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.

Collaboration, Convenience


3400 at CityLine provides the convenience of having a full set of amenities for tenants to collaborate, connect, and take a break from their daily routines. 3400 at CityLine promotes an environment that is focused on health and wellness.

  • Onsite Food Service
  • Fitness Center
  • Pickleball Court
  • Fiction Coffee Bar
  • Tenant Lounge
  • Bike Share Program
  • Conference Area
  • Common Desk
  • Outdoor Wellness Classes
  • CityLine Shuttle Service
  • CityLine Bike Trail Access
  • Covered Parking Garage
  • Available Building Signage

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 ...

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 ...

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 ...

We had “Bones” Lightyear buzzing around 3400 today! I wonder what his costumes will be tomorrow and Thursday?! 🫣💀 #3400atcityline #mrbones #wheresbones ...

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Awards & Certifications