DTLS Landscape Architecture

DTLS Landscape Architecture DTLS Landscape Architecture is a St. Louis-based WBE firm specializing in landscape architecture. [dtls] is a St.

Louis-based landscape architectural design and urban design firm focused on delivering innovative, imaginative and environmentally sustainable projects. We provide quality planning and design services; always striving to interweave the natural and built environment to create academic, medical and corporate campuses, streets, parks and civic spaces that are beautiful, practical and sustainable. We are a certified Women-Owned Business Enterprise (WBE) in the City of St. Louis, the State of Missouri, the State of Illinois and a Federal Women-Owned Small Business (WOSB). We are a MoDOT and MRCC Disadvantaged Business Enterprise (DBE).

A little (indoor) Friday sun today for Sue as she works through grading studies [ ]
10/09/2026

A little (indoor) Friday sun today for Sue as she works through grading studies
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Sue Wiest, one of our Founding Principals, was elevated to the Council of Fellows by American Society of Landscape Archi...
10/01/2026

Sue Wiest, one of our Founding Principals, was elevated to the Council of Fellows by American Society of Landscape Architects (ASLA) in Los Angeles at the 2026 National Conference on Landscape Architecture in September. Alongside 35 other members of the Society, this honor recognizes Sue’s decades-long contributions to the profession through design leadership, service, mentorship, and advocacy. This honor recognizes Sue’s impact on the St. Louis region, the global design stage and her peers, mentors and places of practice. She has been a crucial engine behind not only the design of many of the places we know and love, but also the places we work.

Congratulations, Sue! We can’t wait to celebrate you here in St. Louis!

Thanks to Chip Crawford for being the best Fellow Chaperone - and Congrats to him on his receipt of the Landscape Architecture Foundation Legacy Award, as well!

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StLouisASLA Chip crawford Sue Wiest

Photos 1-6 credit: ASLA / Nobile-Morris Photography
Photo 7 credit: ASLA / Lydia Thompson, ASLA

While non-native flowers will wilt and suffer in the heatwaves of late-summer, Missouri natives stay cool, calm, and col...
09/03/2026

While non-native flowers will wilt and suffer in the heatwaves of late-summer, Missouri natives stay cool, calm, and collected! (and BEAUTIFUL!)
Thanks to super-deep roots and un-be-leaf-able drought resistance, these local legends beat the summer sizzle with zero drama—and zero spike in your water bill for irrigation.
Cardinal flower, Blue Mist flower, Bidens, Rattlesnake Master, Paw Paw and their friends were showing off this morning in Ladue
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Did you know that our scope doesn’t end when the building or landscape is occupied? Our typical involvement in a project...
09/01/2026

Did you know that our scope doesn’t end when the building or landscape is occupied? Our typical involvement in a project lasts over a year past those crucial occupancy dates. Most of our landscape specifications include a year of warranty time for installed plants to lay down roots, weather through a growth season, and get the chance to grow before an owner truly takes over.
Today, Lauren and Gabe were on-site for a warranty walk at St. Louis Community College checking on plants outside of their new Transportation Education Center. This landscape introduced low-maintenance, native plantings to make the new building blend seamlessly into the mid-century campus - a welcoming environment for students to gather and learn!
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08/20/2026

We love it when a plan (errr, a courtyard!) starts to come together! After all the demo and subgrade and prep, a magical thing happens when trees and finished surfaces emerge… all of a sudden things start to look a lot like the renderings! Shout out to all the parts of a landscape we cannot see below the surface - that’s where the real work is done!
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Cheers to Raine! Thanks for your summer internship energy, your modeling prowess, the graphic and diagramming support, ...
08/13/2026

Cheers to Raine! Thanks for your summer internship energy, your modeling prowess, the graphic and diagramming support, your excellent MusicLeague comments, the bike style and your hard work! May your next year at MLA @ WASH U be exceptional - don’t be a stranger!
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Big turnout for the Great Rivers Greenway Art Party at Contemporary Art Museum St. Louis last night. This was a celebra...
08/06/2026

Big turnout for the Great Rivers Greenway Art Party at Contemporary Art Museum St. Louis last night. This was a celebration of the value Art adds to our public realm and all of the incredible partners and community that makes great - this energy is what will make the Brickline Greenway North Connector an incredible civic space!
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On-site mentorship and concrete review today at St. Louis Community College - Sue Wiest joined the team of to discuss jo...
08/05/2026

On-site mentorship and concrete review today at St. Louis Community College - Sue Wiest joined the team of to discuss jointing and next construction steps
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Summer is moving along, but we’ve been hopping over at our Olive Office! Stop by and say “hey” next time you’re in the ...
07/22/2026

Summer is moving along, but we’ve been hopping over at our Olive Office! Stop by and say “hey” next time you’re in the neighborhood checking out the goodies our neighbors Golden Gems | Retail + Lifestyle Brand, Pappy's Smokehouse, Egg Midtown, Red Flag Concert Venue (and many more!) have to offer!
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Address

3101 Olive Street
St. Louis, MO
63103

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+13145344000

Website

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