Topic 5 of 8

Returns and underwriting

New Construction Investment, Lehigh Valley PA: Northampton, Lehigh, and Carbon Counties.

The return on a new-construction rental comes from the same math as any rental, cap rate, cash flow, and equity over time, but the inputs look different on a new build. A higher purchase price, a full tax assessment, and one-time setup costs often make year one look weaker than later years.

Use the tools here as screening and underwriting methods; the specific numbers for your property must be verified against current data.

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Common investor questions, answered first

What is a cap rate and how do I use it?

A cap rate is net operating income divided by the property's value or purchase price. It is an unlevered, one-period snapshot of what the property itself earns from rent minus operating expenses, before any mortgage. It is useful for comparing properties, but it ignores financing and does not tell you your cash flow once a loan is on the property.

Source: PropertyMetrics, The Cap Rate: What You Should Know

What is the 1-percent rule?

The 1-percent rule is a quick screening heuristic: a rental's gross monthly rent should be roughly 1% of its total purchase price, so a $300,000 property should rent for about $3,000 a month. It is a first-pass filter for whether rent can cover costs and potentially cash flow, not a full analysis, and it ignores expenses and financing.

Source: Investopedia, 1% Rule in Real Estate

How do I estimate rent when there are few comparable rentals?

In a new community with little rental history, start with the appraiser's projected rent schedule, nearby active rentals in similar floor plans, and input from a local agent or property manager. Treat the estimate as a figure to verify, not a guarantee, and be conservative, because an overstated rent is the fastest way to overstate cash flow.

Source: LeaseRunner, Rental Property Cash Flow

Why does year-one cash flow often look weaker than year five?

A new build is typically purchased at a full retail price, is assessed at full finished value for property taxes, and carries a larger mortgage, which compresses early cash flow. Year one also includes one-time setup costs. Over time, rent can grow while the payment stays fixed and maintenance stays low, which is why the same property often looks better by year five.

Source: Green Residential, How Rental Property Cash Flow Can Fall

Key takeaways

Cap rate and cash flow answer different questions; run both.
Use the 1-percent rule only as a quick filter, never as the whole analysis.
Estimate rent conservatively and verify it against current comparables.
Year-one cash flow is often thinner than year five on a new build; model the full hold period.

The bottom line

Underwrite the property over your full holding period, not just year one. The cap rate and the 1-percent rule are starting points, but your real cash flow comes from verified rent, taxes, and financing.

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Investor Guidance

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Tell Tim what you are evaluating and he will help you underwrite it with current Lehigh Valley data. No pressure, no obligation.

Tim Tepes is a PA Licensed Associate Broker with 36+ years in the Lehigh Valley and 700+ documented transactions. He specializes in investment properties and small multifamily assets across Northampton, Lehigh, and Carbon Counties.

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