Sold
Last Sold Price
5 beds7,961 sqft$204/sqft
12400 Triadelphia Rd, Ellicott City, MD 21042
Single FamilyProperty Type
7.93 acresLot Size
1993Year Built
$204/sq ftPrice per sq ft
3 carsParking Spaces

Description

Welcome to this exceptional estate set on over seven picturesque acres, tucked away on a private wooded lot that offers your own hidden retreat. The possibilities are endless in this impressive and inviting home in Triadelphia Woods. A gated driveway leads to a spacious three-car garage and a grand entry that sets the tone the moment you arrive. Inside, a dramatic two-story foyer with a curved staircase, soaring ceilings, and oversized arched windows fills the home with natural light. Hardwood floors,...Welcome to this exceptional estate set on over seven picturesque acres, tucked away on a private wooded lot that offers your own hidden retreat. The possibilities are endless in this impressive and inviting home in Triadelphia Woods. A gated driveway leads to a spacious three-car garage and a grand entry that sets the tone the moment you arrive. Inside, a dramatic two-story foyer with a curved staircase, soaring ceilings, and oversized arched windows fills the home with natural light. Hardwood floors, long sightlines, and panoramic tree views create an immediate sense of calm. The two-story family room is a showstopper with its wall of windows and exposed brick fireplace. From there, enjoy the open and updated kitchen, ideal for gathering, with a center island with seating, dual ovens, a glass-front Sub-Zero fridge, Wolf induction cooktop, desk nook, and extensive cabinetry with custom rollouts. A formal dining room and a charming enclosed sunroom with an electric wood-burning stove add even more flexibility. A separate entry area with a pantry and coat closet, an updated powder room, and a large laundry room with built-ins, a utility sink, and garage access offer everyday convenience. The sun-filled main-floor home office is the perfect spot for working from home year-round with stunning views. A standout feature of the home is the expansive main-floor primary suite, your own private oasis. French doors open to the back deck, and a bonus room provides space for a home office, gym, or sitting room. The renovated spa-like bath features dual vanities, backlit mirrors, a soaking tub, a walk-in shower with beautiful tile, and a separate water closet. Two walk-in closets offer generous storage. Upstairs, two separate wings provide privacy for family or guests. One side includes a bright bedroom with a beautifully renovated bath with dual vanities and a walk-in shower, plus access to a walk-up attic and an attached loft with LVP flooring and beamed ceilings perfect for a studio or office. The opposite wing includes a bedroom with its own renovated en suite bath and dual closets, along with two additional bedrooms connected by a renovated Jack and Jill bath with dual vanities and a separate water closet and tub/shower. Above the garage, a spacious loft provides even more bonus space for a playroom, creative studio, or upper-level family room. The lower level is designed for both fun and function. A secondary kitchen, two-level rec room with an electric fireplace and stone mantle, walkout access to the yard, and dramatic two-story ceilings make it an entertainer’s dream. You’ll also find a full bathroom, two bonus rooms ideal for a gym, theater, or golf simulator, a large utility and storage room, and an oversized heated workshop with yard access. Outside, the property shines as a private sanctuary and offers ample versatility. A huge deck spans the back of the house overlooking peaceful wooded views. A lower-level patio, stone-lined pond, and abundant gardening space complete the setting. Picture a quiet snow day with the woods blanketed in white, and this home becomes even more magical. This estate offers exceptional space, privacy, and flexibility, ready to adapt to the way you live and entertain. Improvements include the following: All bathrooms renovated; new kitchen appliances; newer roof; newer HVAC systems; extensive landscape, and more!
  • Listed by: Carolyn N Sappenfield 240.353.7601 carolyn@carolynhomes.com • TTR Sotheby's International Realty
  • Listed by: Hannah Moholt 301.873.6179 hannah@carolynhomes.com • TTR Sotheby's International Realty
Listing closed: 01/15/2026 12:00 AM • Source: BRIGHT, MLS#: MDHW2061938

Recent comparable sales

Median sold price

$1,450,000

Avg days on market

24

Sale-to-list ratio

95.5%

Ellicott City, MD

9 comparable properties found

a front view of a house with a yard table and chairs
1/2
1

$1,450,000

Sold 05/26/26

5
Bedrooms
7,578
Square Feet
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a front view of a house with a yard and garage
1/78
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Sold 07/16/26

