how baynest numbers work

BayNest is built for inspectable housing math.

The promise is not that every number is perfect. The promise is that assumptions are visible, local, and easier to refresh than a static PDF.

Public dataFreddie Mac, Redfin, Zillow, CalHFA, city/county pages, public agencies, and product source notes.

Planning seedsNumbers are starting points for modeling, not appraisals, underwriting decisions, or legal opinions.

Quarterly refreshProducts are designed so medians, rates, programs, and law notes can be updated without rebuilding the system.

What we model

BayNest models the parts of Bay Area housing that generic advice often skips: city-level medians, mortgage-rate sensitivity, property taxes, HOA dues, closing costs, transfer-tax planning, down-payment gaps, reserves, startup equity uncertainty, rent increases, commute tradeoffs, and city-by-city fit.

What we do not claim

BayNest does not make lending, legal, tax, appraisal, electrical, insurance, or real estate recommendations. A spreadsheet cannot replace a lender, agent, attorney, CPA, HOA document review, inspector, electrician, or local official. The tools help you ask sharper questions before those conversations get expensive.

Why this mattersBay Area buyers often lose money because the hidden variable shows up late: HOA dues, appraisal gaps, rent control, transfer taxes, startup equity liquidity, insurance, school boundaries, or commute friction. BayNest puts those variables on the table earlier.

Refresh checklist

Update mortgage-rate seeds from Freddie Mac PMMS or lender quotes.
Refresh home price and rent medians from Redfin, Zillow, and live listing checks.
Check CalHFA and local first-time buyer program availability.
Review California tenant, condo, and buyer-law notes for changes.
Update city-specific taxes, transfer taxes, and product source notes.

BayNest is built for inspectable housing math.

What we model

What we do not claim

Refresh checklist

Start with a tool