Information on this website is for planning and educational purposes only. Final requirements must be confirmed with the appropriate municipality, county, conservation authority, OMAFRA/provincial review process, builder, designer, engineer, and approval agencies. LandLogic does not issue permits, guarantee approvals, or replace official regulatory review.
Why Barn Projects Get Delayed or Rejected
Barn building projects in Ontario can be delayed or rejected for a number of reasons. Understanding these common issues before you start can save you significant time and money.
Most Common Rejection Reasons
MDS II Violations
The proposed barn doesn't meet Minimum Distance Separation requirements from neighbouring dwellings or sensitive land uses.
Setback Issues
The barn or manure storage is too close to wells, watercourses, property lines, or road allowances.
Inadequate Manure Storage
Insufficient storage capacity for the proposed livestock numbers, or storage design doesn't meet O. Reg. 267/03 requirements.
Incomplete or Incorrect NMS
Missing information, calculation errors, or documents that don't meet OMAFA requirements.
Site Constraints
Environmental features, floodplains, or other site limitations that weren't identified during planning.
Nutrient Unit Miscalculations
Incorrect livestock conversion factors or failure to account for all nutrient sources on the property.
Missing Municipal Approvals
Building permit, zoning, or site plan issues that weren't resolved before starting the nutrient management process.
How to Avoid Rejections
Work with an experienced nutrient management consultant
Check MDS requirements before finalizing your site plan
Confirm all setbacks are met before starting construction
Ensure your NMS/NMP is complete and accurate before submission
Address municipal requirements early in the process
Start the planning process well before your construction deadline
What Does It Cost If I Need One?
Typical NMS and NMP pricing depends on the type of project. A simple new barn NMS is usually less involved than a full NMS + NMP package with multiple fields, manure sources, or storage complexity. Straightforward new barn NMS projects typically range from $750–$950 + HST.
Frequently Asked Questions
Do I need an NMS to build a barn in Ontario?
What are nutrient units and how does this relate to livestock?
When do I need both an NMS and an NMP?
How long does approval of a NMS or NMP take?