Builders - Developers - Real Estate Management

American General Investors LLC

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Welcome to AGI

 American General Investors LLC, which was organized in 1965, specializes in the development, construction, and management of commercial and residential real estate. We are a family owned and operated business. Some of our principals are third generation family members involved in the real estate industry. 

Meet The Team

Nick Guastaferri, Mike Guastaferri, Mark Guastaferri, Paula Mirabelle

Check out our team's pictures and bios!

What We Do

Stonewood, Commercial

 American General Investors acquires real estate, guides it through the local and state land use agencies to increase it's potential to the maximum, constructs a building or buildings, and finally, manages the development for an extended period of time. We currently manage a substantial amount of commercial and residential real estate in the Prospect, Connecticut area and the Waterbury, Connecticut area.  

Our Business

CrossPointe, Commercial

 We have developed, constructed, and managed a variety of complexes from the simplicity of a single family home to residential condominiums, retail plazas, office buildings, and specialty buildings such as a 150 bed skilled nursing facility and a 9,000 square foot fitness center. 

Commercial Real Estate

Check out our current commercial real estate holdings.

Residential Real Estate

Check out our current residential real estate holdings.

Featured Current Availability

Heritage Professional & Business Center

60 Waterbury Road, Prospect


1,200 square foot, ground floor, end suite - $1,700 per month


1,000 square foot, ground floor suite - $1,400 per month

CrossPointe North Building

50 Waterbury Road, Prospect


1,200 square foot, ground floor, end suite - $1,700 per month

4.83 Acres on Route 69 Prospect - For Sale or Lease

  • 4.83 acres on Route 69 in Prospect.
  • Approx 412 feet of frontage on Route 69
  • Approx 335 feet of frontage on Knapp Drive
  • High traffic counts
  • Business Zoned
  • No enviormental issues

Contact US

American General Investors, LLC

50 Waterbury Road, Suite G, Prospect, Connecticut 06712

Phone: (203) 758-5180 Fax: (203) 758-0858

Office Hours

Monday - Friday: 9am - 4:30pm

Saturday: Closed

Sunday: Closed

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