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MLS ID KEY1064923Last updated Oct 21, 2026

Single Family

23 Hillcrest Drive

Active · Carmel · Putnam County, NY 10541

Bedrooms
6 Beds
Bathrooms
6 Baths
Year built
2007
Est. monthly taxes
$2,858.33
Property gallery0 / 49
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About this home

Extraordinary Compound or Weekend Retreat in Beautiful "LAKE MAHOPAC". This is a rare opportunity to own a truly exceptional estate in "LAKE MAHOPAC"—a magnificent 6-bedroom, 5.5-bath custom-built Colonial with over 6,000 square feet of elegant living space. Set atop a private road at the end of a cul-de-sac, the home is nestled on 3.47 level, beautifully landscaped acres and includes deeded lake rights to a private 100-foot sandy beach and boat dock on the spectacular, motorboat-friendly Lake Mahopac. The moment you enter the grand two-story foyer; you're greeted by a stunning custom staircase and an abundance of natural light. The interior showcases soaring 10-foot ceilings, elegant arched openings, detailed moldings, and inlaid hardwood floors. The gourmet island kitchen is a chef’s dream, featuring a picture window breakfast area, Sub-Zero refrigerator, Wolf stove, wine cooler, and newly added Bosch microwave, Bosch dishwasher, and GE Profile Advantium double wall oven with European convection, air fry, steam bake, and sous vide modes. A second staircase conveniently connects the kitchen to the upper level. The spacious family room includes a floor-to-ceiling stone fireplace, while the large formal dining room and elegant living room provide perfect spaces for entertaining. A private office completes the main floor. Upstairs, the luxurious primary suite is truly one-of-a-kind. It includes tray ceilings, a large separate sitting room with sliding doors to a beautiful cedar three-season room featuring a propane heater. The oversize spa-style primary bath includes a soaking tub, a separate shower and dual sinks. The primary bedroom includes custom his-and-her walk-in closets with built-in Birchwood cabinetry and another stone fireplace. The second floor also offers a Jack and Jill suite, a Princess suite, two additional bedrooms (one with an en suite bath), a full hall bath, and a laundry room with a brand-new washer. The recently completed lower level adds 1,492 square feet of finished space with 9-foot ceilings. It’s divided between a massive recreation/game room with space for a home theater, billiards, ping pong, and more, and a fully equipped "LEGAL ACCESSORY APARTMENT" with its own private entrance, one bedroom, living room, kitchen, and a spa-like full bath with radiant heated floors. This space is ideal for in-laws, an au-pair, extended family, or guests. A full staircase leads to the expansive attic, which is the length of the home and already floored for storage. The oversized three-car garage includes a second staircase down to the lower level for added convenience. The exterior of the home is finished with durable, no-maintenance "Hardiplank" siding. The landscaping is professionally designed with custom lighting, a sprinkler and irrigation system, and a newly redesigned and rebuilt driveway and private road lined with elegant Belgian block. At the entrance, new custom-built stone pillars with dramatic lighting make a stunning first impression. Recent additions include a new central vacuum system, stadium-quality outdoor floodlights, a paved area for winter boat storage, and a brand-new Arctic cedar saltwater hot tub (available for purchase). Home has been wired for portable generator hook-up. The entire home has also been freshly painted and is in pristine, move-in condition. Located just a five-minute walk from the private beach and only an hour from New York City, this remarkable property combines the serenity of lakefront living with the convenience of nearby highways and Metro-North access. Whether you're looking for a spacious compound, an elegant full-time residence, or a luxurious weekend escape, this home offers it all.

Listing snapshot

Days on site
8 days
Listed on MLS
Oct 20, 2026
Full baths
5
Half baths
1
Annual property tax (MLS)
$34,300
Tax year
2025
Association / maintenance fees (MLS)
$350 / Annually
Fees include (MLS)
Common Area Maintenance
Area source (MLS)
Public Records
Listing brokerage
Coldwell Banker Realty
MLS ID
KEY1064923
Last updated
Oct 21, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
2007
Garage
Yes
Garage spaces
3
Total parking
12
Parking
Driveway, Garage, Private, Shared Driveway
Water source
Well
Sewer
Septic Tank
Utilities
Cable Connected, Electricity Connected, Propane, Trash Collection Public, Underground Utilities, Water Connected

Interior features

Basement
Finished, See Remarks, Walk-Out Access
Heating
Hydro Air, Oil
Cooling
Central Air
Interior
Chandelier, Chefs Kitchen, Crown Molding, Eat-in Kitchen, Entrance Foyer, Formal Dining, Granite Counters, His and Hers Closets, In-Law Floorplan, Kitchen Island, Primary Bathroom, Open Kitchen, Recessed Lighting, Walk Through Kitchen
Appliances
Convection Oven, Dishwasher, Dryer, Gas Cooktop, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Indirect Water Heater, Wine Refrigerator
Flooring
Hardwood
Fireplace
Yes
Fireplaces
2

Exterior features

Architectural style
Includes Legal Accessory Apartment, Colonial
Construction materials
Cedar, Fiberglass Insulation, HardiPlank Type
Private pool
No

Schools (MLS)

Elementary school
Fulmar Road Elementary School
Elementary school district
Mahopac
Middle school
Mahopac Middle School
Middle school district
Mahopac
High school
Mahopac High School
High school district
Mahopac

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. First seen on this site
  3. MLS status changed

Location

Carmel · Putnam County, NY 10541Show interactive map
23 Hillcrest Drive

Carmel · Putnam County, NY 10541

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Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
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Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

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Listing data is supplied by the MLS and may change without notice.