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William F Sladek

William F Sladek
Real Estate Agent (Salesperson)
Wilmington DE

Salesperson (DE: RS-0017340)

21 years experience

REALTOR® 8 Active Listings Serves New Castle County, DE
View on Realtor.com

Contact Information

Brokerage
Redfin Corporation

Office Website
Office Address
31c Trolley Sq
Wilmington, DE  19806
(New Castle County)
Office Phone
484-962-0034
Office Fax
302-655-8031
Mobile
302-494-8100
Email
b***@**********.com
Show Email for $5

Service Areas

Bear: DE St. Georges: DE Glasgow: DE Kirkwood: DE Christiana: DE North Star: DE Hockessin: DE Pike Creek: DE Middletown: DE Townsend: DE Marshallton: DE Pike Creek Valley: DE Dover: DE Dover Base Housing: DE Cheswold: DE Highland Acres: DE Leipsic: DE Little Creek: DE Kent Acres: DE Rising Sun-Lebanon: DE South Bethany: DE Bethany Beach: DE Woodside East: DE Felton: DE Woodside: DE Riverview: DE Fenwick Isle: DE Fenwick Island: DE Rehoboth Beach: DE Lewes: DE Nassau: DE Magnolia: DE Milford: DE Slaughter Beach: DE Bowers: DE Millsboro: DE Long Neck: DE Millville: DE Clarksville: DE Ocean View: DE Dewey Beach: DE Henlopen Acres: DE Smyrna: DE Clayton: DE Newark: DE Wilmington: DE

About William Sladek

William is a licensed real estate agent in Delaware, bringing over eight years of experience as a loan officer to the table. A resident of Delaware since 1998, [he/she/they] holds a degree in Finance with a minor in Civil Engineering, equipping [him/her/them] with a unique perspective on home financing and market dynamics. William is dedicated to guiding clients through the process of finding their ideal home, leveraging extensive knowledge of local housing markets to ensure informed decisions.

With a background in military relocation, William has a deep understanding of the needs of service members and their families. [His/Her/Their] tenure at USAA Savings Bank involved assisting thousands of military personnel with VA loans, FHA loans, and first-time homebuyer programs. For those seeking properties near Dover Air Force Base or other military installations, [he/she/they] is well-prepared to provide expert assistance.

William offers complimentary buyer's agent services, ensuring that clients face no hidden fees or obligations. Specializing in new construction homes, [he/she/they] maintains a comprehensive database of every new development in Delaware, including quick delivery homes, builder model homes, and to-be-built options. This resource allows clients to save time and money by avoiding unnecessary property viewings.

As a member of the Delaware Home Builder's Association, William has established strong connections with major builders and developers throughout the state. This network provides clients with valuable insights into hidden costs, lease options, and custom solutions, including potential modifications to floor plans. [He/She/They] also offers ongoing support throughout the construction process, ensuring that any issues are addressed promptly and that clients are well-informed until move-in day.

For a dedicated real estate partner who combines financial expertise with local market knowledge, William is ready to assist you in your home-buying journey.

New Castle County, DE Real Estate Market Analysis (Single Family Homes)

$586,329
Avg. Listing Price
From William's portfolio
3.7 / 2.7
Avg. Beds/Baths
Typical property size
2,442 sf
Avg. Square Footage
Interior living space
928
Active Listings
Current inventory

New Castle County represents Delaware's economic powerhouse and most dynamic real estate market, encompassing Wilmington, Newark, and numerous suburban communities that serve both local residents and professionals commuting to nearby Philadelphia and Baltimore. The county's unique position within the Northeast Corridor creates a complex tapestry of residential neighborhoods, from historic Wilmington brownstones to modern developments in Bear and Middletown, each serving distinct buyer demographics and price points.

With 3,028 total actively licensed agents operating throughout the county, the market demonstrates remarkable depth and specialization across its diverse communities. What makes this agent network particularly valuable is that all 3,028 agents maintain current email contact information, reflecting the tech-forward approach that characterizes Delaware's business-friendly environment and the professional standards expected in this competitive market.

Major New Castle County, Delaware Real Estate Markets

Wilmington anchors the county as Delaware's largest city, where real estate activity ranges from luxury riverfront condominiums to revitalized downtown lofts attracting young professionals drawn by the city's corporate headquarters and cultural amenities. The surrounding suburbs of Pike Creek, Hockessin, and Greenville represent some of the most affluent markets in the region, with agents specializing in executive relocations and high-end family properties that often exceed $800,000.

