Third Street Social

Third Street Social is a scratch-kitchen, chef-driven American restaurant and bar in historic downtown Lee’s Summit, opened in 2016. It is a flagship concept of Summit Hospitality Group — the Kansas City restaurant group founded by Domhnall Molloy and Andy Lock (also behind Summit Grill, Bōru Asian Eatery, and Pearl Tavern) — and has since grown to multiple metro locations, with an Olathe, Kansas debut expanding it into Johnson County.

[!note] Seed corrections The seed address (17 SE 3rd St) and phone ((816) 524-7779) did not match any verifiable source. The official site, Yelp, and Tock all list the Lee’s Summit location as 123 SE 3rd St, Lee’s Summit, MO 64063, phone (816) 384-2123. The corrected values are used throughout this page.

Description

Third Street Social is an American restaurant and bar in historic downtown Lee’s Summit, at 123 SE 3rd Street.¹² It opened June 29, 2016 as a chef-driven, all-scratch kitchen — the third concept from the team that built Summit Grill and Bar.³⁴ The menu centers on scratch-prepared comfort cuisine: hand-cut steaks, burgers, fried chicken, soups, salads, and sandwiches, with brunch on weekends (Saturday and Sunday) and a daily happy hour.¹⁴

The owners conceived the concept after time spent in Chicago, aiming to bring a “big city” social-gathering-hall feel to a restored historic building in downtown Lee’s Summit.⁴⁵ The restaurant has been positively received in Kansas City food media as a standout in the Lee’s Summit dining scene.⁵

Beyond Lee’s Summit, the Third Street Social brand has expanded to South Plaza (5031 Main St, KCMO) and the Northland (410 NW Legacy Dr, KCMO), with an Olathe, Kansas location (206 W. Loula St.) marking the brand’s first Johnson County and Kansas-side establishment.²⁶

Ownership and history

Third Street Social is a concept of Summit Hospitality Group (also referred to in some materials as Summit Restaurant Group / Summit Group LLC), a Kansas City restaurant group founded in 2012 by Andy Lock and chef Domhnall Molloy, who previously gained experience at McCormick & Schmick’s Seafood Restaurants.²⁷ Third Street Social opened in 2016 as the duo’s third chef-driven concept, after Summit Grill and Bar.³⁴

The group’s broader portfolio has included Summit Grill (multiple locations), Bōru Asian Eatery (reimagined from Bōru Ramen Bar in 2020), Pearl Tavern (a seafood concept), the acquired Neighborhood Café (2024), and Vertice (Italian, announced September 2025).²⁸ In 2017, Lock and Molloy were named the Greater Kansas City Restaurant Association’s Restaurateurs of the Year.⁷

The Olathe expansion of Third Street Social — at 206 W. Loula St., in a former city technology office — was reported in October 2025 as “well underway,” positioned as the brand’s Johnson County debut.⁶

Menu

Last verified: 2026-06-23 · Source: Third Street Social official site — Spring 2026 menu PDF (dinner/lunch/brunch) and Happy Hour PDF · URL(s): https://thirdstreetsocial.com/wp-content/uploads/2026/04/TSS_SPRING26_WEB.pdf · https://thirdstreetsocial.com/wp-content/uploads/2026/05/TSS-HAPPY-HOUR-26_PRINT.pdf · Confidence: High · Price tier: Medium

The menu is a scratch-made, chef-driven American/Midwestern lineup organized into Starters & Shareables, Soup & Salad, Favorites, Handhelds, a rotating Seasonal section, weekend Brunch, and a substantial steak/prime-rib program. Prices below are from the Spring 2026 menu (March 28, 2026 revision) and the daily Happy Hour menu; dinner pricing is used where lunch/dinner differ.⁹¹⁰

Starters & shareables

• Deviled Eggs — house-made, cornichon pickles, brown sugar bacon ($12).⁹
• Crispy Fried Brussels & Cauliflower — jalapeño aioli, malt vinegar aioli ($15).⁹
• Pimento Cheese — Tillamook aged white cheddar, buttered crackers, Nueske’s summer sausage ($12).⁹
• Bōru Fries — sweet potato fries, pork belly, kimchi, curry-lime aioli, fried egg ($15).⁹
• Smoked Salmon Dip — house-smoked salmon, sauce gribiche, toasted focaccia ($17).⁹
• Pork Belly Burnt Ends — smoked, dry rubbed, charred BBQ, house-made cornbread ($16).⁹
• Korean Steak Tacos* — bulgogi marinated, daikon slaw, kimchi mayo ($17).⁹
• Blackened Shrimp Tacos — chili-spiced shrimp, ancho mayo, jicama slaw, cotija, habanero salsa ($16).⁹
• Creole BBQ Shrimp ($17), Nashville Hot Wings ($14), Smoked & Charred Buffalo Wings ($14), and the Social Chef’s Board of charcuterie & cheeses ($29).⁹

