129 Round Swamp Rd


















































Description
Impeccably improved and maintained by its original owner since 2001, this exceptional 5-bedroom, single-family residence offers the perfect blend of grand design, modern luxury, and total privacy. Set on a generous lot with a sweeping driveway, the home makes a statement from the moment you arrive — and delivers on every promise once inside.
A commanding two-story foyer and elegant sweeping staircase set the tone, flowing into...Welcome to This Stunning Postmodern Masterpiece in Half Hollow Hills SD.
Impeccably improved and maintained by its original owner since 2001, this exceptional 5-bedroom, single-family residence offers the perfect blend of grand design, modern luxury, and total privacy. Set on a generous lot with a sweeping driveway, the home makes a statement from the moment you arrive — and delivers on every promise once inside.
A commanding two-story foyer and elegant sweeping staircase set the tone, flowing into expansive formal living and dining rooms. The heart of the home is a chef's kitchen equipped with premium Sub-Zero appliances, a breakfast bar, and a casual dining area that opens seamlessly into a warm, inviting den — all overlooking a spectacular backyard retreat complete with a large patio, a fully equipped outdoor kitchen, and a sparkling in-ground pool.
A versatile first-floor bedroom suite with a private bath and separate entrance offers endless flexibility — whether as a home office, nanny suite, or in-law accommodations. A dedicated pantry, laundry room, and an oversized 3-car garage round out the main level.
Upstairs, the primary suite is a true sanctuary, featuring dual walk-in closets and a spacious ensuite bath. Three additional generously sized bedrooms, a large shared bath, and a bonus space provide room for everyone and everything.
The fully finished basement with high ceilings effectively doubles the home's living space — ready to become a home theater, gym, playroom, or whatever suits your lifestyle. Basement is accessible by legal outside entrance.
Located in the highly coveted Half Hollow Hills School District, this one-owner gem offers the privacy, space, and luxury today's discerning buyer demands.
Listing Agents
melissa.dangelo@compass.comP: (516)-324-8826
jeanmarie.blissett@compass.comP: (917)-608-8979
Property Details for 129 Round Swamp Road
Property Details for 129 Round Swamp Road
| Status | Active |
|---|---|
| MLS # | 979531 |
| Days on Market | 3 |
| Taxes | $30,948 / year |
| HOA Fees | - |
| Condo/Co-op Fees | - |
| Property Type | Single Family |
| MLS Type | Single Family |
| Year Built | 2002 |
| Lot Size | 1.33 AC / 57,935 SF |
| County | Suffolk County |
| Buyer's Agent Compensation | 2% |
Location
Building Information for 129 Round Swamp Road
Payment Calculator
$15,168 per month
30 year fixed, 6.46% Interest
$12,589
$2,579
$0
Property Information for 129 Round Swamp Road
- Senior Community YN: No
- Property Attached: No
- Structure Type: Detached
- State Or Province: NY
- Water Access YN: No
- School District: Half Hollow Hills
- Elementary School District: Half Hollow Hills
- Elementary School: Sunquam Elementary School
- Middle Or Junior School District: Half Hollow Hills
- Middle Or Junior School: West Hollow Middle School
- High School District: Half Hollow Hills
- High School: Half Hollow Hills High School East
- Lease Considered: No
- Building Units Total: 1
- Room Level: First
- Room Type: Living Room
- RoomDescription 1: Beautiful multi-purpose space with two walls of windows and entrance into den
- Room Level: First
- Room Type: Dining Room
- Room Description: Formal dining room with space for over-sized table
- Room Level: First
- Room Type: Kitchen
- Room Description: Hi-end Chef's kitchen with sub-zero applicances, breakfast bar and full pantry
- Room Level: First
- Room Type: Den
- Room Description: Open-concept den flowing from kitchen with wood-burning fireplace
- Room Level: First
- Room Type: Bedroom 1
- Room Description: First floor bedroom with walk in closet, full attached bath and adjacent outside entrance
- Room Level: First
- Room Type: Bathroom 1
- Room Description: Full bath attached to first-floor bedroom
- Room Level: First
- Room Type: Laundry
- Room Description: Spacious laundry room featuring washer, dryer and sink
- Room Level: Second
- Room Type: Bedroom 3
- Room Description: 3 large bedrooms of equal size, all with large windows for light and closets for storage
- Room Level: Second
- Room Type: Primary Bedroom
- Room Description: Expansive suite with tray ceilings, brazilian cherrywood floors, double walk-in closets, make-up vanity and full bath
- Room Level: Second
- Room Type: Primary Bathroom
- Room Description: Light and airy full bath with double vanity, large shower stall, soaking tub, linen closet and private WC
- Room Level: Second
- Room Type: Bedroom 4
- Room Description: 3 large bedrooms of equal size, all with large windows for light and closets for storage
- Room Level: Second
- Room Type: Bathroom 2
- Room Description: Beautiful light and bright hall bath with large vanity and double sinks
- Room Level: Second
- Room Type: Bedroom 5
- Room Description: 3 large bedrooms of equal size, all with large windows for light and closets for storage