5
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8,558
Square Feet
1.12
Acres
$1,500,000 | 11516 East Winchester Lane, Ellicott City, MD 21042
1/2
3

$1,500,000

Sold 10/02/24

5
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Square Feet
4.42
Acres
a front view of a house with a yard
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$1,955,000

Sold 05/30/25

5
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Square Feet
0.77
Acres
an aerial view of green landscape with trees houses and mountain view
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$1,250,000

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a front view of a house with a yard
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$2,050,000

Sold 05/26/26

5
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Square Feet
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Acres
an aerial view of a house with a yard and garden
1/93
7

$1,846,000

Sold 11/12/25

6
Bedrooms
7,609
Square Feet
3.36
Acres
$1,449,000 | 3028 Seneca Chief Trail, Ellicott City, MD 21042
1/90
8

$1,449,000

Sold 10/16/25

5
Bedrooms
6,938
Square Feet
0.93
Acres
$1,324,900 | 12652 Golden Oak Drive, Ellicott City, MD 21042
1/76
9

$1,324,900

Sold 02/23/26

5
Bedrooms
5,681
Square Feet
3.52
Acres

Location

Listing Courtesy of TTR Sotheby's International Realty

Sold By Redfin Corp

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Property Information for 12400 Triadelphia Road

Property Details
  • Taxes: $21,730 / year
  • MLS Type: Residential / Fee Simple
  • Tax ID Number: 1403312968
  • Ownership: Fee Simple
  • Condo Coop Association: No
  • HOA: No
  • Structure Type: Detached
  • Style: Transitional
  • Levels/Stories: 3
  • Furnished: No
  • Waterfront: No
  • Views: Trees/Woods
  • Garage: Yes
  • Expected On Market Date: 11-24-2025
  • Subdivision: TRIADELPHIA WOODS
  • Subdivision: TRIADELPHIA WOODS (HOWARD MD)
  • Total Parking Spaces: 3
  • Central Air: Yes
  • Basement: Yes
  • Above Grade Finished SQFT: 7,961.00
  • Above Grade Fin SQFT Source: Assessor
  • Below Grade Finished SQFT: .00
  • Below Grade Fin SQFT Source: Assessor
  • Below Grade Unfinished SQFT: 3,631.00
  • Below Grade Unfin SQFT Source: Assessor
  • Total Below Grade SQFT: 3,631.00
  • Total Below Grade SQFT Source: Assessor
  • New Construction: No
  • Property Condition: Excellent
Building Information
  • Stories: 3
  • Year Built: 1993
  • Lot Size: 7.93 AC / 345,431 SF
Location
Location
  • In City Limits: No
  • School District Name: HOWARD COUNTY PUBLIC SCHOOLS
  • School District County ID: 803971799792
  • SchoolDistrictSource: Listing Agent
  • County: HOWARD
Waterfront / Water Access
Waterfront / Water Access
  • Water View: No
  • Water Access: No
  • Water Oriented: No
  • Navigable Water: No
  • Tidal Water: No
  • Riparian Rights Y/N: No
Association / Community Info
Association / Community Info
  • Senior Community: No
Taxes and Assessment
Taxes and Assessment
  • Tax Year: 2025
  • Tax Assessed Value: $1,565,133
  • Year Assessed: 2025
  • County Tax: $17,885
  • Improvement Assessed Value: $1,378,900
  • Land Assessed Value: $372,900
  • Clean Green Assessed: No
  • Front Foot Fee: $0
  • Front Foot Fee Payment Frequency: Annually
  • Municipal Trash: Yes
  • Land Use Code: R
  • Refuse Fee: $365
  • Loss Mitigation Fee: No
  • Agricultural Tax Due: No
  • Historic: No
  • Zoning: RRDEO
  • Tax Lot: 10
  • School Tax: $0
  • Automatically Update Tax Values Y/N: Yes
Rooms
Main
  • # Bedrooms Count Main Level: 1
  • # Bathrooms Count Main Level: 2
  • # Bathrooms Full Main Level: 1
  • # Bathrooms Half Main Level: 1
All Upper Levels
  • # Bedrooms Count All Upper Levels: 4
  • # Bathrooms Count All Upper Levels: 3
  • # Bathrooms Full All Upper Levels: 3
Upper Level 1
  • # Bedrooms Count Upper Level: 4
  • # Bathrooms Count Upper Level: 3
  • # Bathrooms Full Upper Level: 3
All Lower Levels
  • # Bathrooms All Lower Levels: 1
  • # Bathrooms Full All Lower Levels: 1
Lower Level 1
  • # Bathrooms Lower Level: 1
  • # Bathrooms Full Lower Level: 1
Rooms
  • Room List: Dining Room, Primary Bedroom, Kitchen, Family Room, Foyer, Breakfast Room, Study, Sun/Florida Room, Great Room, Laundry, Loft, Storage Room, Utility Room, Workshop, Efficiency (Additional), Hobby Room
