12504 Triadelphia Rd, Ellicott City, MD 21042

Off market aug 2017 for $825K

$1,291,745

Est. refi paymentEst. refi $1,965/mo

•

4,800

sq ft

12504 Triadelphia Rd, Ellicott City, MD 21042

About this home

IMMEDIATE MOVE IN! Gorgeous 1+ Acre lot surrounded by trees in River Hill School district! Well thought out plan features FRESH PAINT, expansive first floor including a main level owners suite w/ sitting room, dining room, living room, library, open upscale kitchen with adjacent morning room, and dramatic two-story family room with fireplace. Expansive 1st floor Owner's retreat. SELLER MOTIVATED!

Single-familyProperty Type

2016Year Built

1.12 acresLot Size

$269Est. Price/Sq.Ft.

2 car garageParking

Listed by Bob Lucido • The KW Collective

•443-574-1600 (broker)

•broker@thekwcollective.com (broker)

Listed by Leslie Rosenthal • The KW Collective

•443-574-1600 (broker)

•broker@thekwcollective.com (broker)

Bought with Leslie Rosenthal • The KW Collective

•443-574-1600 (broker)

•broker@thekwcollective.com (broker)

Redfin checked: a few seconds ago

•Source:BRIGHT MLS #1000019748

Redfin Estimate

$1,291,745

$467K since sold in August 2017$15K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.6% lower than the average sale price ($1.34M) of 6 comparable homes.

SOLD AUG 18, 2026
$1,225,000
A
6 beds4.5 baths4,759 sq ft
11302 Judah Way, Marriottsville, MD 21104
SOLD JUL 27, 2026
$1,085,000
B
5 beds3.5 baths4,276 sq ft
12004 Margaret Ct, Marriottsville, MD 21104
SOLD JUN 10, 2026
$1,410,000
C
4 beds4.5 baths5,244 sq ft
12315 Fawn River Way, Ellicott City, MD 21042
SOLD JUN 25, 2026
$1,335,000
D
4 beds3.5 baths5,149 sq ft
12319 Fawn River Way, Ellicott City, MD 21042
SOLD SEP 22, 2026
$1,750,000
E
5 beds4.5 baths8,119 sq ft
13505 Mitchells Way, West Friendship, MD 21794
SOLD JUL 23, 2026
$1,235,000
F
5 beds4 baths4,584 sq ft
13109 Fox Path Ln, West Friendship, MD 21794

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Sell

$683,514

Est. take-home

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Est. cash available

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Rent

$5,659/mo

Redfin rental estimate

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Market trends in 21042, MD

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.6%

1.1% MoM

Median sale price

$850K

$12K MoM

Avg. days on market

27d

9 days MoM

Recently sold homes

153

14 MoM

New listings for sale

OPEN TODAY, 1PM TO 3PM
$1,400,000
4 beds4.5 baths5,757 sq ft
11705 Farside Rd, Ellicott City, MD 21042
(410) 531-0321
REDFIN OPEN SUN, 12PM TO 2PM
$585,000
3 beds2.5 baths2,322 sq ft
2993 Brookwood Rd, Ellicott City, MD 21042
COMING SOON
$1,085,000
4 beds3.5 baths3,645 sq ft
2913 Chainita Ct, Ellicott City, MD 21042
(410) 740-1200
OPEN TODAY, 2:15PM TO 4PM
$1,160,000
5 beds3 baths3,499 sq ft
12805 Folly Quarter Rd, Ellicott City, MD 21042
(301) 519-8100
OPEN TODAY, 11AM TO 1PM
$500,000
3 beds2 baths2,050 sq ft
4656 Hallowed Strm, Ellicott City, MD 21042
(410) 465-6900
OPEN TODAY, 1PM TO 3PM
$600,000
3 beds2.5 baths1,778 sq ft
10113 Century Dr, Ellicott City, MD 21042
(410) 465-6900
OPEN SUN, 1PM TO 3PM
$2,400,000
5 beds5.5 baths7,353 sq ft
10528 Pudding Ln, Ellicott City, MD 21042
(410) 823-0033
$1,050,000
7 beds6 baths6,384 sq ft
2915 Beaver Lake Ct, Ellicott City, MD 21042
(443) 336-5623
$800,000
5 beds4.5 baths3,660 sq ft
3438 Huntsmans Run, Ellicott City, MD 21042
(410) 730-3456
EARLY ACCESS
$799,000
4 beds3 baths3,444 sq ft
3713 Dorsey Search Cir, Ellicott City, MD 21042
See all

