HL Engineering focuses on sustainable civil engineering solutions within the urban realm. With a keen understanding of municipality permitting requirements, HL Engineering has provided clients with cost effective solutions to utility, roadway, and storm water challenges for developments in King County. We keep our list of clientele short in order to maintain a high level of attention towards each selected project; our project manager stays directly and heavily involved from kickoff meeting charrettes through to construction completion. HL Engineering is a registered King County Small Contractor (Certificate No. 2103).


Municipal Experts

HL Engineering’s project manager, Patrick Hansen-Lund, has twenty-five years of civil engineering experience and is licensed in the states of Washington and California. His experience includes service as a Public Works Director and City Engineer in Southern California where he gained an understanding of agency requirements and processes, followed by private sector consulting for clients on projects ranging from industrial campus site demolitions to high-rise residential towers to convention centers to single-family home developments.

Local Specialists

HL Engineering has extensive experience with the City of Seattle Street Improvement Permit (SIP) and Utility Major Permit (UMP) process for roadway, sidewalk, lighting, plaza, and utility installations, along with project experience with civil permit document processing in the cities of Bellevue, Des Moines, Issaquah, Kent, Mukilteo, Normandy Park, Redmond and Renton. The footprint of development and existing utility main capacities can be cause for unexpected civil improvements of significant size and cost, and HL Engineering can provide options and recommendations for designing projects in a manner that stay just below thresholds that trigger larger, costlier agency requirements.


Respecting the Project Vision

Most permitting agencies have adopted “green” requirements related to the treatment, detention, or conveyance of rain water from developed sites and reduction of sanitary flow on existing strained public utility systems. These requirements are intended to reverse the volume of flow sent offsite to pre-development levels to the maximum extent feasible.  HL Engineering strives to understand the vision of a project and implement civil utility features that work within the vision by matching up Code requirements with the elements of a desired site or building design. Smart solutions to Code compliance are not always obvious, but HL Engineering will ensure that the client understands the options available.



We look forward to helping you achieve your vision:

P.O. Box 81211

Seattle, WA 98108


Project Manager:    Patrick Hansen-Lund

E-mail:                          patrick@hl.engineering

Phone:                          (858) 581-0754