Central Texas' #1 Cash House Buyer

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Meet the Buyer

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Robert Grunnah
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UT Austin '96, MBA '04

          Robert Grunnah has been Austin’s leading cash house buyer since 2004, with over 1,200 properties purchased. As Broker/Owner of Castle Hill Investments, his firm renovates and resells over 100 houses and duplexes a year, providing quality homes to homebuyers and investors across the country.

          His unrivaled reputation is as a fair and honest businessman who honors his commitments. He makes fair offers, he uses his own cash to close quickly, and does so in a consummate, professional manner.

to start

Schedule a Visit

Free, no-obligation consultation.

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within 24 hours (often less)

Get a Cash Offer

You sell directly to us. No expensive real estate agent commissions.

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within 10 days

You Get Paid

We can close on your house in as little as 10 days or later if you prefer.

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Robert and his team were a joy to work with. The offer on our duplex was reasonable, as well as the terms, and the transaction was astonishingly quick and frictionless. They did exactly as they said they would do in a highly professional and cordial manner. It is without reservation that I can make a 5+ star recommendation for doing business with Robert and the Austin House Buyer team.

Tim Masters

Google Reviews

We highly recommend working with Robert Grunnah's company . We called Robert in response to a postcard . He came out the same day to evaluate our property and made us a fair offer. Robert made the process quick and seamless.

Kenneth Wood

Google Reviews


No Realtors

There’s no need to deal with realtors or realtor commissions.

No Closing Costs

We cover closing costs to save you even more $$$.

No Repairs

We buy your house as-is, no need to even sweep the floor.


Homes purchased


Seller satisfaction


Cash offer in under 24 hours


Your Questions About Selling a Home As-Is, Answered

Selling a house as-is actually simplifies the home-selling process, rather than complicating it further. But before selling a house as-is for the first time, there are a few basic questions that you may want to have answered.


Sell My House Fast in Round Rock, TX

When time is of the essence and you need to sell your house fast in Round Rock, TX, you might not have the time to sell your home the traditional way. It can take anywhere from six to 12 months to find the right buyer for your home and another four to seven weeks to close on the house. Austin House Buyer eliminates the wait when it comes to real estate.

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