Nelson Rd. Office Condos — 11.25-Acre Business Park Civil Engineering in Katy, TX
Katy · Harris County · Texas
Commercial & Retail Development
Civil engineering for an I-10 frontage office condo park in Harris County
JRH Engineering delivered complete civil engineering design for a new 11.25-acre office condo business park in Katy, Texas, with direct I-10 frontage access via a new public road. The project required TxDOT coordination for interstate access, dual-agency storm sewer approval, and a drainage strategy that protected every square foot of developable land. By selecting regional detention over an on-site pond, JRH maximized the rentable acreage from day one and accelerated the permitting timeline.
AT A GLANCE
Site civil design
Full site civil design including grading, paving, parking, and access road layout
New public road designed with TxDOT-compliant access to I-10 — the primary connectivity requirement for the business park
Floodplain fill mitigation handled entirely on-site, satisfying regulatory requirements without off-site coordination delays
Regional detention selected over an on-site pond — eliminating pond design, construction, and land consumption entirely, freeing the full 11.25 acres for development
Utility infrastructure
Water and sanitary sewer tied into the City of Katy existing municipal infrastructure
Utility connections fast-tracked in parallel with drainage and TxDOT approvals to compress the overall permitting timeline
No utility extension required — existing City of Katy infrastructure was accessible from the site
Stormwater and drainage
Regional detention credit purchased from BKDD — the single most impactful schedule decision on the project, eliminating an entire design and construction track
Storm sewer designed and approved concurrently through both BKDD and the City of Katy — parallel review kept approvals moving without holdups
Floodplain fill mitigation contained on-site, satisfying Harris County and city requirements without triggering additional agency reviews
Permitting and agency coordination
TxDOT coordination for the new public road and I-10 access — completed concurrently with city and drainage district review
BKDD and City of Katy storm sewer approvals run in parallel — no sequential waiting between jurisdictions
Floodplain mitigation resolved in design before submittal, preventing review comments that would have delayed approval
The Challenge — on an 11.25-acre site, a detention pond is rentable land you never get back
An office condo park with I-10 frontage is only as valuable as the rentable square footage it delivers. Designing an on-site detention pond would have consumed land that should be generating revenue — and would have added design time, construction cost, and a separate permitting track to the schedule. The project also required a new public road with TxDOT-controlled I-10 access, which is one of the more time-consuming approval processes in the Houston market.
JRH’s Approach — buying detention credits and running three agencies in parallel
JRH immediately identified regional detention as the right call — purchasing BKDD credits eliminated the pond entirely and put the full site to work. Floodplain fill mitigation was designed to be handled on-site, removing the need for off-site coordination. TxDOT, BKDD, and City of Katy reviews were run in parallel rather than sequentially, keeping the approval clock moving on all fronts simultaneously
The Results
01
11.25 acres fully available for development — the on-site detention pond was eliminated entirely through regional detention credits
02
TxDOT, BKDD and City of Katy approvals pursued simultaneously — no sequential review delays
03
Floodplain mitigation resolved on-site — no off-site coordination, no additional agency review
04
Frequently Asked Questions
What was the main engineering challenge on the Nelson Rd. Office Condos project?
The 11.25-acre office condo business park needed TxDOT-compliant I-10 access, dual-agency storm sewer approval, and a drainage strategy that would not consume land needed for rentable building space.
How did JRH Engineering approach the site design at Nelson Rd.?
JRH selected regional detention over an on-site pond, freeing the full 11.25 acres for development, and ran TxDOT, BKDD, and City of Katy approvals in parallel rather than sequentially.
What were the results of the Nelson Rd. Office Condos project?
JRH kept the full 11.25 acres available for development, secured TxDOT-compliant public road access to I-10, and resolved floodplain fill mitigation entirely on-site without triggering additional agency review.