
Inspiring, Dynamic
3400 at CityLine is a new Class A office building located right next to Richardson’s well-known CityLine district. Strategically designed for dynamic and active companies seeking a progressive work environment for a rising generation of innovative young professionals.

Connected, Accessible
Located in one of the most desirable mixed-use settings, CityLine features over 28 dining options, hotels, multifamily, unique social events and a lively outdoor atmosphere. 3400 at CityLine is situated immediately off of I-75/190 and is within walking distance to the DART Orange & Red light rail line.
Buddy Bones is back and ready for Christmas! 🎄 To start off, he’s ready to donate some winter wear to our 3400 Coat Drive! Don’t forget to help him out. ☺️💀 #3400atcityline #buddybones #coatdrive #minniesboutique
We hope everyone enjoyed Thanksgiving with their loved one! Happy Thanksgiving from 3400 at CityLine 🍂 #3400atcityline #thanksgiving
We are so excited and getting in the holiday spirit at 3400 at Cityline! We’re already in love with this piece 😍 #3400atcityline
Happy Veterans Day ❤️🤍💙 thank you to all who have served and are serving! 🇺🇸🙏🏼 #3400atcityline #veteransday
Congratulations to Danielle for winning the crock-pot and goodies for our food drive raffle! 🎉🙏🏼 and again a HUGE thank you to everyone who donated! We could not have helped out the community without you all. #3400atcityline #thanksgivingfooddrive #minniesfoodpantry
We want to say a HUGE thank you to everyone who donated and made this possible! 3400 at CityLine donated 408 lbs of food to Minnie’s Food Pantry today! That will go to help a LOT of families, especially for Thanksgiving, and we are so happy that our building was able to help out our community. We couldn’t have done this without everyone’s participation! 🙏🏼 #3400atcityline #minniesfoodpantry #thanksgivingfooddrive
We have LOVED having the Bones family with us this month but, unfortunately, it is time for them to leave the land of the living to return to the land of the dead. It’s only a bye for now though as we will keep their memory alive. Who knows, maybe they can pay us a few visits until next October. 🫣😜💀 we hope everyone has enjoyed having them here with us as much as we have! ☺️ #3400atcityline #mrbones #mrsbones #wheresbones
The WINNERS of Suite 250’s Halloween Fun! 🏆🫣 #3400atcityline #bestcostume #bestdecoration
Suite 250 knows how to do Halloween! We love to see them go all out. 💀🎃👻 #3400atcityline #happyhalloween
Mr. and Mrs. Bones decided to attend a poker themed Halloween party today! Mr. Bones went all in and even threw in a leg. I wonder who won?! ♣️♥️♠️ #3400atcityline #mrANDmrsbones #wheresbones #happyhalloween
“Bones Ross” is in the building today! Don’t forget to leave him a little note on his masterpiece! 😜💀🎨 #3400atcityline #mrbones #wheresbones
We had “Bones” Lightyear buzzing around 3400 today! I wonder what his costumes will be tomorrow and Thursday?! 🫣💀 #3400atcityline #mrbones #wheresbones