Provided by Redfin

Sale history for 12504 Triadelphia Rd

Date

Event

Price

MRIS #HW10020119

Aug 18, 2017

Sold

$825,000

$172/sq ft

Aug 10, 2017

Pending

—

Aug 1, 2017

Listed

$177/sq ft

+25

BRIGHT MLS #1000019748

Aug 18, 2017

Sold

$825,000

$172/sq ft

Aug 1, 2017

Listed

$849,900

$177/sq ft

BRIGHT MLS #1008301588

Aug 1, 2017

Listing Removed

—

Mar 16, 2017

Listed

$849,900

$177/sq ft

BRIGHT MLS #1008217086

Mar 16, 2017

Listing Removed

—

Jul 18, 2016

Listed

$869,900

$181/sq ft

BRIGHT MLS #1007136958

May 1, 2015

Listing Removed

—

Jan 29, 2015

Listed

$325,000

$68/sq ft

BRIGHT MLS #1007066716

Sep 10, 2014

Listing Removed

—

Apr 8, 2014

Listed

$899,900

$187/sq ft

Public Records

Jan 24, 2014

Sold

$302,000

$63/sq ft

BRIGHT MLS #1008836822

May 18, 2011

Listing Removed

—

May 20, 2009

Listed

$799,900

$167/sq ft

BRIGHT MLS #1008823632

May 20, 2009

Listing Removed

—

May 5, 2009

Listed

$975,000

$203/sq ft

BRIGHT MLS #1008703932

May 5, 2009

Listing Removed

—

Dec 5, 2008

Listed

$975,000

$203/sq ft

** Price available after signing in.

Year

Property tax

Land + Additions

Assessment*

2026

$13,829 (+4.8%)

2025

$13,192 (+4.9%)

2024

$12,581 (+4.2%)

2023

$12,073 (+3.3%)

$222,400 + $660,600

$883,000

2022

$11,685 (+2.7%)

2021

$11,378 (+0.4%)

2020

$11,337

$241,200 + $564,800

$806,000

2019

$11,337 (−1.4%)

$241,200 + $564,800

$806,000

2018

$11,497 (−12.5%)

$302,300 + $557,700

$860,000

2017

$13,140 (+260.5%)

2015

$3,645

$280,000

2014

$3,646 (−13.9%)

2013

$4,236 (+10.3%)

2012

$3,839

2011

$3,839 (−29.1%)

2010

$5,415

2009

Tax history for 12504 Triadelphia Rd

Year

Property tax

Land + Additions

Assessment*

2026

$13,829 (+4.8%)

2025

$13,192 (+4.9%)

2024

$12,581 (+4.2%)

2023

$12,073 (+3.3%)

$222,400 + $660,600

$883,000

2022

$11,685 (+2.7%)

2021

$11,378 (+0.4%)

2020

$11,337

$241,200 + $564,800

$806,000

2019

$11,337 (−1.4%)

$241,200 + $564,800

$806,000

2018

$11,497 (−12.5%)

$302,300 + $557,700

$860,000

2017

$13,140 (+260.5%)

2015

$3,645

$280,000

2014

$3,646 (−13.9%)

2013

$4,236 (+10.3%)

2012

$3,839

2011

$3,839 (−29.1%)

2010

$5,415

2009

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning

Beds

—

Baths

4.5

Stories

Lot width

—

Lot depth

—

Lot size

1.12 Acres

Year renovated

—

Sq. Ft.

4,658

Year built

2017

Style

Single Family Residential

County

Howard County

APN

03 352269

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 4, 2026.

