The Real Cost of Owning Property in Bourne, Massachusetts

The Price Confusion: Five Numbers, One Honest Range

Ask five sources what a home costs in Bourne right now and you'll get five different answers, and almost nobody selling you on the town will explain why. Zillow's Home Value Index puts it at $671,053 as of June 30, 2026, up 2.7% year over year. Movoto's median sale price for June 2026 is $677,000. Those two numbers come from different methodologies - one a smoothed valuation model, the other actual closed sales - and they land within $6,000 of each other, which is about as close to agreement as this market gets. That convergence is why $670,000-$680,000 is the best-supported current range for Bourne as a whole.

NeighborhoodScout shows $723,133, but that figure is dated to Q4 2025 and built on its own separate methodology, so it isn't directly comparable to the mid-2026 Zillow and Movoto figures even though it's in the same rough neighborhood. Further out, older or lower figures still circulate on general real-estate and demographic sites - homes.com cites $580,000, and Census-derived data (via Neilsberg) shows a median home value of $575,600 - both of which are either stale relative to 2026 conditions or measuring something other than current market sale price (Census "home value" is a self-reported survey figure, not a transaction price). Treat those two as historical context, not as what a buyer should expect to pay today. One more figure worth flagging so you don't mistake it for a market price: Ownwell reports $434,000 for FY2026, but that number reflects assessed value for tax purposes, which in Massachusetts routinely runs well below fair market value - it's the number your tax bill is based on, not the number you'd actually pay to buy the house.

For regional context, a May 2026 real-estate-agent market report (lower-confidence than Bourne's own dated figures above, since its methodology isn't disclosed) put Bourne's median at $588,000 against a Cape-wide town spread running from Dennis's $526,000 up to Chatham's $1,465,000 - a roughly 2.5-2.8x range across the Cape's 15 towns. Wherever Bourne's own current figure lands within its $670K-$680K range, it sits well down that regional spread, not at either extreme.

Property Tax: FY2026's Small Relief, and the Cap That Shapes Everything Above It

Bourne's FY2026 residential property tax rate is $7.65 per $1,000 of assessed value, down from FY2025's $7.81 - a roughly 2.05% decrease, confirmed by two independent sources. That's genuinely good news relative to last year, but it comes with an honest caveat the rate alone doesn't convey: a lower rate doesn't guarantee a lower bill. If your home's assessed value rose enough this cycle, the rate cut can still be outpaced by the assessment increase, and your actual bill can go up even as the headline rate goes down. The rate and the assessment move somewhat independently, and only your specific parcel's assessed value tells you which effect wins.

In Cape Cod context, $7.65/$1,000 is roughly the third-highest rate among the Cape's 15 towns - Chatham sits lowest at $3.47, Sandwich highest at $10.57 - so Bourne lands toward the higher end locally even as it runs about 37% below the Massachusetts statewide average of roughly $12.40/$1,000. Both things are true at once: higher than most of the Cape, meaningfully lower than the state as a whole.

The structural mechanic behind all of this is Proposition 2½, the 1980 Massachusetts ballot law that caps how fast a town's total property tax levy can grow. A town's levy can't exceed 2.5% of the town's total assessed property value (the "levy ceiling"), and even within that ceiling, the levy itself can grow at most 2.5% per year over the prior year's limit - regardless of how much individual assessed values rise in a hot market. New construction is excluded from that 2.5% cap, meaning growth from new building adds revenue without counting against the limit, which is part of why towns have some incentive to permit new development. Bourne, like every Massachusetts town, can only exceed that cap through a voter-approved override (a permanent increase) or a debt exclusion (temporary, tied to a specific bond or project) - both of which show up as separate line items on a tax bill rather than folded into the base rate. Despite the cap, Massachusetts property taxes have nearly doubled in real terms since 1984, so Proposition 2½ should be understood as a brake that slows growth, not a ceiling that prevents it - especially as reassessments catch up to fast-appreciating waterfront value on the Cape.

Short-Term Rental Income: Real Numbers, and an Honest Gap

If you're weighing Bourne as a rental-income property, the data that exists is real but thin, and it's worth being upfront about the gap. Awning.com reports 145 active Airbnb listings in Bourne, with the top-performing listing earning $209,034 in a year and the second-ranked property at $163,516; other major short-term-rental data platforms (AirDNA, Rabbu, Mashvisor) don't publish Bourne-specific numbers at all, so these figures should be treated as a single, uncorroborated source rather than a market-verified figure. Those are genuinely strong numbers for a top-of-market listing. What's missing is any aggregate figure - no market-wide average occupancy rate, no average daily rate, nothing that tells you what a typical or median Bourne short-term rental actually nets in a year. Anyone using Bourne's top two listings as a stand-in for what a typical property will earn is extrapolating from the best performers in the market, not the average one - that gap in the data is real, not an oversight in how this page was written.

On top of whatever a listing earns, Massachusetts' statewide short-term rental law (effective mostly July 1, 2019) requires registration with the Department of Revenue and imposes a 5% state room occupancy excise, with municipalities able to add a local option excise of up to 6% on top of that. Cape Cod carries one more layer that generic STR explainers miss entirely: Barnstable County municipalities, Bourne included, are automatically subject to an additional 2.75% Cape Cod and Islands Water Protection Fund excise, funding regional water-quality and wastewater infrastructure. Stack all three and a Bourne short-term rental transaction can carry excise taxes as high as roughly 13.75% (5% state + 6% local + 2.75% Water Protection Fund) on top of whatever nightly rate is charged - a real cost that has to be built into any income projection, not treated as a footnote. Operators also need to carry $1,000,000 in minimum liability insurance unless their hosting platform provides equivalent coverage, since standard homeowners policies typically exclude short-term rental activity.

