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Rolls-Royce transportation is included in the package, and the venue says so on its own ballroom page. That is not a standard Long Island inclusion and it tells you what Sand Castle is selling. The other number on its own site is less charming: a minimum of 150 guests, stated twice, which quietly rules out anything small. The property runs to four private acres at 505 Franklin Avenue in Franklin Square, with a waterfall and pond ceremony site outdoors and a Four Season Glass Atrium indoors, and it hosts one wedding at a time.
The 150 guest minimum is the number that should decide whether you tour this venue, because it is first party, it is stated twice, and it sets the floor of your bill before anyone discusses menus. The $150 per person on two marketplaces is credible as a starting point and carries no published service charge with it, which means the real figure is higher by an amount nobody will tell you. Eventective's $7,500 for 50 guests cannot be squared with the venue's own minimum and should be ignored.
We read the venue's own home, about, pricing, ballroom and vendors pages plus its Knot, WeddingWire, Here Comes The Guide, PartySlate and Eventective listings on 10 September 2026. Checked September 2026. First party means the venue’s own site or rate card; marketplace means The Knot, WeddingWire, Zola, Wedding Spot or similar. Nothing here is averaged or estimated.
Our source file listed sandcastleny.com; the working official site is sandcastlevenue.com. The venue's own thirty years claim conflicts with PartySlate's almost twenty, acreage is given as four first party and five elsewhere, and the outside vendor policy is contradicted three ways.
Sand Castle publishes exactly one figure about itself, and it is a minimum. The about page states a minimum reservation requirement of 150 guests and the ballroom page repeats it. No maximum, no square footage, no per person rate, no fee percentage.
A 150 guest floor is high for Nassau County. It means a wedding of 90 is not a conversation this venue wants to have, and it means a couple with a list of 120 will be paying for thirty people who do not exist. That is worth understanding before you fall for the waterfall.
The pricing page makes the position explicit. It is a lead capture form asking you to fill in your details to gain access to the pricing guide, and it displays no numbers at all. The ballroom, about and cuisine pages carry no rates either, and no rate card PDF is publicly linked. So the price is deliberately private, and the guest minimum is deliberately public.
Here Comes The Guide lists packages from $150 per person and up, describing them as all inclusive and varying by day of week, season and guest count. It says the package covers exclusive use of the venue, dressing suites with a buffet station and mini bar, an indoor or outdoor ceremony space, in house catering and in house alcohol.
Eventective independently lists packages starting at $150 per person, which is a useful corroboration, and then lists a base package of $7,500 for 50 guests, which is not. A fifty guest base package cannot coexist with a published 150 guest minimum. We are recording the $150 and treating the Eventective base figure as unreliable.
WeddingWire adds a $500 starting site fee applying in peak and off peak, and a bar service starting price of $10 per person. It says the site fee covers the bridal suite, chairs, china, cleanup, event planning, flatware, glassware, lighting and sound, linens, parking, setup, tables and transportation. Peak season runs May through October, with off peak covering January to March and November to December. The Knot and Zola publish no price for this venue at all.
No service charge percentage, administrative fee, maitre d' fee, bridal attendant fee or tax treatment appears on any of the six sources we read. On a venue selling at $150 and up per head, that is the largest unknown in the budget.
Here Comes The Guide says catering is in house only, alcohol is in house only, and outside vendors are not permitted. WeddingWire says outside vendors are permitted. Eventective says outside catering is allowed. Those three statements cannot all be true.
The venue's own vendors page is headed as a list of recommended Long Island wedding vendors, states no policy and names no outside vendor fee. So there is no first party text to arbitrate. If you have a photographer, a band or a planner you intend to bring, this is the question that decides whether the venue works for you, and it needs a written answer rather than a reassuring one on the phone.
One published restriction is clear and easy to miss. Here Comes The Guide states that amplified music is permitted indoors only. If you were picturing a band by the waterfall, check that first.
The venue's own site claims three decades of hosting weddings and, on the about page, over thirty years of experience. PartySlate says almost twenty years. Nobody publishes a founding year, an architect, an original name or a building history, and WeddingWire's Historic Building and Mansion tags carry no date behind them. We are not publishing a year for this venue.
The acreage disagrees too. The venue says four private acres. PartySlate and Eventective both say five. And capacity is unresolved in the usual way. The Knot says 300 plus, WeddingWire says up to 500, PartySlate says 500 seated and 500 standing, and Eventective says 450 maximum. Here Comes The Guide declines to give a figure and tells you to ask the venue.
None of these gaps is disqualifying on its own. Together they describe a venue that controls its published information tightly, which is consistent with putting the price behind a form.
The Four Season Glass Atrium is the indoor ceremony space, and it is the reason the outdoor waterfall site works: glass over your head means a wet Saturday moves rooms rather than cancelling a plan. The venue does not publish that as a rain policy, and there is no stated deadline for making the call, but the room exists.
The Grand Ballroom is described with high ceilings, stone pillars, a centre chandelier and an open dance floor. There are two private bridal suites. WeddingWire adds a foyer, an atrium, a gazebo, a veranda and a skylight, and PartySlate and Eventective describe an outdoor marble topped bar set against the waterfall.
The Knot's description adds two theatrical touches the venue itself does not advertise: a martini bar that descends from the ceiling, and a twelve dessert cart presentation. Both are the sort of thing to see photographed before you decide how you feel about them.
Exclusivity is the strongest claim on the page and it is well supported. The venue states it hosts only one wedding at a time with exclusive use of the estate, and its ballroom page repeats that as a single event per day policy. The Knot, WeddingWire, Here Comes The Guide and PartySlate all corroborate it.
This works for a couple with a real guest list who wants private grounds, a waterfall ceremony, an all inclusive package and no other wedding on the property. The inclusion list is broad, the exclusivity is confirmed by five sources, and the setting is genuinely private for an inland Nassau address.
It works badly for a small wedding, for a couple who wants to compare prices before committing an email address, or for anyone bringing their own vendors without first getting the policy in writing.
Four questions for the first meeting. What is the per person rate for your exact date and day of week. What service charge or administrative fee applies on top of it. Whether outside vendors are permitted, since three sources disagree. And what the maximum seated capacity of the ballroom actually is, since the published figures run from 300 to 500.
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A 5,500 square foot ballroom for 400, a second room at 220, two dedicated cocktail spaces, and no published price of any kind.
A Glen Cove hall marketing itself for Indian and multicultural weddings, with a $55 to $150 per person range published only on Eventective.
Three named ballrooms on Old Country Road with a 50 guest floor, and per person figures that swing from $95 to $150 depending on the marketplace.
A Bethpage hall with four rooms, an on site chapel and over 550 seats, whose package pages list every inclusion and publish no price at all.
A 1950 Northport catering hall of roughly 9,700 square feet that WeddingWire says charges no site fee and runs one wedding at a time.