Newark's market revolves heavily around the University of Delaware, creating unique opportunities in student housing, faculty residences, and investment properties, while rapidly growing areas like Middletown and Bear have emerged as major family destinations due to their newer construction, excellent schools, and convenient access to major highways connecting to Philadelphia and Washington D.C. markets.

Market Dynamics and Geographic Complexity

New Castle County's real estate landscape operates on multiple levels simultaneously, with coastal influence from nearby Delaware Bay, suburban expansion pressure from Philadelphia's metropolitan growth, and the stabilizing presence of major corporations including DuPont, JPMorgan Chase, and Bank of America. This creates micro-markets where agents must understand everything from flood zone regulations in Claymont to luxury estate protocols in Centreville.

The county's surprising diversity extends from dense urban blocks in Wilmington's East Side to sprawling horse properties in Hockessin, requiring agents to master dramatically different specializations often within a 20-mile radius. This geographic complexity means successful real estate professionals here develop deep expertise in specific neighborhoods while maintaining broad knowledge of county-wide trends, corporate relocations, and seasonal patterns driven by both university cycles and corporate fiscal calendars.

Why Businesses Need New Castle County, Delaware Agent Contact Data

Financial services companies, mortgage lenders, and insurance providers find New Castle County's agent network particularly valuable due to the high volume of executive relocations and the sophisticated clientele requiring complex financing solutions and premium service levels. The complete email accessibility of all 3,028 licensed agents enables targeted campaigns for luxury property insurance, jumbo mortgages, and corporate relocation services that match the county's upscale market demands.

Home service providers, from high-end contractors to landscaping companies, leverage this agent database to connect with professionals handling properties where clients expect premium quality and are willing to invest accordingly. The agents' digital connectivity facilitates rapid communication about time-sensitive opportunities, whether coordinating pre-listing home improvements or connecting new residents with trusted service providers in their specific communities.

Current Property Listings

As of 2/17/2026, William Sladek has 8 properties for sale in Wilmington and surrounding areas.

$520,000

Listed 2025-08-12

66 Mischief Ln
Smyrna, DE  19977

Beds: 4.0
Baths: 2.5
Sq Ft: 2,246
Lot: 16,553 sf
Single Family Map
View Full Details

$525,000

Listed 2026-02-13

31 Wavyleaf Dr
Smyrna, DE  19977

Beds: 3.0
Baths: 3.0
Sq Ft: 3,303
Lot: 10,019 sf
Single Family Map
View Full Details

$325,000

Listed 2026-01-13

361 Kesselring Ave
Dover, DE  19904

Beds: 3.0
Baths: 1.5
Sq Ft: 2,088
Lot: 8,276 sf
Single Family Map
View Full Details

$179,000

Listed 2025-07-07

1905 W Second St
Wilmington, DE  19805

Beds: 3.0
Baths: 1.0
Sq Ft: 1,275
Lot: 1,742 sf
Townhomes Map
View Full Details

$289,900

Listed 2025-12-27

1303 Newport Gap Pike
Wilmington, DE  19804

Beds: 4.0
Baths: 2.0
Sq Ft: 1,275
Lot: 5,227 sf
Single Family Map
View Full Details

$650,000

Listed 2025-12-22

312 Galloway St
Middletown, DE  19709

Beds: 4.0
Baths: 2.5
Sq Ft: 4,475
Lot: 22,216 sf
Single Family Map
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$425,000

Listed 2026-01-20

103 Anglin Dr
Newark, DE  19713

Beds: 3.0
Baths: 1.5
Sq Ft: 2,150
Lot: 7,841 sf
Single Family Map
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$265,000

Listed 2025-10-03

356 Tribbitt St
Dover, DE  19904

Beds: 3.0
Baths: 2.5
Sq Ft: 1,872
Lot: 2,178 sf
Townhomes Map
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$279,900

Listed 2025-11-13

225 N New St
Dover, DE  19904

Beds: 4.0
Baths: 1.5
Sq Ft: 1,968
Lot: 5,663 sf
Townhomes Map
View Full Details

Current Property Rentals

William Sladek currently has no rental properties available in Wilmington and surrounding areas. Check back later.