Deborah Siefkin

Denton TX

Rightsize Realty Assoc, LLC

27 Closed Sales

$15.4M Total Value

$455K - $975K Price Range

$594K Average Price

Prior 5 years

About Deborah

Deb Siefkin is a real estate broker and founder of RightSize Realty Associates, serving Denton County, Texas.

She works with buyers and sellers who are navigating important transitions—relocating, downsizing, or moving into the next stage of life—and want to make a thoughtful decision, not just a quick one.

Deb is known for helping clients make sense of the market, understand their options, and move forward with clarity and confidence. Her approach is calm, structured, and focused on what actually matters in each decision.

She works across resale homes, new construction, and 55+ communities, and has a particular focus on lifestyle-driven moves within Denton County.

If you’re trying to figure out your next step, Deb offers straightforward guidance without pressure.

Home Types: House

Years of Experience: 17

Education: MS University of North TX - Applied Technology, Training and Developmnt, and BS University of Delaware - Individual and Family Services

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$2,425,000

Average Sale Price

$606,250

Price Range

$500K - $860K

Buyer Deals

Total Deals

Total Value

$535,000

Average Sale Price

$535,000

1 Year View by Quarter

Seller Deals

Total Deals

Total Value

$4,360,000

Average Sale Price

$545,000

Price Range

$340K - $860K

Buyer Deals

Total Deals

Total Value

$1,510,000

Average Sale Price

$755,000

Price Range

$535K - $975K

Seller Deals

Total Deals

Total Value

$9,650,000

Average Sale Price

$567,647

Price Range

$340K - $860K

Buyer Deals

Total Deals

Total Value

$5,794,000

Average Sale Price

$643,778

Price Range

$455K - $975K

5 Year View

Neighborhoods Deborah is Experienced In

Robson Ranch

24 Sales
Bedford

1 Sale
Southlake

1 Sale
Timber Creek

1 Sale

Deborah's Active Listings

$800,000
- 2 Beds
- 4 Baths
- 2,890 Sq Ft
11901 Southerland Dr

Denton, TX
Opportunities like this are rare in Robson Ranch. Positioned on a premium double fairway lot with sought-after south-facing rear exposure, this Highland floor plan offers sweeping golf course views, natural light throughout the day, and a level of flexibility difficult to find in the community. With approximately 2,700 square feet, the home is designed to live primarily on the main level. The

Deborah Siefkin Rightsize Realty Assoc, LLC

$500,000
- 5 Beds
- 3 Baths
- 2,747 Sq Ft
1836 Harrier Ln

Argyle, TX
Enjoy park views and one of the most functional floor plans in Harvest in this beautifully maintained 5-bedroom home zoned to Argyle ISD, located directly across from a greenbelt and just minutes from Argyle West Elementary. Designed for both everyday living and entertaining, the open-concept layout features two bedrooms on the main floor, including a private secondary bedroom ideal for guests,

Deborah Siefkin Rightsize Realty Assoc, LLC

Recently Sold

$860,000 Sold Jan 21, 2026

Last List Price
- 2 Beds
- 2.5 Baths
- 2,440 Sq Ft
8312 American Way

Denton, TX
- $352/SF
- 20 Days On Market
- Current Est. Value $836K
Deborah Siefkin Rightsize Realty Assoc, LLC

$545,000 Sold Nov 4, 2025

Last List Price
- 2 Beds
- 2.5 Baths
- 1,815 Sq Ft
11708 Southerland Dr

Denton, TX
- $300/SF
- 146 Days On Market
- Current Est. Value $526K
Deborah Siefkin Rightsize Realty Assoc, LLC

$520,000 Sold Jul 14, 2025

Last List Price
- 2 Beds
- 2 Baths
- 2,048 Sq Ft
9620 Callaway Ct

Denton, TX
- $254/SF
- 7 Days On Market
- Current Est. Value $506K
Deborah Siefkin Rightsize Realty Assoc, LLC

$500,000 Sold Jun 20, 2025

Last List Price
- 2 Beds
- 2 Baths
- 2,123 Sq Ft
9509 Ravenwood Dr

Denton, TX
- $236/SF
- 11 Days On Market
- Current Est. Value $482K
Deborah Siefkin Rightsize Realty Assoc, LLC

Price Undisclosed Sold Mar 3, 2025
- 2 Beds
- 2 Baths
- 1,305 Sq Ft
9601 Applewood Trail

Denton, TX
- 23 Days On Market
- Current Est. Value $345K
Deborah Siefkin Rightsize Realty Assoc, LLC

Price Undisclosed Sold Feb 8, 2025
- 2 Beds
- 4 Baths
- 2,750 Sq Ft
12120 Willet Way

Denton, TX
- 0 Days On Market
- Current Est. Value $789K
Deborah Siefkin Rightsize Realty Assoc, LLC

Price Undisclosed Sold Jul 10, 2024
- 3 Beds
- 2 Baths
- 1,724 Sq Ft
921 Circle Ln

Bedford, TX
- 12 Days On Market
- Current Est. Value $344K
Deborah Siefkin Rightsize Realty Assoc, LLC

Price Undisclosed Sold May 30, 2024
- 2 Beds
- 2 Baths
- 1,406 Sq Ft
10021 Obsidian Dr

Denton, TX
- 81 Days On Market
- Current Est. Value $417K
Deborah Siefkin Rightsize Realty Assoc, LLC

Price Undisclosed Sold Jun 29, 2023
- 2 Beds
- 2.5 Baths
- 2,178 Sq Ft
8920 Crestview Dr

Denton, TX
- 33 Days On Market
- Current Est. Value $667K
Deborah Siefkin Rightsize Realty Assoc, LLC

Awards and Designations

NAR - National Association of Realtors
GRI - Graduate REALTOR Institute
ABR - Accredited Buyer Representative
CNE - Certified Negotiation Expert
CRS - Certified Residential Specialist
MCNE - Master Certified Negotiation Expert
MRP - Military Relocation Professional
SFR - Short Sale & Foreclosure Resource
SRES - SRES®, Seniors Real Estate Specialist
SRS - Seller Representative Specialist

Other Experience

First Time Home Buyers, New Construction, Senior Communities

Agent License: Texas #606909B

Deborah Siefkin

(940) 240-8566

Rightsize Realty Assoc, LLC

(940) 240-8566

Homes for Sale by City

Deborah Siefkin

About Deborah

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Deborah is Experienced In

Deborah's Listings and Deals

Deborah's Active Listings

Recently Sold

Awards and Designations

Other Experience