Our Services


MLSONLINECR.COM is an online Real Estate Database for Costa Rican listings property details and Listing Company contact information. Listings are from Real Estate Professionals that are members of the Multiple Listing Service.

WEB DESIGN SERVICE Custom Web Design services including: * MLS integration within your website * Domain Selection, Email Setup , Shared or Dedicated Hosting, Forms Design and Processing, Database Design and Transfers CONTACT US TODAY ABOUT YOUR DESIGN NEEDS

A private, Peaceful community, close to modern amenities and local beaches. Hidden Valley construction began in 2005. New high voltage electricity, 30 phone lines, water system, cable TV, high speed internet and roads were completed first. Subsequently, 6 homes were built and sold. Phase 1 lots are segregated, registered and ready for home construction. Located within 5 minutes of Hidden Valley is Central Huacas shopping, medical, dental clinics and pharmacy. 15 minutes away are the famous local beaches of Flamingo, Tamarindo and Playa Grande.

James Sr. McKee

Phone: (506) 2653-8437 Mobile: (506) 8827-5533
Email: osoviejosa@outlook.com

James, Jr. McKee Ruiz

Phone: (506) 2653-8437 Mobile: (506) 8917-4681
Email: jameswmckee@live.com

Featured Homes
Click on the "View Listing" button for details

  • property photo 1
    Hidden Valley Home and Lot #8 →
    Home_sales
    $160,000 USD / property
    Huacas.", " . Guanacaste
  • property photo 1
    Lot 9 →
    Home_sales
    $600,000 USD / property
    Huacas.", " . Guanacaste
  • property photo 1
    Karen's Place →
    Vacation_Rentals
    $250 USD / nightly
    Huacas.", " . Guanacaste
  • property photo 1
    Casa June →
    Vacation_Rentals
    $300 USD / nightly
    Playa Negra.", " . Guanacaste

Featured Lots
Click on the "View Listing" button for details

  • property photo 1
    Hidden Valley Lot 13 →
    Investment
    $125,000 USD /
    Huacas.", " . Guanacaste
  • property photo 1
    Hidden Valley Lot 12 →
    Investment
    $125,000 USD /
    Huacas.", " . Guanacaste
  • property photo 1
    Mountaintop Lot 11 →
    Investment
    $125,000 USD /
    Huacas.", " . Guanacaste
  • property photo 1
    Hidden Valley, Lot 10 →
    Residential
    $150,000 USD /
    Huacas.", " . Guanacaste
  • property photo 1
    Hidden Valley, Lot 3 →
    Residential
    $40,000 USD /
    Huacas.", " . Guanacaste

Featured Commercial
Click on the "View Listing" button for details

  • property photo 1
    NY Pizza Restaurant and Apartments →
    investment
    $210,000 USD / for property
    Huacas.", " . Guanacaste

About Us


Oso Viejo is a Costa Rican Corporation founded in 1991. The Company includes; Travel agency, Real Estate, Web design and SEO Services .

With the addition of JW Productions, Oso Viejo also includes photography, video and graphics Services. . . .

Oso Viejo founder (Jim) has 19 years experience in the California Computer Systems Industry. 1990 - 2003, Jim was the initial investor and headed the design, construction and management team for the Marina Flamingo. During that time, the Marina developed Tourism Services including Sport Fishing and Sailing. In 1991, Frommer's Guide to Costa Rica included these services for Flamingo Beach. Oso Viejo is now recommended in 5 of the top international Guide Books for Costa Rica Tourism. In 2003, with the growth of the internet, Oso Viejo began the web Services division.

Latest News


MLS Database Release, Oct 2016

Oso Viejo SA announces the release of a Multi Listing Database Service designed for the Real Estate Industry of Costa Rica and surrounding Central American Countries. The Package includes a multi Company Real Estate database, supporting Pachelbel Administrative software and a modern Gateway Webpage tailored for each member Real Estate Company.

The package has been in development and testing for over 6 months and is now ready for release.

Pachelbel Admin Release, Oct 2016

Pachelpel Content Management System" (CMS). CMS allows you to insert, modify and delete "your" Records, thereby providing you with Content Control.

Non-Members may apply for membership by completing the MEMBER APPLICATION FORM.

Contact Us


Hidden Valley Realty
Hidden Valley #9
Huacas, Guanacaste, Array
Phone: (506) 2653-8437, Mobile: (506) 8917-4681
James Sr. McKee

osoviejosa@outlook.com