RR-DEO

Rural Residential-Density Exchange Option Overlay District

The Rural Residential District is established to allow low density residential development within a rural environment. The Rural Residential District is intended for an area of the County which is already largely committed to low density residential subdivisions. Within the RR District, agriculture is permitted as well as residential development in both cluster and non-cluster forms. Cluster development is permitted in order to protect environmental and landscape resources and to preserve agricultural land.; The DEO Overlay District is established to provide land owners in the RC and RR Districts with opportunity and incentive to preserve significant blocks of farmland in the rural area of the county. This district is also intended to encourage the clustering of residential development in areas where the development will not have an adverse impact on farm operations. To accomplish this, the DEO District allows residential density in the RC and RR Districts to be exchanged between parcels. Density exchanges in the District should result in large parcels being preserved in perpetuity, while residential development is directed toward parcels which are able to absorb the additional dwellings.

Permitted uses

Include but are not limited to:

Agriculture
Housing-Single unit
Public service
Educational/school
Fire house
Recreation
Communications tower
Park & open space

Property details

Parking

Parking Information
# of Attached Garage Spaces: 2
Garage Features: Garage - Front Entry
# of Total Garage and Parking Spaces: 2
Has Garage
# of Garage Spaces: 2
Garage
Off Street, Attached Garage

Interior

Bedroom Information
# of Bedrooms On 1st Upper Level: 3
# of Bedrooms On Main Level: 1
# of Bedrooms On 1st Lower Level: 1

Bathroom Information
# of Bathrooms (Full) On 1st Upper Level: 2
# of Bathrooms (Half) On Main Level: 1
# of Bathrooms (Full) On Main Level: 1
# of Bathrooms (Full) On 1st Lower Level: 1
# of Bathrooms (Half): 1
# of Bathrooms (Full): 4

Interior Information
Appliances: Washer/Dryer Hookups Only, Cooktop, Dishwasher, Oven - Double, Oven - Wall, Microwave, Washer, Dryer
Door Features: Six Panel, Sliding Glass
Entry Location: Foyer
Interior Features: Kitchen - Gourmet, Breakfast Area, Kitchen - Island, Kitchen - Eat-In, Dining Area, Master Bath(s), Upgraded Countertops, Crown Moldings, Wood Floors, Recessed Lighting, Floor Plan - Open
Living Area Sq.Ft. Source: Estimated
Wall & Ceiling Types: 9'+ Ceilings, 2 Story Ceilings, Dry Wall, Tray Ceilings

Room Information
Living Room, Dining Room, Master Bedroom, Sitting Room, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Kitchen, Game Room, Foyer, Breakfast Room, Great Room, Mud Room

Fireplace Information
Has Fireplace
# of Fireplaces: 1
Fireplace - Glass Doors (N)

Basement Information
Basement: Yes
Outside Entrance, Sump Pump, Full, Space For Rooms, Rear Entrance, Walkout Level

Exterior

Property Information
Total Below Grade Sq. Ft.: 1400
Accessibility Features: Other
Irrigation Water Rights
Ownership Interest: Fee Simple
Property Condition: Very Good
Year Built Source: Estimated

Building Information
Construction Materials: Vinyl Siding, Combination, Stone
Other Structures: Above Grade, Below Grade
Roof: Shingle
Structure Type: Detached
Window Features: ENERGY STAR Qualified, Low-E, Double Pane, Bay/Bow

Property Green Features
Energy Efficient: Appliances

Lot Information
Tidal Water: No

Land Information
Land Assessed Value: $280,000

Above Grade Information
Finished Sq.Ft.: 3,400
Finished Sq.Ft. Source: Estimated

Below Grade Information
Finished Sq.Ft.: 1,400
Finished Sq.Ft. Source: Estimated

Financial

Tax Information
County Tax: $3,152.80
Tax Assessed Value: $280,000
Tax Year: 2016
Tax Annual Amount: $3,645.60

Assessments Information
Special Assessment Payment: Annually
Year Assessed: 2017

Utilities

Utilities Information
Central Air
Cooling Type: Central A/C, Programmable Thermostat
Cooling Fuel: Electric
Forced Air, Programmable Thermostat
Heating Fuel: Bottled Gas/Propane
Hot Water: 60+ Gallon Tank
Sewer Septic: Septic Exists
Water Source: Well

Location

Homeowners Association Information
HOA Fee: $75
HOA Fee Frequency: Monthly

School Information
Elementary School: TRIADELPHIA RIDGE
Middle Or Junior School: FOLLY QUARTER
High School: RIVER HILL
School District Name: HOWARD COUNTY PUBLIC SCHOOL SYSTEM

Location Information
Directions: Rt 144/Frederick Road to Triadelphia Road. Follow South 1.8 miles to home on right.