Soup & salads

• Bacon Iceberg Wedge — Nueske’s slab bacon, Danish blue cheese, blue cheese dressing ($15).⁹
• Chop Salad — bacon, hearts of palm, artichoke, peppadew, kalamata, cherry tomato, Romano, herb vinaigrette ($13).⁹
• House Greens ($10); Grilled Salmon “Caesar”* ($22); Korean Steak & Noodle Salad* ($24); Nashville Hot Chicken Salad ($19); house-made Soup ($9).⁹

Favorites & entrees (dinner)

• Fresh Salmon* — simply grilled or skillet-blackened, grilled asparagus, mashed Yukon potatoes, lemon-thyme beurre blanc ($30).⁹
• Crab & Shrimp Stuffed Salmon* — blue crab, brie, lemon-thyme beurre blanc ($34).⁹
• Shrimp & Grits — Creole butter shrimp, Tasso ham, cheesy grits ($29).⁹
• Fried Chicken — half chicken, mashed Yukon potatoes ($25); Fried Chicken Tenders ($20); Chicken Fried Steak ($25); Chicken Pot Pie ($23).⁹
• Braised Duroc Pork Shoulder — cheesy grits, collard greens, cornbread ($28); Third Street Meatloaf ($22); Fresh Mississippi Catfish ($24).⁹

Steaks & prime rib (signature)

• Angus Beef Filet* — potatoes au gratin, grilled asparagus, demi glace ($44).⁹
• Hawaiian Ribeye* — soy glazed, steamed rice, chilled cucumber salad ($46).⁹
• Classic Prime Rib* (served Friday & Saturday after 4pm) — slow-roasted Angus, au jus, horseradish cream; 12oz single cut ($46) / 16oz TSS cut ($49).⁹
• 45oz Tomahawk Ribeye for Two* — Certified Angus Beef, au gratin potatoes, béarnaise, chimichurri, demi glace ($110).⁹

Handhelds & burgers

• Social Cheeseburger — single ($14) / double ($17) / triple ($19); add bacon or sautéed onions ($2 each).⁹
• Animal Style Burger ($18); Dry Rub Burger ($19); Fried Chicken Sandwich ($16); Slow Roasted Prime Rib Sandwich* ($24); Grilled Chicken Sandwich ($17).⁹

Seasonal (Spring 2026)

• Sliced Angus Beef Tenderloin* — herb-smashed fingerling potato, spring vegetables, spicy tzatziki, Calabrian chili butter ($38).⁹
• Pan Seared Atlantic Salmon* — schug tzatziki, fennel-cucumber salad, grilled flatbread ($31).⁹
• Spicy Shrimp Pappardelle ($26); Calabrian Honey Ricotta Toast ($15).⁹

Brunch (weekends)

• Biscuits & Gravy (chorizo verde gravy, scrambled eggs, cheddar biscuit, $14); Classic Breakfast* ($16); Belgian Waffles ($13); Chicken Biscuit ($16); Avocado Toast* ($14); Hot Chicken Benny* ($16); Chicken Fried Steak ($18); Omelette ($13); Breakfast Tacos ($15); House Made Doughnuts ($9).⁹
• Brunch cocktails: Mimosa ($7 / carafe $26), Aperol Spritz ($12), Pickle Bloody Mary ($8), Michelada ($6), Espresso Martini ($15), Irish Coffee ($11).⁹

Cocktail program

• Signature pours include the Truman Old Fashioned (Buffalo Trace, dry curaçao, house-brandied cherries, $15), Cilantro Jalapeño Margarita ($14), Espresso Martini ($15), Blackberry Gin Cooler (Tom’s Town Gin, $13), Soccer Mom ($13), and Blood Orange Margarita ($12), alongside low-proof and zero-proof options (e.g. Dreamsicle, $9).⁹

Happy Hour (daily 3–6pm, dine-in only)

• Food: Blackened Shrimp / Korean Steak Tacos ($4), Fries / Sweet Potato Fries ($6), Pimento Burger Sliders / Fried Brussels & Cauliflower / Pimento Cheese ($8), Pork Belly Burnt Ends / Creole BBQ Shrimp ($10).¹⁰
• Drinks: domestic drafts & bottles ($4), select craft drafts & well drinks ($5), wines ($6), featured cocktails ($8 — Ruby Red Slipper, Horsefeather, The Lavender Bee, Citrus Spritz, seasonal Sangria).¹⁰

*Consumer advisory: starred items are served raw or undercooked, or contain raw/undercooked components. Gluten-free bread, buns & pasta available on request ($2 upcharge). Prices verified from the official Spring 2026 and Happy Hour menus as of 2026-06-23 and are subject to change.

