Once seaside stories and summer escapes, these historic Maine estates have transformed into timeless coastal havens.

Dive into this list of historic coastal homes across Maine that capture the essence of seaside grandeur.

The home has been fully renovated with a modern kitchen and first-floor suites.

4 Historic Mansions in Maine (2)

David Banks @ RE/MAX By The Bay via Coldwell Banker Realty

It is listed for $4,370,000.

Where is Southwest Harbor?

Southwest Harbor, Maine, is a town on the southwestern side of Mount Desert Island.

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It has a working harbor, boatyards, and access to Acadia National Park.

The downtown area includes shops, restaurants, and a library.

Year-round residents and seasonal visitors contribute to the towns rhythm.

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Cabinetry lines the walls, along with a mounted microwave and under-cabinet lighting.

Sloped ceilings with exposed beams and small windows bring in light from above.

Dining Room

Wood-paneled walls and vaulted ceilings frame a rectangular dining table with six matching chairs.

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A chandelier hangs above the table, and a fireplace with a decorative screen sits against the far wall.

French doors open onto a stone patio with outdoor furniture.

A tall dresser and cushioned bench are positioned along the perimeter.

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The ceiling is open with exposed wooden beams extending upward.

Two umbrellas provide shade over the table and lounge chairs.

Multiple doorways lead back into the house.

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Source:Story Litchfield @ Landvest, Inc. via Coldwell Banker Realty

2.

A separate unbuildable beachfront lot across the street adds another 66 feet of sandy ocean access.

Listed at $1,675,000, it offers direct access to kayaking, paddle boarding, and nearby beaches.

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Where is Biddeford?

Biddeford, Maine, is a former mill town located along the Saco River near the southern coast.

Its downtown has been redeveloped with housing, businesses, and a growing arts scene.

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The city includes the University of New Englands main campus.

Nearby beaches and trails offer outdoor access.

Living Room

Two sofas and a low coffee table are placed in front of several windows.

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A separate dining area with a dark rectangular table and black chairs is positioned to the right.

The space includes multiple types of seating and light fixtures.

Family Room

Bookshelves and beanbags line the walls around a large TV on a stand.

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A recliner, sofa, and trunk-style coffee table form a central seating area.

The walls are painted blue, and several windows bring in daylight.

Sunroom

Windows wrap around two walls, filling the space with natural light.

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Wicker furniture with colorful cushions is arranged around a glass coffee table.

Decorative touches include a mounted oar, lamp, and wall sign reading Mermaid Lounge.

A long row of windows runs above the sink and countertop along one wall.

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The island includes a gas cooktop and seating for two.

Appliances are built into the cabinetry, and a colorful painting hangs above a sideboard.

A wooden bed with navy bedding faces a window with white curtains.

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A small lounge chair and wicker nightstand sit in one corner.

A closet with louvered doors is built into the wall opposite the bed.

Source:Christina Stone @ Legacy Properties SothebyS International Realty via Coldwell Banker Realty

3.

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The home features hardwood floors, built-ins, water views, and a detached garage with upper-level storage.

Listed at $1,295,000, it provides year-round coastal living just minutes from Portland.

Where is Yarmouth?

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It is known for its annual Clam Festival and historic Main Street.

The Royal River runs through the town and leads to a marina.

Yarmouth also has access to Interstate 295 and a local school system.

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Seating includes a sofa, armchairs, and an ottoman arranged around a rug.

Several windows provide a view of the water and let in daylight.

Framed landscape paintings hang on the vertical paneling walls.

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Cabinets line both sides of the galley layout, with stainless steel appliances and green countertops.

The stove, microwave, and sink are positioned opposite each other for a functional work triangle.

A window above the sink and a glass door at the end bring in natural light.

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A wooden table is paired with a long bench on one side and wicker chairs around the rest.

A white hutch sits in the corner, and a window looks out toward the yard.

The space is painted in a light yellow tone with a white chair rail running along the wall.

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Rec Room

Recreational equipment includes a ping pong table, air hockey, and bar seating.

The space has wood-paneled walls and a ceiling supported with exposed log beams.

A small bar setup with hanging glasses sits along the back wall.

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A large bed with a white headboard is centered beneath a wide window facing the water.

Framed art, lamps, and curtains add to the rooms decor.

Porch

The outdoor area features a stone base and wooden decking with wicker seating.

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A grill is positioned near the center beside a door labeled Guest House.

The porch faces an open yard with nearby houses visible in the background.

Source:David Banks @ RE/MAX By The Bay via Coldwell Banker Realty

4.

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A separate guest house, Ledgelawn, offers three bedrooms, three bathrooms, and preserved architectural details.

Where is Cranberry Isles?

It is reachable by boat from Mount Desert Island.

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The economy centers on lobstering and seasonal tourism.

Each island has limited infrastructure and a small, close community.

Patterned blue curtains and a sectional sofa define the main seating area.

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Multiple armchairs, decorative tables, and framed art fill out the space.

Large windows provide outdoor views and bring in natural light.

A long wooden table stretches through the room with matching chairs and candles arranged down the center.

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The wallpaper features a repeating motif, and a wood-bead chandelier hangs above the table.

One doorway opens directly to the adjacent living area.

Framed artwork fills the wall above the bed, including illustrations, photos, and mounted decor.

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A green bedspread contrasts with the patterned wallpaper and woven blinds.

The room includes wicker seating, two lamps, and a small desk near the corner.

Bathroom

A clawfoot bathtub sits below a wide window, with a curved shower rod above.

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The sink is fitted with chrome fixtures and is paired with a wood-framed mirror and glass shelf.

The walls are half wainscoted and half wallpapered with a geometric design.

Deck

Glass-top tables and metal-framed chairs are arranged for dining and lounging.

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A white railing borders the space and overlooks the trees and grassy yard.

The view includes a stretch of coastline and a backdrop of mountains in the distance.

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