Bridal Chateau: a second-floor gown room on the Target-and-Costco stretch of Route 10

A second-floor shop at 136 Route 10 in East Hanover, carrying Jovani, Terani, Tarik Ediz and Tiffany Designs for Hanover Park and Whippany Park prom.

Bridal Chateau is upstairs. The address is 136 Route 10 West, East Hanover, second floor — the retail building whose ground floor holds a UPS Store, in the run of storefronts sitting in front of Target at 130 Route 10 and Costco at 156, directly across the highway from the Novartis campus at 59 Route 10. Leasing material for the building describes roughly 5,800 square feet of second-floor retail and office space with high ceilings and a lot of windows. That is the room you are climbing to, not a mall storefront you can see from the road.

The address matters more than usual here, because the store moved and the internet has not caught up. The shop’s own Instagram bio lists 136 NJ-10, 2nd Floor. Its website, its Yelp page and the East Hanover Partnership business directory all still show 320 Route 10 West, a different building down the same road. Call (973) 585-7700 before you drive out, and put 136 in the GPS, not 320. Route 10 is divided through this part of Morris County, so being on the westbound side is the difference between pulling in and looping back.

Four prom and evening labels are confirmed on their brands’ own retailer locators: Jovani, Terani, Tarik Ediz and Tiffany Designs. That is an evening-gown lineup more than a teen-trend lineup — Terani and Tarik Ediz are the kind of racks a senior and her mother can shop on the same visit, which fits a shop whose main business is bridal. The store describes itself as covering wedding, evening, prom, sweet sixteen, quinceañera, bat mitzvah, flower girl and mother-of-the-bride and -groom dresses. A New Jersey Bride listing for the shop says it specializes in larger sizes; we could not confirm the size range independently, so ask on the phone if that is the deciding factor.

The schools closest to the door are Hanover Park High School, on Mount Pleasant Avenue about two miles off Route 10, which draws from East Hanover and Florham Park, and Whippany Park High School in Whippany, the other school in the Hanover Park Regional district. Livingston is over the township line to the east. None of these students are short on options — Jovani’s own New Jersey retailer list names stockists in Livingston and out in Mine Hill — so the argument for this one is proximity and a small upstairs room rather than a warehouse floor.

Two scheduling notes, both from listings rather than from the store directly: Saturdays show as appointment-only or closed, and Sunday hours run 11 to 4. A Sunday appointment is worth knowing about if weekday afternoons are impossible. Confirm by phone, since the same listings carry the old address.

If you are making the drive anyway, the surrounding half-mile absorbs the rest of an afternoon: Costco and Target on either side, Hanover Commons at 240 Route 10 with Marshalls, Saks Off 5th, Home Depot and Dick’s Sporting Goods, an REI, and the AMC East Hanover 12. New Jersey proms cluster in May and early June, which means January through March is when the good stock is still hanging and the alterations calendar is still open.