Links

• Website: https://thirdstreetsocial.com
• Instagram: https://www.instagram.com/thirdstreetsocial/
• Phone: (816) 384-2123 (Lee’s Summit) — corrected; seed value (816) 524-7779 unverified

See also

• lees-summit
• Registry

Sources

1. Third Street Social — Lee’s Summit location page (official site) — https://thirdstreetsocial.com/lees-summit/ — accessed 2026-05-31
2. Third Street Social — About Us (official site) — https://thirdstreetsocial.com/about-us/ — accessed 2026-05-31
3. “Third Street Social Lives Up to the Hype in Lee’s Summit” — Feast Magazine — https://www.feastmagazine.com/dine/kansas_city_dining/article_0212ff28-6968-11e6-8986-7fdda7a45a10.html — accessed 2026-05-31
4. “Third Street Social Opens in Historic Downtown Lee’s Summit Today” — Feast Magazine — https://www.feastmagazine.com/travel/kansas-city/third-street-social-opens-in-historic-downtown-lee-s-summit-today/article_065053fa-3e03-11e6-b6e2-b3c5c1d9abf3.html — accessed 2026-05-31
5. Third Street Social — The Strother District / downtown Lee’s Summit — https://www.strotherdist.com/third-street-social — accessed 2026-05-31
6. “Kansas City eatery Third Street Social approaching Olathe opening” — Johnson County Post — https://johnsoncountypost.com/2025/10/03/third-street-social-olathe-269886/ — accessed 2026-05-31
7. “Andy Lock, Domhnall Molloy Named Kansas City’s Restaurateurs of the Year” — Feast Magazine — https://www.feastmagazine.com/the-feed/kansas_city_news/article_9756e1e0-b27c-11e7-aece-33d9800262a2.html — accessed 2026-05-31
8. Summit Hospitality Group — official site — https://summithospitalitygroupkc.com/ — accessed 2026-05-31

Footnotes

1. Third Street Social — official Lee’s Summit page. https://thirdstreetsocial.com/lees-summit/ — asserts: 123 SE 3rd St, Lee’s Summit, MO 64063; weekend brunch; daily happy hour. ↩ ↩²

2. Third Street Social — “About Us.” https://thirdstreetsocial.com/about-us/ — asserts: operated by Summit Restaurant/Hospitality Group; sister concepts (Summit Grill, Bōru Asian Eatery, Pearl Tavern); four locations (Lee’s Summit, South Plaza KC, Northland KC, Olathe). ↩ ↩² ↩³ ↩⁴

3. Feast Magazine — Third Street Social. https://www.feastmagazine.com/dine/kansas_city_dining/article_0212ff28-6968-11e6-8986-7fdda7a45a10.html — asserts: chef-driven concept after Summit Grill; opened June 2016. ↩ ↩²

4. Feast Magazine (opening coverage, 2016) — https://www.feastmagazine.com/dine/kansas_city_dining/article_0212ff28-6968-11e6-8986-7fdda7a45a10.html — asserts: June 2016 opening; Andy Lock & Domhnall Molloy; scratch comfort cuisine. ↩ ↩² ↩³ ↩⁴

5. Tock — Third Street Social reservations. https://www.exploretock.com/thirdstreetsocial — asserts: active reservations; operating. ↩ ↩²

6. Yelp — Third Street Social (Lee’s Summit). https://www.yelp.com/biz/third-street-social-lees-summit — asserts: open/active, updated May 2026; downtown Lee’s Summit (Strother District). ↩ ↩²

7. Summit Hospitality Group — official site. https://summithospitalitygroupkc.com/ — asserts: founded 2012 by Andy Lock & Domhnall Molloy (2017 GKCRA Restaurateurs of the Year); multi-concept KC group. ↩ ↩²

8. Summit Hospitality Group — portfolio. https://summithospitalitygroupkc.com/ — asserts: Summit Grill, Bōru Asian Eatery, Pearl Tavern + Third Street Social. ↩

9. Third Street Social — Spring 2026 menu (official site PDF, dinner/lunch/brunch; March 28, 2026 revision). https://thirdstreetsocial.com/wp-content/uploads/2026/04/TSS_SPRING26_WEB.pdf — accessed 2026-06-23 — asserts: full food menu and dinner pricing — Starters & Shareables, Soup & Salad, Favorites, Handhelds/burgers, Seasonal, Brunch, and the steak/prime-rib program (Angus filet $44, Hawaiian ribeye $46, classic prime rib $46/$49, 45oz tomahawk for two $110); cocktail list. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴ ↩²⁵ ↩²⁶ ↩²⁷ ↩²⁸ ↩²⁹ ↩³⁰

10. Third Street Social — Happy Hour menu (official site PDF; daily 3–6pm, dine-in only). https://thirdstreetsocial.com/wp-content/uploads/2026/05/TSS-HAPPY-HOUR-26_PRINT.pdf — accessed 2026-06-23 — asserts: happy hour food ($4–$10) and drink pricing (domestic $4, craft/well $5, wine $6, cocktails $8); confirms four locations incl. Olathe at 135 S Kansas Ave. ↩ ↩² ↩³