Nantucket from the air at sunset
THE KALMAN Co.
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Locally curated real estate, with a concierge level of care — from first showing to keys in hand.

Nantucket Island Real Estate

Live the dream,
thirty miles out to sea.
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Why The Kalman Co.

White-glove guidance
From first showing to keys in hand, every detail is quarterbacked so you don't have to.
Intelligent insights
Transparent comps, trendlines, and pricing — crafted for decisive moves.
Nantucket first
Six generations of local roots, and a network that unlocks private opportunities.

Nantucket real estate services

The Kalman Co. helps buyers and sellers navigate Nantucket real estate with sixth-generation island knowledge, transparent market data, and concierge-level guidance from first showing to closing.
Buying a home on Nantucket
From first search to keys — including HDC, Title 5, and flood-zone guidance most buyers meet too late.
Selling a Nantucket property
Evidence-based pricing, quiet pre-launch exposure, and negotiation built on real comparables.
Off-market property search
A meaningful share of the island trades privately. Six generations of relationships open those doors.
Remote buyer representation
Buying from off-island, guided end-to-end — showings by video, diligence handled, no wasted ferry trips.
Nantucket market reports
Quarterly, data-first reads on prices, inventory, and absorption — built from LINK MLS data.
Neighborhood guidance
All 10 areas compared — drive times, character, price dynamics, and who each one truly fits.
Home valuation guidance
What your Nantucket property is actually worth — from evidence, not algorithms.
Luxury real estate advisory
The $10M+ tier — live estate listings, private-market access, and discretion both ways.

Nantucket homes for sale, curated for you

All listings →
Nantucket homes along the horizon at sunset, seen across golden beach grass
Houses for sale
145 active · from $1.6M
Open Nantucket conservation-edge land with marsh grass and harbor views under a blue sky
Land for sale
13 active · from $1.2M
Nantucket cottage silhouetted against an orange sunset sky
Condos for sale
9 active · from $1.1M

The Nantucket market, decoded

Typical range$1M – $13M
Peak seasonSpring – Summer
Hidden edgeAsk Sean

Nantucket real estate does not behave like any other market. Homes can sell in a weekend, or sit for months and suddenly draw three offers. Financing on the island has its own rules, and the historic district, Title 5 septic requirements, and flood zone designations all shape what a property can become — and what it can cost you if you miss them. That is the context behind every transaction here, and it is why having someone who knows this island from the inside out is not a bonus — it is the difference.

Most Nantucket homes for sale today fall between $1M and $13M, and each price point carries its own dynamics, buyer pool, and negotiating logic. Spring and summer drive the highest activity and the most competition. Fall extends the window for serious buyers. Winter is underrated — inventory is quieter, sellers are motivated, and the right opportunity can surface with almost no competition.

A significant share of Nantucket island real estate never touches the public listings. It moves through relationships — between agents, between families, between neighbors. That off-market network takes years to build, and it is one of the clearest advantages a sixth-generation Nantucketer brings to the table.

Explore Nantucket's neighborhoods

All guides →
Sean Kalman
Your Nantucket realtor

Sean Kalman — six generations deep, and it shows.

Born and raised on Nantucket, Sean knows which neighborhood floods in a nor'easter, which builder does meticulous work, and which off-market listings are worth knowing about before they hit the MLS. Buying remotely? He's guided clients through the entire process by FaceTime — you don't need to be here at every turn. You need someone you can trust who already is.
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Questions, answered

Straight answers on buying and owning here. For anything else, ask directly — Sean replies personally.
What do homes on Nantucket cost?

Most Nantucket homes for sale fall between $1M and $13M, with condos and mid-island properties anchoring the entry point and waterfront estates reaching well beyond. Every price band has its own buyer pool and negotiating logic — the right strategy at $2M looks nothing like the right strategy at $10M.

When is the best time to buy on Nantucket?

Spring and summer bring the most inventory and the most competition. Fall rewards patient buyers, and winter is quietly one of the best windows on the island — motivated sellers, less noise, and room to negotiate. The honest answer: the best time is when the right property surfaces, and that can happen any month.

Can I buy a Nantucket home without being on the island?

Yes — a large share of Nantucket purchases happen remotely. Sean has guided buyers through the entire process by FaceTime: video walkthroughs, local inspections, and coordination through closing. You don't need to be here at every turn; you need someone you trust who already is.

How do I hear about off-market Nantucket listings?

A meaningful share of Nantucket real estate trades without ever hitting public listings — through relationships between agents, families, and neighbors. Those conversations take years of local standing to access. Tell Sean what you're looking for, and you'll hear about the quiet opportunities that fit.

Do Nantucket homes make good rental investments?

Summer rental demand on Nantucket is deep and consistent, and well-located homes book strongly year after year. Short-term rental rules continue to evolve at the town level, so current bylaws should be part of any purchase decision — Sean tracks them closely and will tell you plainly how they affect a specific property.

What makes buying on Nantucket different from the mainland?

The historic district commission, Title 5 septic requirements, flood zone designations, and island logistics all shape what a property can become — and what it can cost you if you miss them. It's not a harder market, but it is an unforgiving one for buyers working without local knowledge.

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THE KALMAN Co.
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Nantucket, MA 02554 · 508-228-4578 · sean@thekalmanco.com · Brokered by eXp Realty