New Jersey’s infamous and MASSIVE Blairsden estate is now under contract! The 62,000 square foot historic estate is located at 30 Blair Drive in Peapack-Gladstone, NJ. Set high atop the Bernardsville mountains on 34 acres of land, this Louis XIII style mansion was originally owned by the banker/railroad magnate/stock exchange tycoon Clinton Ledyard Blair. It was designed by Carrere and Hastings Architects and construction began in 1898 and was completed in 1903. In February 1949, Clinton died at the age of 82. The following year Blairsden and 50 acres of property were sold for an estimated $65,000 to the Sisters of St. John the Baptist. The Sisters then sold it for $5 million a few years later. It appeared on the market last year with an insanely cheap asking price of just $4,900,000. We do not know how much it sold for yet, but if it sold at or near the listing price then whoever bought it got quite the deal!

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  • DR.VEGAS

    Hope the buyer did get a deal…because upkeep on 62k sf is gonna be murderous!




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  • Daniel

    Stunning home that I would take over 90% of the other supposed ‘mansions’ out there.




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  • Grrrowler

    Congrats to the new owners. Even at twice the asking price it was a deal, although it looks like it needs at least that much more in renovations. It’s still an awful lot of historic and interesting house for a relatively small amount of money.




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    • NOVA Ben

      What a welcome change from what we normally see! Inflated prices where people ask for three times what a property is worth, and then this out of left field…definitely a bargain.




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  • george

    Rumor has it needing a lot of work as well as mould problems. Roof needs a complete replacement. Only God knows the damage caused by that.




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    • NOVA Ben

      Where are these supposed rumors coming from? Don’t read me wrong, I’m genuinely curious




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  • Last Man Standing

    I am so glad someone finally jumped on this. From the few pictures available it was stunning in its shambles.
    THIS was a treasure. Blairsden is what I think of when I think of a mansion.
    The home across the pond was going for somewhere in the 20+ million dollar range. Although, I can’t find the listing for it. It might have sold.

    If they fix Blairsden up, I think they struck it rich.




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  • Brian

    Kenny,

    Please take this post DOWN. This has been my favorite mansion since I was a child, and it’s killing me that I couldn’t buy it for basically land value. I better stay off your site until it rotates away….




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  • marc22

    A bargain is an understatement. Even if you put 5 – 10 million into renovations, the main floor has been restored and alot of work was started by the previous owner before he died, so once finished you will have a classic mansion that none of the new homes can compare to. Plus the site, with the mansion dramatically perched on that mountain with the fountain and stairs cascading down is jaw droppingly beautiful. The mansion itself is perfection, gorgeous profile, roof, facades, the long walled in entry court, the scale, oh shear perfection. Hope the buyer is a lover of historic homes and does not intend to put his own stamp on the place. It’s a Rembrandt so leave it alone.




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  • rob

    Beautiful home. Is it on a landfill or next to a slaughterhouse? YOu could pick it up for 4.5 and spend 10 on renovations and still have a bargain.




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    • matt

      no, its in an absolutely stunning area… the problem with this house is that it needs a ton of work




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  • mak

    It got a HUGE Koi pond, so you know that it’s just perrrfect!

    Seriously, I think it’s nice, but it’s stuck behind that institutional crap in the front b the driveway. It might not bother you during the summer, but you would see it through the trees all winter long. Maybe that’s why it was so hard to get purchaser enthusiasm for so long…who knows…




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  • richvanc

    You and your KOI ponds, Mak…soooo hilarious! I do kinda’ like this home even if it’s going to cost much $ to restore. I think it’s worth the cost and the effort.




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    • mak

      We all have our addictions, amirite?




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  • NOVA Ben

    Well I sincerely hope that the buyer is about as excited as a kid on Christmas morning, because they sure got a deal here. And as others have said, you could pour damn near 8 figures into work and renovation and still rightfully feel that you’ve made a good investment.




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  • Tony

    I’m not seeing 62,000 square feet. I’m assume that square footage must be including guest houses and out buildings or something. But it is a beautiful home. Not sure about whether the price is a good deal or not cause it is not located in a desirable area. Its not in Alpine or Saddle River. I never heard of the area that this home is in but I guess it is a good price all things considered. The home looks beautiful and after some renovations it will look way better than most homes in New Jersey beside The Stone Mansion.




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    • marc22

      Not a desirable area? The area is prime NJ horse/hunt country and is indeed a very well to do area. Ever hear of Malcolm Forbes? he lived there as have many old money families for over a century on very large estates, many of which had hundreds of acres, not 2 acre parcels like in Alpine. Hear of the King of Jordan? That’s right, he purchased in the area also.




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  • lambskin

    I don’t get why the Sisters sold it so cheap after a few years after 1949…anyone know?




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    • Al

      The sisters owned the home for near 50 years. That’s not just a few and it was on the market for $8.9M for many years without any takers. The 62,000 sq feet includes the l’orangerie of 20,000 sq feet that is under the south terrace garden. The mansion is about 10,000 sq feet per each of 4 floors otherwise. The top floor is servants quarters and a couple of guest rooms for male guests as single female guests would be in rooms in the second floor. WOW I love this mansion 🙂




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  • CindiC

    I do too, Al. It is a treasure and should, if it is not, be on the National Register of Historic Places. It is just lovely. Wouldn’t it be wonderful if the owners held a ball there when it was finished to show some of society what they have done? And Tony, not a desirable area??? Peapack, Gladstone, Mendham, Far Hills, Bernardsville, Basking Ridge, Bedminster–these are by far some of the nicest towns in New Jersey, if not the country. Go for a drive and have a look. You’ll like what you see.




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  • Kathleen Watkins

    It’s awesomely cool that I have been in this mansion as a kid and young adult. My grandpa was the handyman and lived at the house on Peapack road, that also belonged to the nuns and that house was huge too. Sister Marguerite used to squeeze my cheeks! Love it. It is a most beautiful place. I remember driving up the road…what a treasure. I believe that the Kennedy family had a summer home along the back road as well.




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