OPEN SAT, 11AM TO 2PM

For sale

$535,000

Est. $3,500/mo —

•

2,225

sq ft

509 Pythagoras Path, Middletown, DE 19709

About this home

Welcome to 509 Pythagoras Path, a beautifully maintained 4-bedroom, 2.5-bath home in the sought-after Bayberry community and Appoquinimink School District. Offering approximately 2,225 square feet, this home features a spacious, functional floor plan with plenty of room for everyday living and entertaining. Situated on a . 24-acre homesite, this home offers the perfect combination of space, comfort and a fantastic Middletown location. The sellers have invested over $30,000 in improvements and upgrades within the last five years, including Lifeproof flooring throughout the first floor and stairs (2023), bedroom carpeting (2023 & 2025), playroom lighting (2024), furnace (2024), air conditioner (2024), hot water heater with mixing valve for extended hot water (2024), whole-house surge protector (2025), refrigerator (2022), dishwasher (2024), and washer (2025). With so many major updates already completed, you can simply move in and start enjoying everything this wonderful home and community have to offer. This home is a must-see—schedule your showing before it’s gone!

Single-familyProperty Type

2012Year Built

10,454 sq ftLot Size

$240Price/Sq.Ft.

$58/moHOA Dues

2 car garageParking

Listed by Diane Salvatore • Patterson-Schwartz-Hockessin

•302-239-3000 (broker)

•ssedita@psre.com (broker)

Listed by Shana Delcollo • Patterson-Schwartz-Hockessin

•302-239-3000 (broker)

•ssedita@psre.com (broker)

Listing updated: Oct 9, 2026 at 03:10am

Redfin checked: a few seconds ago

•Source:BRIGHT MLS #DENC2112620

Payment calculator

$3,500 per month

Principal and interest$2,993

Property taxes

HOA dues

Home insurance

Utilities

5 minutes to get started. No credit impact.

Affordability tools

See this home in person

Open houses

Saturday, Oct 10

11:00am - 2:00pm

Sunday, Oct 11

1:00pm - 3:00pm

Nearby open houses (10)

OPEN TODAY, 11AM TO 4PM
$769,000
4 beds3.5 baths3,819 sq ft
426 Crownleaf Dr, Middletown, DE 19709
OPEN TODAY, 11AM TO 4PM
$862,000
4 beds4.5 baths3,461 sq ft
424 Crownleaf Dr, Middletown, DE 19709
(856) 424-3339
OPEN SAT, 11AM TO 2PM
$600,000
4 beds2.5 baths3,306 sq ft
219 Oakwood Pl, Middletown, DE 19709
(302) 234-1888
OPEN SAT, 12PM TO 3PM
$563,000
4 beds2.5 baths3,175 sq ft
31 E Moyer Dr, Bear, DE 19701
(302) 239-3000
OPEN SAT, 12PM TO 2PM3D WALKTHROUGH
$625,000
4 beds2.5 baths3,575 sq ft
122 W Harvest Dr, New Castle, DE 19720
(302) 355-2335
OPEN SAT, 12PM TO 3PM
$749,900
5 beds3.5 baths3,939 sq ft
69 Kirkcaldy Ln, Middletown, DE 19709
(302) 285-5100
OPEN SAT, 1PM TO 3PM
$684,900
5 beds3.5 baths4,158 sq ft
122 Hannum Dr, Bear, DE 19701
(610) 616-0012
OPEN SUN, 1PM TO 3PM
$369,900
3 beds2.5 baths1,750 sq ft
11 Carper St, Bear, DE 19701
(302) 999-9999
OPEN SUN, 1PM TO 3PM
$554,345
4 beds2.5 baths3,492 sq ft
447 Preakness Run, Newark, DE 19702
(302) 733-7000
OPEN SUN, 1PM TO 4PM3D WALKTHROUGH
$699,900
4 beds4 baths5,550 sq ft
1007 Applecross Dr, Middletown, DE 19709
(302) 475-0800

Around this home

Schools

K - 12
Preschool & daycare

Cedar Lane Early Childhood Center

Public K • Assigned • 1.3mi

Waters (Alfred G.) Middle School

Public 6-8 • Assigned • 1.3mi

8/10

Middletown High School

Public 9-12 • Assigned • 4.2mi

9/10

Provided by GreatSchools

About Village of Bayberry

North

Village of Bayberry North, located between Bayberry Parkway and Route 1, is a residential and master-planned Middletown neighborhood with curving sidewalks and pocket greens. The neighborhood’s character concentrates around Bayberry Town Center on Bayberry Parkway, where storefronts, patios, and a steady rhythm of errands shape the daily scene. Streetscapes lean contemporary, with tidy setbacks, front-facing garages, and small landscaped commons that frame evening walks. Nearby Silver Lake Park adds a natural counterpoint with water views and open lawns. Middletown Main Street’s independent dining and coffee culture sits a short drive away for a change of pace.

