Your Investments Deserve
30+ Years of Experience
Daron R. Hays
I built my first house at 18. Construction and real estate investing have been part of my life ever since. Even after my engineering degree 10 years later, and working as a structural engineer, I was soon right back to doing what I love — construction and real estate investments. This is a passion of mine, and 100+ investments later, I believe that the best investments start with the best knowledge. This app was once a spreadsheet that I used myself and shared with family and friends, now this version is faster, includes AI analysis for extra clarity, and amazing charts and data — in minutes.
- →30-year licensed contractor
- →B.S. Structural Engineering (Honors), Oregon State University
- →Active real estate investor
- →Private investments, idé investments, LLC
- →Full-stack developer (React, Node.js, Tailwind, Python, Supabase, Stripe, integrations across the stack)
Built to Help You Succeed
Every NestCalc.ai product was designed from decades of personal experience in real estate investments, engineering and construction — deep domain expertise behind everything we build, from the CasaWise.ai analysis engine to HomeFastCalc.com and beyond.
NestCalc.ai exists to build software that solves real problems — from professional-grade real estate analysis to custom websites, landing pages, and AI applications. I built this company the way I build everything — with precision, transparency, and a focus on creating both short term and long-term value for you.
What NestCalc.ai Does
My goal is to build software that helps you make the best decisions possible. NestCalc.ai develops AI-powered applications, custom websites, landing pages, AI strategy and consulting — all engineered with the precision of 30+ years in construction, engineering, and real estate investing. Our products, CasaWise.ai and HomeFastCalc.com, show that standard in action: professional-grade analysis tools I trust with my own investments. Knowledge is power — and every NestCalc.ai project is built to put that power in your hands.
What This Means For You
Make your next decision with confidence. When you work with NestCalc.ai — whether you use one of our products, commission a website or landing page, or bring us in for AI strategy — you're working with a company built on real experience: 54 construction projects, private capital management, multiple businesses operated, and hundreds of real estate deals analyzed. We don't build from templates or theory. Everything NestCalc.ai delivers is grounded in three decades of solving real problems.
For Investors Evaluating Deals
Our products — CasaWise.ai and HomeFastCalc.com — give you the same rigorous analysis used by professional investors — the same analysis I use for my own investments, now available for yours.
For Partners and Affiliates
I built NestCalc.ai the way I build everything — with precision, transparency, and a focus on creating long-term value. Give your audience the best. Let’s start building your project together.
For Companies and Collaborators
Experience from engineering, real estate investment, construction, yoga business owner, and AI-powered software — I’ve spent 30 years solving complex problems across diverse industries. I bring that same versatility to every collaboration.
About the Company
NestCalc.ai, LLC is a Wyoming limited liability company founded in 2026. It owns and operates CasaWise.ai — an AI-powered real estate investment analysis platform — and HomeFastCalc.com — a fast, mobile-first rental analysis tool. The company also builds custom websites and landing pages and provides AI strategy and consulting for businesses.
Both products share a single calculation engine, the same treasury-yield and mortgage-rate live data feeds, and the same philosophy: real numbers, plainly displayed, optimized for mobile, desktop, tablet and laptops, ready to go.
Frequently Asked Questions
Who is behind NestCalc.ai?
NestCalc.ai was founded by Daron R. Hays, a structural engineer (Oregon State, Honors), licensed General Contractor, and real estate investor with 30+ years of experience. He has completed 54 construction projects, made 100+ real estate investments, and personally designed and built both CasaWise.ai and HomeFastCalc.com.
What makes NestCalc.ai different?
NestCalc.ai builds software from firsthand experience, not templates. Its real estate products deliver professional-grade investment analysis grounded in decades of construction and investing — and the same precision goes into every custom website, landing page, and AI application the company builds.
Is NestCalc.ai independent?
Yes. NestCalc.ai, LLC is an independent Wyoming limited liability company founded in 2026. It owns and operates CasaWise.ai, an AI-powered real estate investment analysis platform, and HomeFastCalc.com, a fast mobile-first rental analysis tool.
What can I do with NestCalc.ai products?
With CasaWise.ai and HomeFastCalc.com you can analyze real estate deals, project returns and payoff timelines, compare multiple properties, review live market and macroeconomic data, and generate professional PDF reports. More products and services are on the way.
What services does NestCalc.ai offer?
Beyond its products, NestCalc.ai builds custom websites, landing pages, and web and mobile applications, and provides AI strategy and consulting — bringing 30+ years of construction, engineering, and investment experience to every project.