commercial | $7,163,000 | 2025 | $164,677 |
| 105 ROUTE 46 | 4A — Commercial | $5,757,500 | 2025 | $132,365 |
Owner names are not shown. Every parcel in this town uses the same rate, so the highest tax is the highest assessment. Commercial and industrial parcels (class 4A and 4B) are the business list. Apartment buildings are class 4C and are not in that list. This is not a collector’s bill.
Ratable base in Mountain Lakes Boro, typical class 2 assessment $1,140,532
Class 2 residential in the MOD-IV file: 1,445 parcels, average net assessment $1,140,532.
How assessments changed
Class 2 residential net assessments changed from $1,514,724,500 to $1,648,068,900, up 8.8%, on 1,445 parcels that have both a prior net and a 2026 net. This is the reassessment roll. It is not the change in the tax bill.
Among 53 usable recorded sales whose latest deed on this file is in 2025, the median price is $1,200,000. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded that year.
Share of net assessed value by property class (MOD-IV). Not a school-quality rating.
| Class | Parcels | Net assessed | % of net |
|---|---|---|---|
| Residential 2 | 1,445 | $1,648,068,900 | 82.7% |
| Vacant land 1 | 228 | $207,445,800 | 10.4% |
| Commercial 4A | 85 | $129,724,500 | 6.5% |
| Industrial 4B | 3 | $5,282,900 | 0.3% |
| Farm (qualified) 3B | 3 | $1,700 | 0.0% |
| Other / unclassified other | 2 | $3,140,500 | 0.2% |
Housing stock in Mountain Lakes Boro, median year built 1950
On the 2026 file, class 2 houses in Mountain Lakes Boro with a year built have a median year of 1950, about 76 years old. Of those 1,437 houses, the largest share was built Before 1940. This is the assessor’s year built. It is not a ranking of towns.
By parcel count, Residential 81.8%, Vacant land 12.9%, Commercial 4.8%, Industrial 0.2%, Farm (qualified) 0.2%, Other / unclassified 0.1%. Those percentages are a count of parcels, not a share of tax dollars. The class table uses the tax-base share.
Year built
Assessor building line
Grouped from the assessor’s building abbreviation. One-family, two-family, and condo are the codes that read clearly. Other codes stay in their own group. This is not a bedroom count, and square feet are left off because most records do not include them.