Investing in Londonderry, NH — Market Analysis
Londonderry prices in the middle of the New Hampshire market, with a median home price around $550,000. Londonderry is a suburban growth market, which typically means single-family stock, longer average tenancies, school-district-driven demand, and lower turnover cost than urban infill. Suburban DSCR deals tend to underwrite cleanly because the rent comps are homogeneous.
Buying a rental property in Londonderry on a DSCR loan means putting a minimum of $110,000 down (20% of purchase price), leaving a loan amount of $440,000 at 80% LTV. At current DSCR investor pricing near 7.50%, principal and interest on that loan runs about $3,077 per month. Add Rockingham County property taxes of roughly $820/month and landlord insurance of about $220/month, and your all-in PITIA lands near $4,117/month. That PITIA figure — not the P&I — is what the lender divides your rent into.
A long-term lease in Londonderry should generate roughly $2,650/month in gross rent. Against a PITIA of $4,117, that produces an estimated DSCR ratio of 0.64x. That is well below the 1.0 threshold on a long-term lease, which is typical for a market at this price point. Financing here generally works one of three ways — a larger down payment, a no-ratio DSCR product, or qualifying on short-term rental revenue instead of long-term rent.
Two New Hampshire-specific items to build into your model: New Hampshire has no income tax and no sales tax, but it funds itself with among the highest property tax rates in the country — often 1.7% or more of full market value, which is the single biggest drag on a DSCR ratio here. The state does levy a meals and rooms tax on short-term rentals. In Londonderry specifically, effective property tax on investment property runs around 1.79% of value annually — about $9,845 a year at the median price — and landlord insurance near $2,640 a year.
On return metrics, Londonderry pencils to an estimated cap rate of 3.58% using a 62% NOI margin, and a gross rent multiplier of 17.3. Monthly cash flow on a long-term lease at 20% down is estimated at $1,467 negative. Negative cash flow at 20% down is common in appreciation-led markets; investors here typically increase the down payment, buy below median, add a unit, or run the property short-term to close the gap.

