REALTOR® · Keller Williams Realty Sioux Falls
Marcos Diaz
Your home. Your journey. Our commitment.
or call / text 605-838-9140
English & Español
Helping individuals and families across Sioux Falls buy, sell, and build long-term wealth through real estate, with honest guidance and strong advocacy every step of the way.
About Me
Discipline, honesty, and a commitment to serving others.
I'm Marcos Diaz, a Realtor with Keller Williams Realty dedicated to serving individuals and families across Sioux Falls and the surrounding areas.
My background in military service has shaped my discipline, work ethic, and commitment to serving others.
I'm passionate about helping clients build wealth through real estate while providing honest guidance and strong advocacy every step of the way.
Fluent in both English and Spanish, I'm proud to help a diverse community achieve homeownership and long term financial growth.
- Communication first. You'll always know where things stand, and I respond quickly.
- Local market expertise. Current on trends, pricing, and opportunities across Sioux Falls.
- Client-focused. Your goals guide every recommendation and decision.
How I Help
More than finding a house.
Buying a Home
A clear plan from pre-approval to keys, with someone in your corner at every step.
Selling Your Home
Data-driven pricing, smart preparation, and strong negotiation to get you the best result.
Off-Market Search
When the MLS doesn't have the right home, I go beyond it and reach homeowners directly.
Moving Made Easy
Free use of our moving trailer for my buyers, on your schedule.
Off-Market Home Search
The home you want may not be on the market.
If we can't find it, we'll go look for it.
- 01
Identify your must-haves
Location, price, layout, features, and the lifestyle you're after.
- 02
Search beyond the MLS
I reach out directly to homeowners and explore opportunities that aren't publicly marketed.
- 03
Create opportunities
Targeted outreach and direct conversations to find homes that fit, even when they aren't for sale.
- 04
Negotiate & guide you
I help you evaluate the property, understand the terms, and get from first conversation to closing.
Track Record
Results across Sioux Falls.
Specializing in first-time homebuyers, military families and veteran's programs, investments, new construction, and luxury homes.
- 13
- Closed sales
- $3.8M
- Total value
- $291K
- Average price
- $195K–$560K
- Price range
Recently sold
- 2500 N Lyme Grass Ave, Sioux Falls$300,000
- 4809 S Klein Ave, Sioux Falls$298,000
- 3809 S Home Plate Ave, Sioux Falls$560,000
- 4404 E Steeple Cir, Sioux Falls$370,000
- 1109 4th St, Garretson$317,500
- 7405 W 51st St, Sioux Falls$290,000
Neighborhoods served
- Southwest Sioux Falls
- Southeast Sioux Falls
- Whittier
- East Side
- Pepper Ridge
- Northwest Sioux Falls
- Garretson
Sales data: Homes.com, prior five years.
Client Reviews
What my clients say.
Search Homes
See every home for sale in Sioux Falls.
Browse live MLS listings, save your favorites, and get alerts when new homes hit the market.
Buyer Guide
What to know before you buy.
Buying a home is a big decision. Here's what I walk every client through before we start, and what to expect once you're under contract.
Ask Me AnythingConsiderations for buyers
Job & income
Do I have a stable job and income? Am I staying in this line of work? What are my expenses, savings, and debts?
Credit score
A credit score of 620 is typically required for conventional loans, while FHA loans have more flexibility depending on down payment.
Down payment
Depending on loan type, your down payment can range from 0%–20% of the purchase price.
Closing costs
Closing costs range from 2–6% of the loan amount. Other fees include inspection and appraisal costs.
Long term planning
Do I plan to stay in this location? Do I foresee major life changes? Consider how your career, family, and lifestyle might evolve over time.
Ongoing costs
Your budget should factor in monthly mortgage payments, property taxes, homeowner's insurance, and maintenance costs (roughly 1%–2% of purchase price per year).
The closing process
1Escrow
Buyer deposits earnest money into a neutral escrow account, which holds funds until the transaction is complete.
2Inspections
Buyer orders an inspection to ensure the property's condition is clear of major issues.
3Loan approval & appraisal
The lender orders an appraisal to confirm the home's value meets or exceeds the purchase price, then approves the buyer for the mortgage.
4Final walkthrough
Before closing, the buyer conducts a final walkthrough to confirm the property's condition is as expected.
5Closing day
Buyer and seller sign documents. Buyer pays closing costs, receives keys, and takes possession, while the seller receives the sale proceeds.
6Packing & moving
Start packing up and planning the move. Congratulations!
Seller Guide
Sell with a plan, not a guess.
Selling your home is about more than putting a sign in the yard. Here's how I help you price it right, prepare it well, and get it sold on your terms.
What's My Home Worth?Before you list
Pricing it right
Price is the biggest factor in how fast your home sells and for how much. I'll prepare a comparative market analysis using recent sales, active competition, and current buyer demand in your neighborhood, so your price is based on data, not guesswork.
Preparing your home
Small improvements can make a big difference: decluttering, deep cleaning, fresh paint, and simple repairs help buyers picture themselves in your home. I'll walk through with you and point out what's worth doing and what isn't.
Timing your sale
When you list matters. We'll look at the market, your next move, and your schedule to choose the right time, and plan how to coordinate selling with buying your next home if you're doing both.
Knowing your bottom line
Before we list, I'll help you estimate your net proceeds by walking through your mortgage payoff, closing costs, and other selling expenses, so there are no surprises at the closing table.
Disclosures
South Dakota requires sellers to complete a property condition disclosure statement. I'll guide you through it so you can be accurate and confident about what you share with buyers.
The selling process
1Consultation & pricing
We meet, talk through your goals and timeline, tour the home, and set a pricing strategy together.
2Prepare & photograph
Your home gets ready for market, then professional photos show it at its best.
3List & market
Your listing goes live on the MLS and major home search sites, backed by marketing to put it in front of the right buyers.
4Showings & open houses
Buyers tour your home. I'll keep you updated on interest and feedback after every showing.
5Offers & negotiation
I review every offer with you, including price, terms, contingencies, and timelines, and negotiate to get you the strongest deal.
6Under contract
The buyer completes inspections and the lender orders an appraisal. I'll handle any repair requests or negotiations that come up.
7Closing day
You sign the final documents, hand over the keys, and receive your sale proceeds. Congratulations!
Moving Made Easy
Your next chapter, made easier.
Moving can be stressful. To help with your transition, my buyers get free access to our trusted enclosed trailer, perfect for boxes, furniture, appliances, or outdoor equipment.
- Free for homebuyers
- Reserve it for a day, a weekend, or longer
- One more way I'm here for you, before, during, and after closing
Let's Talk
Ready when you are.
Answer a few quick questions and I'll reach out personally, usually the same day. Prefer to talk now? Call or text. Se habla español.