This four-bedroom, two-and-a-half-bathroom home offers a fully updated interior with lake views throughout, set in the desirable Mendham Borough. A spacious foyer with a center staircase welcomes you in, leading to bright, light-filled living spaces enhanced by skylights. The layout includes a chef's kitchen with a coffee bar, a cozy fireplace in the main living area, an elegant powder room, and a dedicated mudroom with separate front and back entrances connected to the two-car garage. Upstairs, all four bedrooms offer added privacy, including a primary suite that overlooks the lake and features a spa-like bath with a soaking tub, stand-up shower, and double vanity. Second-floor laundry adds everyday convenience right where you need it. With thoughtful updates and lake views throughout, this move-in-ready home is a rare find in Mendham.
Under contract
$945,000
7 Cosma Pl, Mendham Boro, NJ 07945
4beds
--sqft
:
Get pre-qualified$6,446/mo
Single Family Residence
Built in 1930
10,018 Square Feet Lot
$1,019,800 Zestimate®
$--/sqft
$25/mo HOA
What's special
- 36 days |
- 1,647 |
- 99 |
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Gregory Brozowski 201-994-9087,
Coldwell Banker Realty,
Bonnie Cerra
Source: GSMLS,MLS#: 4039211
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Primary bedroom
- Description: Full Bath, Walk-In Closet
Bedroom 1
- Level: Second
Bedroom 2
- Level: Second
Bedroom 3
- Level: Second
Bedroom 4
- Level: Second
Primary bathroom
- Features: Soaking Tub, Stall Shower
Dining room
- Features: Formal Dining Room
- Level: First
Kitchen
- Features: Kitchen Island, Pantry
- Level: First
Living room
- Level: First
Heating
- Forced Air, Natural Gas
Cooling
- Central Air
Appliances
- Included: Dishwasher, Dryer, Range/Oven-Gas, Refrigerator, Washer, Water Filter, Gas Water Heater
- Laundry: Laundry Room, Level 2
Features
- High Ceilings, Entrance Foyer
- Flooring: Wood
- Basement: None
- Number of fireplaces: 1
- Fireplace features: Living Room, Wood Burning
Property
Parking
- Total spaces: 4
- Parking features: 2 Car Width, Asphalt, Attached Garage
- Attached garage spaces: 2
- Uncovered spaces: 4
Features
- Patio & porch: Patio
- Has view: Yes
- View description: Lake/Water View
- Has water view: Yes
- Water view: Lake/Water View
- Waterfront features: Lake, Lake Privileges
Lot
- Size: 10,018 Square Feet
- Dimensions: 0.230 AC
- Features: Cul-De-Sac
Details
- Parcel number: 2318003040000000030000
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Custom Home
- Property subtype: Single Family Residence
Materials
- Aluminum Siding, Stone
- Roof: Composition Shingle
Condition
- Year built: 1930
- Major remodel year: 2018
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Underground Utilities
Community & HOA
Community
- Security: Smoke Detector(s)
- Subdivision: Cosma Lake
HOA
- Has HOA: Yes
- Services included: See Remarks
- HOA fee: $300 annually
Location
- Region: Mendham
Financial & listing details
- Tax assessed value: $498,500
- Annual tax amount: $12,592
- Date on market: 7/10/2026
- Ownership type: Fee Simple
Estimated market value
$1,019,800
$969,000 - $1.07M
$4,962/mo
Price history
| Date | Event | Price |
|---|---|---|
| 7/22/2026 | Pending sale | $945,000 |
Source:  GSMLS #4039211 Report a problem | ||
| 7/10/2026 | Listed for sale | $945,000+33.1% |
Source: GSMLS #4039211 Report a problem | ||
| 1/4/2019 | Sold | $710,000-1.3% |
Source: GSMLS #3515626 Report a problem | ||
| 12/3/2018 | Listing removed | $4,300 |
Source: C. PENA REAL ESTATE #3513757 Report a problem | ||
| 12/3/2018 | Pending sale | $719,000 |
Source: C. PENA REAL ESTATE #3515626 Report a problem | ||
| 11/14/2018 | Price change | $719,000-4.1% |
Source: C. PENA REAL ESTATE #3515626 Report a problem | ||
| 11/5/2018 | Listed for rent | $4,300 |
Source: C. PENA REAL ESTATE #3513757 Report a problem | ||
| 10/17/2018 | Price change | $749,900-4.2% |
Source: C. PENA REAL ESTATE #3494104 Report a problem | ||
| 9/21/2018 | Price change | $782,500-0.3% |
Source: C. PENA REAL ESTATE #3494104 Report a problem | ||
| 9/12/2018 | Price change | $785,000-1.9% |
Source: C. PENA REAL ESTATE #3494104 Report a problem | ||
| 8/11/2018 | Price change | $799,900-3% |
Source: C. PENA REAL ESTATE #3494104 Report a problem | ||
| 7/27/2018 | Listed for sale | $824,900+205.5% |
Source: C. PENA REAL ESTATE #3490404 Report a problem | ||
| 11/27/2017 | Sold | $270,000-8.5% |
Source: GSMLS #3414446 Report a problem | ||
| 10/12/2017 | Pending sale | $295,000 |
Source: Weichert Realtors #3414446 Report a problem | ||
| 9/18/2017 | Price change | $295,000-24.2% |
Source: Weichert Realtors #3414446 Report a problem | ||
| 8/30/2017 | Listed for sale | $389,000 |
Source: Weichert Realtors #3414446 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $12,263 | $498,500 |
| 2024 | $12,263 +0.2% | $498,500 |
| 2023 | $12,233 +2.9% | $498,500 |
| 2022 | $11,884 +1.8% | $498,500 |
| 2021 | $11,675 +4.2% | $498,500 |
| 2020 | $11,201 +24.5% | $498,500 +19.4% |
| 2019 | $9,000 +4.6% | $417,600 |
| 2018 | $8,602 +3.2% | $417,600 +3% |
| 2017 | $8,334 +2.3% | $405,500 |
| 2016 | $8,144 +2.8% | $405,500 |
| 2015 | $7,925 +3.1% | $405,500 |
| 2014 | $7,686 +2.7% | $405,500 |
| 2012 | $7,487 +0.5% | $405,500 |
| 2011 | $7,450 +16.2% | $405,500 |
| 2010 | $6,413 +4.8% | $405,500 -7.2% |
| 2009 | $6,120 | $436,900 |
| 2008 | -- | $436,900 |
| 2007 | -- | $436,900 |
| 2006 | -- | $436,900 +195.8% |
| 2005 | -- | $147,700 |
| 2004 | -- | $147,700 |
| 2003 | -- | $147,700 |
| 2002 | -- | $147,700 |
| 2001 | -- | $147,700 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 07945
Nearby schools
GreatSchools rating
- 9/10Mountain View Middle SchoolGrades: 5-8Distance: 0.5 mi
- 10/10West Morris Mendham High SchoolGrades: 9-12Distance: 1 mi
- 7/10Hilltop SchoolGrades: PK-4Distance: 0.6 mi
Schools provided by the listing agent
- Elementary: Hilltop
- Middle: Mt.view
- High: W.m.mendham
Source: GSMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
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