Jason Ontjes

Wilmington DE

Century 21 Emerald

54 Closed Sales

$19.8M Total Value

$173K - $1.3M Price Range

$366.7K Average Price

Prior 5 years

About Jason

I’m a trusted, results-driven real estate agent with Century 21 Emerald, serving buyers and sellers throughout New Castle County, Chester County, and Delaware County. I specialize in residential real estate, including first-time buyers, relocation, investment properties, and senior transitions.
As a 5-year consecutive Quality Service Award recipient and certified Senior Real Estate Specialist (SRES), I deliver consistent communication, strong negotiation, and client-focused service from start to finish. I use proven digital marketing strategies and local market expertise to help sellers maximize exposure and buyers secure the right home in competitive conditions.
If you want an agent who listens, understands the local market, and knows how to position your home for success online and in the market, I’m here to help. Contact me today to discuss your real estate goals in Delaware or Southeastern Pennsylvania.

Home Types: House, Townhouse, Manufactured, Condo

Years of Experience: 6

Education: Masters of Divinity

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$2,573,900

Average Sale Price

$285,989

Price Range

$130K - $550K

Buyer Deals

Total Deals

Total Value

$3,685,950

Average Sale Price

$368,595

Price Range

$147K - $890K

1 Year View by Quarter

Seller Deals

Total Deals

Total Value

$3,744,900

Average Sale Price

$312,075

Price Range

$130K - $550K

Buyer Deals

Total Deals

Total Value

$7,540,675

Average Sale Price

$443,569

Price Range

$147K - $1.3M

2 Year View by Quarter

Seller Deals

Total Deals

Total Value

$6,072,725

Average Sale Price

$303,636

Price Range

$105K - $555K

Buyer Deals

Total Deals

Total Value

$13,730,475

Average Sale Price

$403,838

Price Range

$147K - $1.3M

5 Year View

Neighborhoods Jason is Experienced In

Jason's Active Listings

$489,900
- 3 Beds
- 1.5 Baths
- 1,700 Sq Ft
400 Lee Terrace

Wilmington, DE
Welcome to 400 Lee Terrace in Wilmington, Delaware, beautifully renovated and move-in ready, offering modern upgrades and a prime location. This fully updated 3-bedroom home has been completely redone from top to bottom, featuring a brand-new roof, new vinyl siding, new windows, a new driveway, and new landscaping being installed this week for exceptional curb appeal and long-term peace of

Jason Ontjes Century 21 Emerald

Co-Listing Agent

$249,900
- Studio
- 1,600 Sq Ft
2114 Seneca Rd

Wilmington, DE
Great opportunity to own a duplex in the well-performing Silverbrook Gardens neighborhood. Both units feature 2 bedrooms, 1 bathroom, living area, and efficiency kitchen, with updated bathrooms, flooring, and kitchens featuring granite countertops.Each unit has separate utilities, including heater, hot water heater, electric, and gas meters. The upstairs unit rents for $1,060/month and the

Jason Ontjes Century 21 Emerald

Recently Sold

$550,000 Sold Apr 3, 2026
- 4 Beds
- 2.5 Baths
- 2,575 Sq Ft
152 W Savannah Dr

Bear, DE
- 3% Below List
- $214/SF
- 54 Days On Market
- Current Est. Value $547K
Jason Ontjes Century 21 Emerald

$395,000 Sold Mar 30, 2026
- 3 Beds
- 2.5 Baths
- 1,450 Sq Ft
6 Harmony Ct

Newark, DE
- 1% Below List
- $272/SF
- 25 Days On Market
- Current Est. Value $394K
Jason Ontjes Century 21 Emerald

$363,000 Sold Mar 20, 2026
- 3 Beds
- 2.5 Baths
- 1,450 Sq Ft
3101 Opal Ct

Wilmington, DE
- 7% Above List
- $250/SF
- 2 Days On Market
- Current Est. Value $346K
Jason Ontjes Century 21 Emerald

$278,000 Sold Jul 18, 2025
- 3 Beds
- 2 Baths
- 1,893 Sq Ft
131 E Parkway Ave

Unit 120

Chester, PA
- $147/SF
- 2 Days On Market
- Current Est. Value $285K
Jason Ontjes Century 21 Emerald

$335,000 Sold Mar 28, 2025
- 2 Beds
- 2.5 Baths
- 1,875 Sq Ft
452 Brockton Dr

Middletown, DE
- $179/SF
- 25 Days On Market
- Current Est. Value $344K
Jason Ontjes Century 21 Emerald

$355,000 Sold Sep 6, 2024
- 4 Beds
- 2 Baths
- 1,950 Sq Ft
15 Eastwind Ct

Newark, DE
- $182/SF
- 5 Days On Market
- Current Est. Value $346K
Jason Ontjes Century 21 Emerald

$481,000 Sold Apr 25, 2024
- 3 Beds
- 2.5 Baths
- 1,525 Sq Ft
1234 Evergreen Rd

Wilmington, DE
- $315/SF
- 0 Days On Market
- Current Est. Value $479K
Jason Ontjes Century 21 Emerald

$260,000 Sold Mar 12, 2024
- 3 Beds
- 1.5 Baths
- 1,188 Sq Ft
714 Dean St

Ridley Park, PA
- $219/SF
- 3 Days On Market
- Current Est. Value $310K
Jason Ontjes Century 21 Emerald

$555,000 Sold Aug 4, 2023
- 3 Beds
- 2 Baths
- 2,893 Sq Ft
3 Twin Pine Way

Glen Mills, PA
- 6% Above List
- $192/SF
- 6 Days On Market
- Current Est. Value $665K
Jason Ontjes Century 21 Emerald

Awards and Designations

SRES - SRES®, Seniors Real Estate Specialist

Other Experience

First Time Home Buyers, Investments, Luxury Homes, New Construction, Senior Communities

Agent License: Delaware #RS0036645 Pennsylvania #RS354280

Jason Ontjes

(610) 510-8532

Homes for Sale by City

Jason Ontjes

About Jason

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Jason is Experienced In

Jason's Listings and Deals

Jason's Active Listings

Recently Sold

Awards and Designations

Other Experience