PLAN. DESIGN. ENGINEER.

ABOUT US

Professional Civil & Structural Engineering Services

de Koning Group provides professional civil engineering and structural engineering design and drafting services throughout Muskoka, Bracebridge, Huntsville, Muskoka Lakes, Georgian bay, bala, lake of bays, parry sound, simcoe county, algonquin highlands, haliburton and Ontario communities. We support residential, commercial, and waterfront projects with comprehensive planning, architectural design, and structural engineering expertise.

Our team of experienced structural and civil engineers in Muskoka and Ontario delivers practical, code-compliant solutions tailored to each project’s unique site conditions and development goals. From land use planning, municipal permitting, and site evaluation to detailed structural and civil construction drawings, we provide the expertise needed to move residential, commercial, waterfront, and boathouse projects forward with confidence.

At de Koning Group, we are recognized for Muskoka’s leading engineering services, combining precision, integrity, and long-term value. Our solutions ensure structural reliability, regulatory compliance, and efficient construction, making us the preferred choice for boathouse engineering, cottages, docks, and custom waterfront structures throughout Muskoka and Ontario.

WORK WITH US

Our Services

Two people examining an architectural blueprint at a desk, with a black phone and a computer screen visible.

  • Full-Service Land Use Planning & Development Approvals

    At dKG, we provide comprehensive land use planning services to support your project from concept to municipal approval. Our team delivers professional planning design, drafting, and regulatory coordination to ensure your development moves forward efficiently and in compliance with local requirements.

    Our Planning & Approval Services Include:

    • Land Use Planning & Development Consulting

    • Planning Design & Technical Drafting

    • Minor Variance Applications

    • Zoning By-Law Amendments

    • Municipal By-Law Amendments

    dKG demonstrates proven expertise in navigating complex municipal approval processes across Ontario. We work closely with property owners, developers, architects, and municipalities to prepare complete, accurate submissions that meet zoning regulations, planning policies, and engineering standards.

    From minor variances to full zoning amendments, our team ensures your project is strategically positioned for approval.

PLAN

Construction worker inside a building under construction, holding blueprints and looking at them, surrounded by wooden framing and exposed ceiling joists.

  • Architectural & Custom Design Services

    We provide professional architectural design and custom building design services for residential and waterfront projects of all sizes. Whether you are building new, renovating, or expanding, our team delivers detailed plans and technical drawings tailored to your vision and local building requirements.

    Our Design Services Include:

    • Custom Home Design

    • Cottage Design & Renovations

    • Boathouse Design

    • Boatport Design

    • Garage Design

    • Deck Design

    • Dock Design

    From luxury homes to waterfront structures, we create functional, build-ready designs that align with municipal regulations, zoning requirements, and structural engineering standards.

DESIGN

Three men standing in a room looking at a rolled-up blueprint held by one of them, all are dressed casually in dark clothing.

  • Structural & Civil Engineering Design Services

    Our team brings extensive experience in structural and civil engineering design for residential, commercial, and waterfront construction projects across Muskoka and Ontario. We provide detailed engineering analysis, site grading and drainage design, permit-ready drawings, and construction documentation to ensure every structure and site is safe, efficient, and built to last.

    Our Engineering Expertise Includes:

    • Structural Engineering Design & Analysis

    • Structural Steel Design & Fabrication Support

    • Steel Pile Dock & Foundation Design

    • Steel Connection Detailing & Shop Drawings

    • Light Wood Framing Design
      Timber & Timber Frame Structural Design

    • Timber Connection Detailing & Shop Drawings

    • Concrete Foundation Design

    • Slab-on-Grade Foundation Engineering

    • Helical Pile Foundation Design

    • Engineered Fill & Soil Support Solutions

    • Site Grading & Drainage Design

    • Stormwater Management Solutions

    • Structural & Civil Permit Drawings

    We work closely with architects, contractors, developers, and municipalities to provide engineered solutions that meet Ontario Building Code requirements, municipal standards, and site-specific conditions.

ENGINEER

EXPLORE OUR SERVICES

Plan • Design • Engineer - Adaptive Engineering Solutions throughout muskoka and ontario

At de Koning Group, we plan, design, and engineer adaptive solutions tailored to the unique demands of every residential, commercial, and waterfront project. Our integrated approach combines land use planning, architectural design, civil engineering, and structural engineering expertise to deliver efficient, code-compliant, and permit-ready construction drawings.

From initial concept development through final construction and municipal approvals, we guide clients step-by-step through the design, permitting, and engineering process. Our team proactively identifies challenges, resolves complex structural, site, and waterfront constraints, and develops flexible solutions that adapt to evolving project needs.

