Investing in Chatham, MA — Market Analysis
Chatham is a high-basis market by Massachusetts standards, with a median home price around $1,100,000. Chatham is a coastal market, which changes the underwriting in two specific ways: insurance is a far larger line item than an inland comp, and windstorm or flood coverage may be written separately from the hazard policy. Both flow directly into your DSCR ratio.
Buying a rental property in Chatham on a DSCR loan means putting a minimum of $220,000 down (20% of purchase price), leaving a loan amount of $880,000 at 80% LTV. At current DSCR investor pricing near 7.50%, principal and interest on that loan runs about $6,153 per month. Add Barnstable County property taxes of roughly $1,045/month, landlord insurance of about $843/month, and an HOA/master-association allowance of $320/month, and your all-in PITIA lands near $8,361/month. That PITIA figure — not the P&I — is what the lender divides your rent into.
A long-term lease in Chatham should generate roughly $4,125/month in gross rent. Against a PITIA of $8,361, that produces an estimated DSCR ratio of 0.49x. 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.
If you intend to operate the property as a short-term rental, estimated gross nightly revenue in Chatham is around $8,875/month across a full year. Lenders do not credit gross STR revenue dollar-for-dollar — they typically haircut it 25%–30% for vacancy, cleaning, platform fees, and management. Applying a 28% haircut gives an effective $6,390/month, or a DSCR ratio of 0.76x. Even on short-term revenue this is a tight file, so plan on a larger down payment or a no-ratio structure.
Two Massachusetts-specific items to build into your model: Massachusetts applies a state lodging excise plus local option tax to short-term rentals and requires registration with the state registry; many Greater Boston municipalities also set a separate, higher commercial tax rate that can apply to certain multifamily parcels. In Chatham specifically, effective property tax on investment property runs around 1.14% of value annually — about $12,540 a year at the median price — and landlord insurance near $10,120 a year.
On return metrics, Chatham pencils to an estimated cap rate of 2.79% using a 62% NOI margin, and a gross rent multiplier of 22.2. Monthly cash flow on a long-term lease at 20% down is estimated at $4,236 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.

