Google street view image for 21 Paper Mill Rd, Newtown Square, PA 19073

Off Market Dec 1989 for $370K

$1,226,394

Est. refi paymentEst. refi $2,286/mo

•

3.5 ba

•

2,706

sq ft

21 Paper Mill Rd, Newtown Square, PA 19073

About this home

21 Paper Mill Rd is a 2,706 square foot house on a 0.9 acre lot with 5 bedrooms and 3.5 bathrooms. - it last sold on December 04, 1989 for $370,000. Based on Redfin's Newtown Square data, we estimate the home's value is $1,226,394.

Single-familyProperty Type

1954Year Built

0.9 acresLot Size

$453Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,226,394

$856K since sold in December 1989$131K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.1% higher than the average sale price ($1.13M) of 5 comparable homes.

SOLD BY REDFIN JUL 30, 2026
$955,000
A
5 beds3.5 baths3,569 sq ft
3503 St Davids Rd, Newtown Square, PA 19073
SOLD AUG 27, 2026
$1,200,000
B
4 beds3.5 baths3,496 sq ft
5 Martins Cir, Newtown Square, PA 19073
SOLD MAR 26, 2026
$745,000
C
5 beds3.5 baths2,370 sq ft
600 Waynesfield Dr, Newtown Sq, PA 19073
SOLD JUL 10, 2026
$1,400,000
D
4 beds3.5 baths2,828 sq ft
311 Oak Hill Ln, Newtown Square, PA 19073
SOLD NOV 20, 2025
$1,370,000
E
5 beds3.5 baths3,337 sq ft
650 Sawmill Rd, Newtown Square, PA 19073

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$1,153,914

Est. take-home

List your home with Redfin and save $12,264

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$1,887/mo

Redfin rental estimate

List your home for rent

Market trends in 19073, PA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.4%

+0.1% MoM

Median sale price

$950K

$116K MoM

Avg. days on market

28d

14 days MoM

Recently sold homes

1 MoM

New listings for sale

$900,000
5 beds2.5 baths3,673 sq ft
168 Mansion Rd, Newtown Square, PA 19073
(610) 520-0100
EARLY ACCESS
$385,000
2 beds2 baths1,380 sq ft
1110 Pritchard Pl, Newtown Square, PA 19073
EARLY ACCESS
$625,000
3 beds2 baths1,762 sq ft
3558 Sawmill Rd, Newtown Square, PA 19073
COMING SOON
$1,200,000
7 beds6 baths4,454 sq ft
3554-3556 Woodcrest Ave, Newtown Square, PA 19073
(610) 489-2100
VIDEO TOUR
$2,950,000
6 beds8.5 baths10,407 sq ft
1004 Brick House Farm Ln, Newtown Square, PA 19073
(888) 397-7352
$749,900
4 beds2.5 baths2,300 sq ft
11 Northwood Rd, Newtown Square, PA 19073
(855) 450-0442
EARLY ACCESS
$1,175,000
3 beds4 baths2,500 sq ft
359 Horseshoe Trl, Newtown Square, PA 19073
COMING SOON
$3,150,000
5 beds7 baths8,500 sq ft
72 Farrier Ln, Newtown Square, PA 19073
(610) 947-0408
$1,100,000
3 beds3.5 baths5,464 sq ft
3744 School Ln, Newtown Square, PA 19073
(610) 886-0200
OPEN SAT, 12PM TO 2PM
$1,350,000
4 beds3 baths3,452 sq ft
3303 Greene Countrie Dr, Newtown Square, PA 19073
(610) 651-2700
See all

Provided by Redfin

Sale history for 21 Paper Mill Rd

Year

Property tax

Land + Additions

Assessment*

2026

$9,553 (+7.5%)

$218,110 + $278,170

$496,280

2025

$8,888 (+7.6%)

$218,110 + $278,170

$496,280

2024

$8,259 (+3.3%)

$218,110 + $278,170

$496,280

2023

$7,998 (+2.2%)

$218,110 + $278,170

$496,280

2022

$7,823 (−34.6%)

$218,110 + $278,170

$496,280

2021

$11,960 (+54.2%)

$218,110 + $278,170

$496,280

2020

$7,756 (+1.6%)

$105,750 + $177,000

$282,750

2019

$7,633 (+1.1%)

$105,750 + $177,000

$282,750

2018

$7,550 (+0.3%)

2017

$7,524 (+1.7%)

2015

$7,398 (+0.3%)

2014

$7,374 (+2.4%)

2013

$7,200 (+2.2%)

2011

$7,041 (+10.1%)

2010

$6,394

Tax history for 21 Paper Mill Rd

Year

Property tax

Land + Additions

Assessment*

2026

$9,553 (+7.5%)

$218,110 + $278,170

$496,280

2025

$8,888 (+7.6%)

$218,110 + $278,170

$496,280

2024

$8,259 (+3.3%)

$218,110 + $278,170

$496,280

2023

$7,998 (+2.2%)

$218,110 + $278,170

$496,280

2022

$7,823 (−34.6%)

$218,110 + $278,170

$496,280

2021

$11,960 (+54.2%)

$218,110 + $278,170

$496,280

2020

$7,756 (+1.6%)

$105,750 + $177,000

$282,750

2019

$7,633 (+1.1%)

$105,750 + $177,000

$282,750

2018

$7,550 (+0.3%)

2017

$7,524 (+1.7%)

2015

$7,398 (+0.3%)

2014

$7,374 (+2.4%)

2013

$7,200 (+2.2%)

2011

$7,041 (+10.1%)

2010

$6,394

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

Property details

Interior

Basement Information
Basement Type: Full

Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Central

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Room Information
# of Rooms: 9

Exterior

Exterior Information
Building Style Type: Split Level
Exterior Wall: Frame/Masonry