Provided by Walk Score and Local Logic

Offer insights

509 Pythagoras Path · $535,000

Strong offer

$543K and above

75% chance or better to win

Why $543K+ is a strong offer

DAYS ON MARKET

The average home goes pending in 35 days.

SALE-TO-LIST

Most homes are selling 1% below list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Interior features
Full basement

Bedrooms
4 bedrooms on the upper level

Bathrooms
2 full bathrooms and 1 half bathroom

Heating & cooling
Forced-air heating with natural gas
Central air conditioning with electric cooling

Sale and tax history for 509 Pythagoras Path

Sale History
Tax History

Year

Property tax

Land + Additions

Assessment*

2025

$4,157 (+8.8%)

$89,800 + $403,700

$493,500

2024

$3,821 (+17.7%)

$89,800 + $403,700

$493,500

2023

$3,247 (−0.7%)

$11,700 + $79,600

$91,300

2022

$3,270 (+1.2%)

$11,700 + $79,600

$91,300

2021

$3,230 (+1.2%)

$11,700 + $79,600

$91,300

2020

$3,193 (+8.0%)

$11,700 + $79,600

$91,300

2019

$2,957 (+3.9%)

$11,700 + $79,600

$91,300

2018

$2,846 (+4.4%)

$11,700 + $79,600

$91,300

2017

$2,725 (+9.4%)

$11,700 + $79,600

$91,300

2016

$2,490 (+2.9%)

$11,700 + $79,600

$91,300

2015

$2,421 (+0.2%)

$11,700 + $79,600

$91,300

2014

$2,416 (+0.7%)

$11,700 + $79,600

$91,300

2013

$2,400

$11,700 + $79,600

$91,300

Public record

Public record
Zoning

Beds

Baths

2.5

Stories

Lot width

—

Lot depth

—

Lot size

10,454 Sq. Ft.

Year renovated

—

Finished Sq. Ft.

2,225

Unfinished Sq. Ft.

—

Total Sq. Ft.

2,225

Year built

2012

Style

Single Family Residential

County

New Castle County

APN

1301321166

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 18, 2026.

Suburban District

This district permits a wide range of residential uses. This district includes all the newly developing areas designated as growth areas in the Comprehensive Development Plan.; This district permits moderate to high density development and a full range of residential uses in a manner consistent with providing a high quality suburban character. Significant areas of open space and/or landscaping shall be provided to maintain the balance between green space and buildings that characterize suburban character. The highest densities are permitted in designed communities, hamlets and villages through the use of Smart Code techniques.; This district is not intended to be used for fully developed areas. Fully developed areas are zoned Neighborhood Conservation (NC). The Suburban District is used for in-fill tracts containing at least 5 acres or where New Castle County seeks to redevelop the area to suburban character.

Permitted uses

Include but are not limited to:

Agriculture
Housing-Group
Housing-Single unit

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

8/10 Heat Factor

7 days above 102° 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

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

Provided by First Street

Historical weather

Middletown, DE • 19709

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 9.1 hours in June and 4.5 hours in December, placing it below the U.S. average for solar exposure.

9.1 hrs

4.5 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 509 Pythagoras Path

$533,211

$1,789 under list price of $535K

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $510K to $600K.

SOLD JUL 15, 2026
$535,000 Last sold price
4 beds2.5 baths2,250 sq ft
510 Vessel Dr, Middletown, DE 19709
$2/sq ft
smaller lot
11 years newer
SOLD NOV 21, 2025
$562,000 Last sold price
4 beds2.5 baths2,225 sq ft
420 Cicero Xing, Middletown, DE 19709
$13/sq ft
larger lot
SOLD AUG 28, 2026
$560,000 Last sold price
4 beds2.5 baths2,250 sq ft
310 W Bradford Ct, Middletown, DE 19709
$9/sq ft
larger lot
17 years older
SOLD MAY 29, 2026
$565,000 Last sold price
4 beds3 baths2,995 sq ft
215 N Bayberry Pkwy, Middletown, DE 19709
$51/sq ft
smaller lot
6 years newer
SOLD JUN 25, 2026
$510,000 Last sold price
4 beds2.5 baths2,124 sq ft
310 Great Oak Dr, Middletown, DE 19709
larger lot
34 years older
no basement
SOLD AUG 21, 2026
$600,000 Last sold price
4 beds2.5 baths2,500 sq ft
738 Angelou Ave, Middletown, DE 19709
9 years newer

Rental earnings

Est. $3,102 per month, based on comparable rentals

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Make a winning offer with the help of a local agent

Ask a question

(302) 262-5644

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Details provided by BRIGHT MLS and may not match the public record. Learn more.

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