Focused on precision, collaboration, and long-term performance, we provide innovative engineering solutions in Muskoka and Ontario that maximize structural integrity, regulatory compliance, and long-lasting value for homes, cottages, docks, boathouses, and commercial developments.

OUR PROJECTS
Outdoor metal staircase attached to a rocky cliff, with several landings and railings, ascending upward against a cloudy sky.
Interior of a building under construction with exposed wooden framing, stairs, and large windows for natural light.
A dock under construction with metal beams extending into a calm body of water during sunset, with a boat, construction equipment, and trees in the background.
Exterior of a black two-story restaurant with glass front, wooden steps, and red Adirondack chairs, surrounded by trees and parked vehicles, under a clear blue sky.

Professional Engineering Firm located in Port Carling, Ontario

de Koning Group is a trusted engineering and design firm serving Muskoka and Ontario communities. We provide expert guidance throughout every stage of your project, from planning and design to structural engineering and construction documentation.

  • We provide professional engineering, civil engineering, land use planning, architectural design, and structural engineering services to clients across Ontario.

    Operating from our headquarters in Muskoka (Port Carling), we proudly serve residential, commercial, waterfront, and development projects throughout the province, including major Muskoka communities such as Bracebridge, Gravenhurst, Huntsville, Lake of Bays, Bala, Port Carling, and the Township of Muskoka Lakes. We also support projects in surrounding Ontario regions - extending our services to homeowners, developers, architects, and contractors across Muskoka, Simcoe County, Parry Sound, Georgian Bay, and beyond.

    From initial land use planning and architectural design through civil and structural engineering analysis to complete, permit‑ready documentation, our team ensures every project stage is efficient, compliant, and build‑ready and tailored to each site’s unique conditions and municipal requirements.

EXPLORE OUR SERVICES

  • de Koning Group showed highly professional urgency and efficiency in producing Engineering Inspection letter and Drawings which matched the expediency required for the foundation work to be installed! I would highly recommend using their services to anyone in the Muskoka region!

    Douglas Wilson

  • de Koning Group P.Eng, Planners, Designers & P. Eng. - Professional Office. Port Carling, Ontario. Sometimes, just sometimes, you cross paths with professionals that do what they say that complete assignments with clarity and commitment without any fuss or grandstanding. Recently we completed a project in Muskoka, requiring a multi disciplinary approach. de Koning P.Eng not only exceeded our expectations , but delivered the results which we could count on and within budgeted timelines. Well Done! 

    Hy Ackerman, Hymo Investments Inc - Director Rue de Lux , Luxury Rentals 

  • We've had the pleasure of working with de Koning Group on several projects, including the engineered drawings for our own home, and we couldn't be happier with their work. Their attention to detail and commitment to quality really shine through in every drawing they produce. It's clear they take pride in what they do and it makes a huge difference in the construction process. One of the best things about working with de Koning Group is how easy they are to get in touch with. They're always just one phone call away, which makes everything so much smoother when you need quick answers or adjustments. The team is professional, friendly and incredibly reliable, exactly what you need when working on construction projects. We always recommend de Koning group to our clients and partners because we know they deliver top-quality work every time! We're excited to continue collaborating with them on future projects.

    Sheldon & Holly - SMC Construction

  • Fantastic team. Thorough explanations. Timely work. I've been very happy and look forward to more projects together.

    Harp Athwal

  • The de Koning Group did a great job on our house plan. They were quick and captured everything we wanted with few revisions needed.

    Jaimy Hunt

  • We work closely with the amazing staff at the De Koning Group for all our steel dock construction projects. Nick and his staff are always available to answer questions and they provide amazing service in an extremely timely manner. We have nothing but great things to say about all the staff, everyone is a pleasure to work with.

    Tracey Brown - BROWN STEEL DOCKS LTD

  • Great service, friendly staff will use them again!

    Aimee Sloggett

  • Innovative building solutions, quick turn around and friendly knowledgeable team! Thanks again Nick for your expertise!

    Damien Burke - Burke Custom Homes

  • Nick was very receptive when I first called him about our project and agreed to take us on as clients even though they were in a very busy period. He did not let us down! He assigned one of his very knowledgeable employees to work with us. Within a few days, Mason provided us with a first draft of the design, and continued to support us during the subsequent revisions and the construction, helpfully suggesting alternatives to simplify our build. Nick was always available to finalize, approve and seal drawings and reports when they were needed to meet our deadlines. His admin staff were also wonderful! Great experience!!!

    Mireille Lepage

  • Great experience, would recommend this firm always.

    Adam Ochshorn

  • Good local structural engineer.

    Scott Petrie