Property Information
Subdivision Name: PROPERTY/EST/JOHN A BROWN JR
Living Sq. Ft: 2,706
# of Units: 1
# of Stories: 1
Legal Description: 1 1/2STY HSE GAR 1.137 ACRES

Parking & Garage Information
Parking Type: On and Off Street

Lot Information
# of Buildings: 1
Land Sq. Ft: 39,378
Legal Lot Number: 32
Municipality Name: NEWTOWN TOWNSHIP
Acres: 0.904
County Use Description: RESIDENTIAL

Utility Information
Sewer Type: Septic
Water Service Type: Public
Utility Type: Public Water

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 5
Baths: 3.5
Sq. Ft.: 2,706
Stories: 1.0
Lot Size: 0.9 acres
Style: Single Family Residential
Year Built: 1954
Year Renovated: —
County: Delaware County
APN: 30000195500

Home facts updated by county records on Aug 19, 2026

Around this home

Schools

Culbertson Elementary School

Public K-5 • Assigned • 1.3mi

6/10

Paxon Hollow Middle School

Public 6-8 • Assigned • 4.5mi

7/10

Marple Newtown Senior High School

Public 9-12 • Assigned • 2.4mi

9/10

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

5/10 Heat Factor

7 days above 101° expected this year, 15 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

3/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Newtown Square, PA • 19073

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 8.9 hours in June and 4.2 hours in December, placing it below the U.S. average for solar exposure.

8.9 hrs

4.2 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.17M – $1.41M

Reach more buyers when you sell with Redfin. Save up to $12,264 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

NEW CONSTRUCTION

$1,675,000

5 beds4 baths4,091 sq ft

3609 Gradyville Rd, Newtown Square, PA 19073

(610) 651-2700

$1,249,000

3 beds3.5 baths2,408 sq ft

522 Sproul Rd, Villanova, PA 19085

(610) 649-4500

$1,199,000

5 beds6.5 baths5,645 sq ft

34 1/2 Mary Jane Ln, Newtown Square, PA 19073

(717) 394-7283

$3,100,000

5 beds6 baths4,800 sq ft

1105 Waterloo Rd, Berwyn, PA 19312

(610) 649-4500

3D WALKTHROUGH

$1,100,000

4 beds3.5 baths3,667 sq ft

905 Newtown Rd, Devon, PA 19333

(484) 498-4000

$749,900

4 beds2.5 baths2,300 sq ft

11 Northwood Rd, Newtown Square, PA 19073

(855) 450-0442

New listings for sale in 19073

$900,000

5 beds2.5 baths3,673 sq ft

168 Mansion Rd, Newtown Square, PA 19073

(610) 520-0100

EARLY ACCESSCOMPASS COMING SOON

$385,000

2 beds2 baths1,380 sq ft

1110 Pritchard Pl, Newtown Square, PA 19073

EARLY ACCESSCOMPASS COMING SOON

$625,000

3 beds2 baths1,762 sq ft

3558 Sawmill Rd, Newtown Square, PA 19073

COMING SOON

$1,200,000

7 beds6 baths4,454 sq ft

3554-3556 Woodcrest Ave, Newtown Square, PA 19073

(610) 489-2100

VIDEO TOUR

$2,950,000

6 beds8.5 baths10,407 sq ft

1004 Brick House Farm Ln, Newtown Square, PA 19073

(888) 397-7352

$749,900

4 beds2.5 baths2,300 sq ft

11 Northwood Rd, Newtown Square, PA 19073

(855) 450-0442

EARLY ACCESSCOMPASS COMING SOON

$1,175,000

3 beds4 baths2,500 sq ft

359 Horseshoe Trl, Newtown Square, PA 19073

COMING SOON

$3,150,000

5 beds7 baths8,500 sq ft

72 Farrier Ln, Newtown Square, PA 19073

(610) 947-0408

$1,100,000

3 beds3.5 baths5,464 sq ft

3744 School Ln, Newtown Square, PA 19073

(610) 886-0200

Home values near 21 Paper Mill Rd

Data from public records.

Address	Redfin Estimate
9 Paper Mill Road, Newtown Square, PA 4 Beds \| 2.5 Baths \| 3004 Sq. Ft.	$938,926
23 Paper Mill Road, Newtown Square, PA 3 Beds \| 2.5 Baths \| 2618 Sq. Ft.	$838,736

Address	Redfin Estimate
0 Paper Mill Road, Newtown Square, PA 4 Beds \| 2.5 Baths \| 2324 Sq. Ft.	$686,361
19 Paper Mill Road, Newtown Square, PA 4 Beds \| 2.5 Baths \| 2959 Sq. Ft.	$1,406,767

Address	Redfin Estimate
25 Paper Mill Road, Newtown Square, PA 3 Beds \| 3.5 Baths \| 3719 Sq. Ft.	$918,456
17 Paper Mill Road, Newtown Square, PA 4 Beds \| 2.5 Baths \| 2634 Sq. Ft.	$1,026,142

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

Houses for rent in Delaware County	Agents near me	Bethlehem, PA homes for sale	Delaware County Housing Market
Houses for sale near me	Philadelphia, PA homes for sale	Allentown, PA homes for sale
Land for sale near me	Pittsburgh, PA homes for sale	Media, PA homes for sale
Open Houses near me	West Chester, PA homes for sale	Delaware County Property Records
Condos for sale near me	Lancaster, PA homes for sale	PA New Listings

Bucks County homes for sale
Montgomery County homes for sale
Chester County homes for sale

Malvern homes for sale
Media homes for sale
Philadelphia homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 19073, PA

Sale history for 21 Paper Mill Rd

Tax history for 21 Paper Mill Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 19073

Home values near 21 Paper Mill Rd

More real estate resources