  • Stories: Lower 1, Main, Upper 1
Rooms Information
Room 1
  • Room Type: Loft
  • Room Level: Upper 1
  • Room Exists: Yes
Room 2
  • Room Type: Hobby Room
  • Room Level: Upper 1
  • Room Exists: Yes
Room 3
  • Room Type: Breakfast Room
  • Room Level: Main
  • Room Exists: Yes
Room 4
  • Room Type: Dining Room
  • Room Level: Main
  • Room Exists: Yes
Room 5
  • Room Type: Family Room
  • Room Level: Main
  • Room Exists: Yes
Room 6
  • Room Type: Foyer
  • Room Level: Main
  • Room Exists: Yes
Room 7
  • Room Type: Kitchen
  • Room Level: Main
  • Room Exists: Yes
Room 8
  • Room Type: Laundry
  • Room Level: Main
  • Room Exists: Yes
Room 9
  • Room Type: Primary Bedroom
  • Room Level: Main
  • Room Exists: Yes
Room 10
  • Room Type: Sun/Florida Room
  • Room Level: Main
  • Room Exists: Yes
Room 11
  • Room Type: Study
  • Room Level: Main
  • Room Exists: Yes
Room 12
  • Room Type: Great Room
  • Room Level: Lower 1
  • Room Exists: Yes
Room 13
  • Room Type: Workshop
  • Room Level: Lower 1
  • Room Exists: Yes
Room 14
  • Room Type: Utility Room
  • Room Level: Lower 1
  • Room Exists: Yes
Room 15
  • Room Type: Storage Room
  • Room Level: Lower 1
  • Room Exists: Yes
Room 16
  • Room Type: Efficiency (Additional)
  • Room Level: Lower 1
  • Room Exists: Yes
Room 17
  • Room Type: Hobby Room
  • Room Level: Lower 1
  • Room Exists: Yes
Building Info
Building Info
  • Total Finished SQFT: 7,961.00
  • Total Finished SQFT Source: Assessor
  • Tax Total Finished SQFT: 7,961.00
  • Total SQFT: 11,592.00
  • Total SQFT Source: Assessor
  • Construction Materials: Brick
  • Roof: Architectural Shingle
  • Wall and Ceiling Types: 9'+ Ceilings, 2 Story Ceilings, Beamed Ceilings
  • Flooring Type: Hardwood, Carpet, Ceramic Tile
  • Basement Type: Connecting Stairway, Fully Finished, Interior Access, Outside Entrance, Daylight, Partial, Walkout Level, Windows
  • Foundation Details: Brick/Mortar
  • Room and Floor: Bedrooms-Main Level-1, Bathrooms Full-Main Level-1, Bathrooms Half-Main Level-1, Bedrooms-Upper Level 1-1, Bedrooms-Upper Level 1-2, Bedrooms-Upper Level 1-3, Bedrooms-Upper Level 1-4, Bathrooms Full-Upper Level 1-1, Bathrooms Full-Upper Level 1-2, Bathrooms Full-Upper Level 1-3, Bathrooms Full-Lower Level 1-1
  • # Bathrooms Full: 5
  • # Bathrooms Half: 1
  • Other Structure: Above Grade, Below Grade
Lot / Land Information
Lot / Land Information
  • Lot Size Source: Assessor
  • Location Type: Suburban
  • Parcel ID: 15378253
  • Ground Rent Exists: No
Parking
Parking
  • Type Of Parking: Attached Garage, Driveway
  • Num of Attached Garage Spaces: 3
  • Total Garage Spaces: 3
  • Garage Features: Garage - Front Entry
Interior Features
Interior Features
  • Interior Features: 2nd Kitchen, Attic, Bathroom - Soaking Tub, Bathroom - Walk-In Shower, Bathroom - Tub Shower, Breakfast Area, Carpet, Ceiling Fan(s), Curved Staircase, Dining Area, Entry Level Bedroom, Exposed Beams, Formal/Separate Dining Room, Floor Plan - Open, Kitchen - Gourmet, Kitchen - Island, Kitchenette, Pantry, Primary Bath(s), Recessed Lighting, Skylight(s), Stove - Wood, Upgraded Countertops, Walk-in Closet(s), Window Treatments, Wood Floors
  • Fireplace: Yes
  • Fireplaces Count: 2
  • Fireplace Features: Electric, Mantel(s), Wood
  • Appliances: Built-In Microwave, Dishwasher, Disposal, Dryer, Extra Refrigerator/Freezer, Exhaust Fan, Freezer, Humidifier, Icemaker, Oven - Double, Stainless Steel Appliances, Washer, Water Heater
  • Accessibility Features: None
  • Security Features: Security Gate, Smoke Detector
  • Door Features: Double Entry, French
  • Window Features: Screens, Skylights
  • Laundry Type: Main Floor
Exterior Features
Exterior Features
  • Spa: No
  • Exterior Features: Extensive Hardscape, Exterior Lighting, Stone Retaining Walls, Other
  • Outdoor Living Structures: Deck(s), Patio(s)
  • Pool: No Pool
Utilities
Utilities
  • Heating: Yes
  • Cooling Type: Central A/C
  • Cooling Fuel: Electric
  • Heating Type: Heat Pump(s)
  • Heating Fuel: Electric, Oil
  • Hot Water: Electric
  • Water Source: Well
  • Sewer Septic: Private Septic Tank
Confidential Data
Listing Office
  • List Agent AOR: Greater Capital Area Association of REALTORS
  • List Agent URL: www.carolynhomes.com