- Room Level: Second
- Room Type: Auxiliary Room
- Room Description: This flexible space can be a large linen closet, home office or additional bathroom
- Parcel Number: 0400-227-00-01-00-036-000
- Tax Assessed Value: $7,800.00
- Included In Taxes: Trash
- Additional Fees: No
- Tax Source: Municipality
- Tax Year: 2025.0
- Association: No
- Amenities: 1st Floor Bedrm, Carpet, Cathedral/Vaulted/High Ceiling, Ceiling Fan(s), Central Vacuum, Ceramic Tile, Chandelier, Chefs Kitchen, Crown Molding, Double Pane Windows, Double Vanity, ENERGY STAR Qualified Door(s), Eat in Kitchen, Electric Dryer Hookup, Entrance Foyer, First Floor Full Bath, Formal Dining, Granite Counters, Hardwood Floors As Seen, High Ceilings, High Speed Internet, His and Hers Closets, In Ground, In-Law Floorplan, Kitchen Island, Laundry Room, Open Floorplan, Open Kitchen, Pantry, Patio, Post Modern, Primary Bathroom, Public, Recessed Lighting, Security System, Smart Thermostat, Soaking Tub, Sound System, Storage, Tray Ceiling(s), Vinyl, Walk In Closet, Washer/Dryer Hookup, Wired for Sound, Wood Burning
- Interior Features: First Floor Bedroom, First Floor Full Bath, Cathedral Ceiling(s), Ceiling Fan(s), Central Vacuum, Chandelier, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, ENERGY STAR Qualified Door(s), Entrance Foyer, Formal Dining, Granite Counters, High Ceilings, High Speed Internet, His and Hers Closets, In-Law Floorplan, Kitchen Island, Open Floorplan, Open Kitchen, Pantry, Primary Bathroom, Recessed Lighting, Smart Thermostat, Soaking Tub, Sound System, Storage, Tray Ceiling(s), Walk-In Closet(s), Washer/Dryer Hookup, Wired for Sound
- Appliances: Cooktop, Dishwasher, Dryer, ENERGY STAR Qualified Appliances, Gas Oven, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Washer, Water Purifier Owned
- Number Of Kitchens: 1.0
- Total Rooms: 10
- Basement: Finished, Full, Storage Space, Walk-Out Access
- Attic Description: Scuttle,Unfinished
- Fireplace: Yes
- Fireplaces Total: 1
- Fireplace Features: Wood Burning
- Location Amenities: Stainless Steel Appliances, Walk Out Basement, Hardwood Floors As Seen, 1st Fl Master Bedroom, Cathedral/Vaulted/High Ceiling, Chef's Kitchen, Dual Sinks, Eat in Kitchen, Entry Foyer, Foyer, Formal Dining Room, Granit Countertops, High Ceilings, High Speed Internet, Island Kitchen, Open Kitchen, Pantry, Soacking Tub, Storage, Walk In Closet, WD Hookup, Garden, Privacy, Patio, In Ground Pool, Security System, Double Paned Windows
- Laundry Features: Electric Dryer Hookup, Laundry Room
- Security Features: Security System
- Spa: Yes
- Window Features: Double Pane Windows
- Flooring: Carpet, Ceramic Tile, Hardwood
- Living Area: 4,000.00
- Foundation Details: Concrete Perimeter
- Basement: Yes
- Exterior Property Features: In Ground, Vinyl, Patio, Driveway, Garage, Off Street, Private, Double Pane Windows, Back Yard, Cleared, Front Yard, Garden, Landscaped
- Elevation Certificate: No
- Patio And Porch Features: Patio
- Construction Materials: Stucco
- Horse: No
- Pool Private: Yes
- Pool Features: In Ground, Vinyl
- Pool Details: In Ground,Vinyl
- Lot Features: Back Yard, Cleared, Front Yard, Garden, Landscaped, Private
- Additional Parcel: No
- Site Features: Back Yard, Cleared, Front Yard, Garden, Landscaped, Private
- Building Area Units: Square Feet
- Parking Features: Driveway, Garage, Off Street, Private
- Parking Total: 20.00
- Garage: Yes
- Carport: No
- Cooling: Central Air
- Heating: Forced Air, Natural Gas
- Heat Fuel Type: Forced Air, Natural Gas
- Number Of Heating Zones: 3
- Sewer: Septic Tank
- Water Source: Public
- Utilities: Cable Connected, Electricity Available, Natural Gas Connected, Sewer Connected, Water Available, Water Connected
- Green Features: Double Pane Windows, Cooktop, Dishwasher, Dryer, ENERGY STAR Qualified Appliances, Gas Oven, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Washer, Water Purifier Owned, Forced Air, Natural Gas, In Ground, Vinyl
- Down Payment Resource: No
Property History for 129 Round Swamp Road
| Date | Event & Source | Price | Appreciation |
|---|---|---|---|
| Apr 16, 2026 | Listed (Active) ONEKEY #979531 | $2,500,000 | — |
| Jan 31, 2002 | Sold (Public Record) Public Record #86201195 | $940,000 | — |
| Date | Event & Source | Price |
|---|---|---|
| 04/16/2026 | Listed (Active) ONEKEY #979531 | $2,500,000 |
| 01/31/2002 | Sold (Public Record) Public Record #86201195 | $940,000 |
For completeness, Compass often displays two records for one sale: the MLS record and the public record.
Public Records for 129 Round Swamp Road
Schools near 129 Round Swamp Road
Rating | School | Type | Grades | Distance |
|---|---|---|---|---|
| Public - | K to 5 | |||
| Public - | 6 to 8 | |||
| Public - | 9 to 12 |
Rating | School | Distance |
|---|---|---|
Sunquam Elementary School PublicK to 5 | ||
West Hollow Middle School Public6 to 8 | ||
Half Hollow Hills High School East Public9 to 12 |
School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.
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Based on information submitted to the MLS GRID as of 04/18/2026 01:39 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.





















































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