Who We Are


Kellermeyer Godfryt Hart, P.C. was established in April of 1985 to provide architectural and structural consulting services to building owners and managers, architects, developers, law firms, governmental agencies, and investment associations.

With over 35 years of experience and expertise, KGH’s professional staff ARE uniquely qualified to provide a broad range of services to meet the various needs of clients.

  • Professional staff of over 20 individuals.
  • Licensed Architects registered in Illinois, Indiana, Michigan,
    and Wisconsin.
  • Licensed Structural Engineers registered in Illinois.
  • Field representatives with extensive construction experience.
  • LEED Accredited and Registered Energy Professionals.
We have developed innovative means and methods to extend the serviceable life of existing buildings and structures. This philosophy has resulted in a hands-on approach to every project, resulting in many client relationships that will last a lifetime.

MID-SIZED FIRM

TECHNICAL EXPERTS

INNOVATIVE SOLUTIONS

HANDS-ON APPROACH

LIFETIME RELATIONSHIP

OUR TEAM
senior principals

MIKE J. BONICK

Senior Principal

HANS P. KIEFER

Senior Principal

MICHAEL J. LOCIGNO, JR.

Senior Principal

JEFFREY S. MARZUKI

Senior Principal

associate principals

JMG
JAMES M.
GECAN
ASSOCIATE PRINCIPAL
JNS
JAMES N.
SEO
ASSOCIATE PRINCIPAL

project managers

CPD-3
COURTNEY P.
DADABO
SENIOR ARCHITECT
ZPH
ZACHARY P.
HELFER
SENIOR ARCHITECT
JJM
JACOB J.
MELLOR
SENIOR ARCHITECT
DJW
DAN J.
WHITEHEAD
SENIOR ARCHITECT

architects/ engineers/ associates

IMG_9437
taylor j.
beck
ASSOCIATE I
TCB
tyler c.
braswell
ASSOCIATE II
GMB
georgia m.
brum
ASSOCIATE II
JRB
jonathan r.
burden
ASSOCIATE II
CEB
chloe e.
burkhart
ASSOCIATE I
DCH
delia
chang
ARCHITECT I
GAE
gwen a.
evans
ASSOCIATE II
2023 Headshot - JCH
JOSEPH C.
HARMON
ASSOCIATE I
BHH
BENJAMIN
HELMKAMP
ASSOCIATE I
JDJ
jarrell d.
johnson
ASSOCIATE III
SKA
stephanie k.
mathus
ARCHITECT I
AMO
anthony m.
oplawski
ARCHITECT I
LAS
leena
Shrestha
ASSOCIATE  III
AVA
Alberto
Valdivia
ASSOCIATE I
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