Property History for 12400 Triadelphia Road

DateEvent & SourcePriceAppreciation
Jan 15, 2026

Closed (Public Record)

Public Record #1927878558

$1,625,000
Jan 15, 2026

Closed

BRIGHT #MDHW2061938

$1,625,000
Dec 11, 2025

Pending

BRIGHT #MDHW2061938

DateEvent & SourcePrice
01/15/2026

Closed (Public Record)

Public Record #1927878558

$1,625,000
01/15/2026

Closed

BRIGHT #MDHW2061938

$1,625,000
12/11/2025

Pending

BRIGHT #MDHW2061938

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 12400 Triadelphia Road

Taxable ValueLand-Additions-Total-
Tax Record2025$21,649 ($1,804 / month)
Home Facts
Beds0Baths4.5Total Finished SqFt7,961 SqFtAbove Grade Finished SqFt7,961 SqFtStories2Lot Size345,431 SqFtStyleSingle Family ResidenceYear Built1993Year Renovated1993ZoningRRDEOCountyHOWARDAPN03-312968

Schools near 12400 Triadelphia Road

This home is within Howard County Public Schools.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - 6 to 8
Public - 9 to 12
Public - 6 to 12
Rating
School
Distance
Triadelphia Ridge Elementary School
PublicPK to 5

Folly Quarter Middle School
Public6 to 8

Glenelg High School
Public9 to 12

Homewood School
Public6 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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Nearby home values

AddressSold priceBedsBathsSqftLot (Sqft)
This home: 12400 Triadelphia Road, Ellicott City, MD 21042
$1,625,000
5
7,961
345,431
$725,000
4
5,358
175,547
$1,435,000
4
4,304
331,492
3.5
3,158
164,657
$825,000
5
4,800
48,787
$925,000
6
51,401

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of TTR Sotheby's International Realty

© 2026 Bright MLS. All rights reserved. All information is deemed reliable, but accuracy is not guaranteed. Listing information is from various brokers who participate in IDX and not all listings may be visible on the site. The property information being provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated on 01/16/2026 10:28 PM