Public facts

Beds: —
Baths: 4.5
Sq. Ft.: 4,658
Stories: 2.0
Lot Size: 1.12 acres
Style: Single Family Residential
Year Built: 2017
Year Renovated: —
County: Howard County
APN: 03 352269

Home facts updated by county records on Sep 4, 2026

Around this home

Schools

K - 12
Preschool & daycare

Triadelphia Ridge Elementary School

Public PreK-5 • Assigned • 2.1mi

9/10

Folly Quarter Middle School

Public 6-8 • Assigned • 2.3mi

9/10

Glenelg High School

Public 9-12 • Assigned • 3.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 104° expected this year, 15 days in 30 years

4/10 Wind Factor

11% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Ellicott City, MD • 21042

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.2 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

9.2 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.23M – $1.49M

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Home values near 12504 Triadelphia Rd

Data from public records.

Address	Redfin Estimate
12430 Triadelphia Rd, Ellicott City, MD 4 Beds \| 3.5 Baths \| 5358 Sq. Ft.	$1,092,207
12510 Triadelphia Rd, Ellicott City, MD - Beds \| 2.5 Baths \| 4925 Sq. Ft.	$1,226,800
12410 Triadelphia Rd, Ellicott City, MD 4 Beds \| 4 Baths \| 4304 Sq. Ft.	$1,385,623
12475 Triadelphia Rd, Ellicott City, MD 5 Beds \| 5 Baths \| 3819 Sq. Ft.	$1,081,957
12500 Triadelphia Rd, Ellicott City, MD 5 Beds \| 3.5 Baths \| 4181 Sq. Ft.	$826,929
12268 Woodspurge Ct, Ellicott City, MD 4 Beds \| 3 Baths \| 4300 Sq. Ft.	$990,605
12264 Woodspurge Ct, Ellicott City, MD - Beds \| 2 Baths \| 3130 Sq. Ft.	$770,360

Address	Redfin Estimate
12530 Triadelphia Rd, Ellicott City, MD 5 Beds \| 3 Baths \| 301 Sq. Ft.	$921,241
12506 Triadelphia Rd, Ellicott City, MD 6 Beds \| 5 Baths \| 4311 Sq. Ft.	$1,317,442
12400 Triadelphia Rd, Ellicott City, MD 5 Beds \| 5.5 Baths \| 7961 Sq. Ft.	$1,689,467
12465 Triadelphia Rd, Ellicott City, MD - Beds \| 3.5 Baths \| 3056 Sq. Ft.	$1,035,777
12495 Triadelphia Rd, Ellicott City, MD 4 Beds \| 5.5 Baths \| 4433 Sq. Ft.	$1,364,895
3421 Blackberry Ln, Ellicott City, MD - Beds \| 2.5 Baths \| 2669 Sq. Ft.	$826,525
12275 Carroll Mill Rd, Ellicott City, MD - Beds \| 3 Baths \| 3128 Sq. Ft.	$844,983

Address	Redfin Estimate
12520 Triadelphia Rd, Ellicott City, MD - Beds \| 2.5 Baths \| 3378 Sq. Ft.	$922,696
12420 Triadelphia Rd, Ellicott City, MD - Beds \| 3.5 Baths \| 6352 Sq. Ft.	$1,277,961
12485 Triadelphia Rd, Ellicott City, MD - Beds \| 3.5 Baths \| 4320 Sq. Ft.	$1,182,962
12502 Triadelphia Rd, Ellicott City, MD 6 Beds \| 5.5 Baths \| 5782 Sq. Ft.	$1,313,221
12260 Woodspurge Ct, Ellicott City, MD 4 Beds \| 2.5 Baths \| 2482 Sq. Ft.	$814,064
3411 Blackberry Ln, Ellicott City, MD - Beds \| 2.5 Baths \| 2288 Sq. Ft.	$817,908
12285 Carroll Mill Rd, Ellicott City, MD - Beds \| 3.5 Baths \| 3158 Sq. Ft.	$864,791

Property information provided by BRIGHT MLS when last listed in 2017. This data may not match . Learn more.

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