Separately, Bourne has received the Commonwealth's official "Seasonal Community" designation, based on qualifying thresholds tied to short-term rentals exceeding 3.25% of the town's housing stock and seasonal housing exceeding 12.5% of total inventory. That designation is real and sourced, and it's indirect evidence that Bourne has a meaningful seasonal population swing - but no verified numeric multiplier (how many more people are here in July than in January) could be confirmed for Bourne specifically, so this page won't invent one. No Bourne-specific local STR bylaw beyond the statewide law was found in the research behind this page either; that should be read as "none found," not as a guarantee none exists, since the town's own bylaw pages weren't directly accessible during this research.

Flood and Storm Risk: Which Villages Carry It, and What History Actually Showed

Bourne's flood exposure isn't evenly distributed across its villages, and it isn't the same on both sides of the Cape Cod Canal. The genuinely low-lying, exposed shoreline sits on the Buzzards Bay side of town: Monument Beach, Pocasset, Cataumet, Gray Gables, and Buzzards Bay village itself. These are the villages where a prospective buyer should be asking the most pointed questions about FEMA flood zone designation, elevation, and insurance cost before making an offer - not as a generic Cape Cod caveat, but as a Bourne-specific one tied to real, on-record storm history.

That history is not hypothetical. Hurricane Carol, which struck August 31, 1954, left specific, documented damage in Cataumet and on Bassett's Island in Red Brook Harbor: sailboats thrown into trees, a house swept from across the bay in Fairhaven or Mattapoisett and deposited on Bassett's Island, a former turkey farm's carcasses caught in trees, waterfront piers destroyed, a cement barge washed ashore at Scraggy Neck, and real dune and erosion loss on Bassett's Island itself. That's not a generic "hurricanes can happen here" warning - it's a specific, sourced account of what a real storm did to real Bourne shoreline within living memory of some current residents' parents or grandparents. It's also worth knowing that the broader region's benchmark disaster, the Great Hurricane of 1938, struck Buzzards Bay directly on September 21 of that year, and federal weather assessments have warned that a repeat storm of that intensity could again be severe for this same stretch of coast.

This page won't manufacture a specific flood-insurance premium figure for Bourne, because none was confirmed in the research behind it, and premiums vary enormously by exact flood zone, elevation, and structure. What can be said plainly is that the Buzzards Bay-facing villages above carry real, historically-documented storm exposure that the Cape-side villages (Bourne Village, Sagamore, Sagamore Beach) don't share in the same way, and that exposure should shape both the insurance conversation and the purchase-price expectations for a specific property before you sign anything.

The Bridge Replacement Project: A Real Future Cost, Not a Footnote

Both of the Cape Cod Canal's highway bridges - the Bourne Bridge and the Sagamore Bridge - are being replaced in an eleven-year, roughly $4.5 billion regional project running 2025 through 2037, with the Sagamore side going first and the Bourne side following from 2029 to 2037. That's regional context, not Bourne-specific detail, but Bourne-specific impacts are already being discussed locally and deserve to be treated as a real, disclosed consideration for anyone buying property near the affected areas rather than buried as transportation-beat news.

Locally reported Bourne impacts include potential property takings in South Sagamore, effects near the Bourne Bridge and the Market Basket lot at Sagamore, and impacts to Bourne Scenic Park, the canalside campground in Buzzards Bay village that has operated since 1951. Bourne's own Planning Board has reportedly been split on how proactively to review the land-use and zoning impacts of these still-developing plans, which is itself useful information: the specifics aren't fully settled yet, even at the town-government level. Anyone considering a property in South Sagamore, near the Bourne Bridge approach, or adjacent to Bourne Scenic Park should treat this project as a live, multi-year disruption and potential-taking risk to ask about directly - both at the Bourne Planning Board and through the state's own bridge project updates - rather than something this page can resolve with a fixed number, since the plans themselves are still developing.

What This Page Can't Tell You

This page can tell you where Bourne's numbers agree, where they genuinely disagree, and where the honest data gaps are. It can't tell you what your specific parcel is assessed at, what your actual combined tax bill will be this year, what flood zone a specific address sits in, or what a specific short-term rental will really net after the full stack of state, local, and Water Protection Fund excise taxes. Those are parcel-specific and household-specific questions, and getting them wrong before a purchase is exactly the kind of mistake this page is trying to help you avoid, not accidentally cause.

For a specific property's current assessed value and tax bill, contact the Bourne Assessing Department directly - they hold the parcel-level data this page deliberately doesn't guess at. For a realistic read on what a specific property could sell for or rent for, talk to a local real estate agent who works Bourne's villages day to day, since even the best-sourced town-wide figures above are averages, not predictions for one house. And for actual flood-zone status, insurance cost, and short-term-rental liability coverage on a specific address, a licensed insurance agent is the only source that can give you a number to actually budget around. Nothing on this page is legal, tax, insurance, or financial advice.