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How to Estimate Market Rent Before You Buy

By EYRIE · Real estate finance · 6 min read

Every rental analysis stands on one number: the rent. Get it wrong by $150 a month and a "good" deal quietly becomes a bad one. Here's how to pin it down before you commit — and why the number on the listing is the one to trust least.

1. Pull real comparables

Look at what similar units — same bedrooms, bathrooms, condition and neighborhood — are actually rented for right now, not asking prices from a year ago. Three to five close comps beat one confident guess.

2. Adjust for condition and features

A renovated unit with in-unit laundry and parking commands more than a dated one on the same street. Adjust your comps up or down for the differences a tenant actually pays for.

Treat the seller's stated rent as a claim to verify, not a fact. Sellers quote the best month they ever had, or a below-market rent to a long-term tenant that won't survive turnover. Underwrite the market rent, not their rent.

3. Sanity-check against income rules

Rent tracks local incomes. If your estimate would require tenants to spend far more than about a third of area income, it's optimistic. Cross-check against what the neighborhood can realistically afford.

4. Account for vacancy and lease-up time

Market rent assumes you can actually fill the unit at that price. Budget realistic vacancy and a few weeks of lease-up, so your projection survives contact with reality.

Then run the deal. Drop your verified rent into the EYRIE Deal Analyzer and see cash flow, cap rate and cash-on-cash instantly. See it on Etsy →

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