Septic System Design & Permitting

Professional Septic System Design for Residential Properties

Building a new home, replacing an existing septic system, or adding an accessory structure may require a septic system review and permit approval.

Mooreview Development Management provides septic system design, permit support, and site servicing reviews for residential properties throughout Ontario.

Our goal is to help homeowners navigate the approval process while ensuring septic systems are designed in accordance with applicable regulations and site conditions.

Our Services Include:

✓ Septic System Design

✓ Permit Application Support

✓ Site Evaluations

✓ Sewage System Layouts

✓ Lot Grading Coordination

✓ Site Servicing Review

✓ Contractor Coordination

✓ Municipal Submission Support

When is a Septic System Design Required?

Many rural and estate residential properties rely on private septic systems to safely treat and dispose of wastewater.

A septic system design may be required for:

New Home Construction

New homes located outside municipal sanitary servicing areas typically require a septic system.

Septic System Replacement

Existing septic systems may require replacement due to age, failure, or proposed redevelopment.

Home Additions

Adding bedrooms or increasing building size can impact septic system sizing requirements.

Detached Accessory Buildings

Guest houses, garden suites, and accessory dwellings may require septic servicing review.

Property

Redevelopment

Changes to site layout may impact septic system location and permit requirements.

Septic System Design Process

Step 1 – Site Assessment

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Review of the property, site constraints, grading, and servicing requirements.

Step 2 – Soil Investigation

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Assessment of soil conditions to determine septic system suitability.

Step 3 – Septic System Sizing and Type

Determination of required treatment and disposal capacity.

Step 4 – System Layout Design

Step 5 – Municipal Review & Approval

Step 3 – Septic System Sizing and Type

Preparation of septic system layout and permit drawings.

Step 5 – Municipal Review & Approval

Coordination of permit submissions and responses to review comments.

Common Septic System Design Considerations

Soil Conditions. The type and permeability of soil significantly impact septic system design.

Lot Size & Setbacks. Minimum separation distances must be maintained from buildings, wells, property lines, and watercourses.

Topography & Grading. Site grading and drainage patterns must be considered when locating septic systems.

Wells & Water Supplies. Required setbacks from private wells and water supplies must be maintained.

Environmental Constraints. Wetlands, watercourses, and environmentally sensitive areas may affect system placement.

Frequently Asked Questions

Do I need a permit for a septic system?

Yes. New septic systems and replacement systems typically require permit approval from the applicable authority having jurisdiction.

Can I replace my existing septic system?

Yes. Replacement systems generally require updated design information and permit approval.

Do home additions affect my septic system?

Potentially. Additional bedrooms or increased occupancy can affect sewage design flows and may require septic system review.

How do I know if my property can support a septic system?

Site conditions, lot size, setbacks, grading, groundwater, and soil characteristics all influence septic suitability.

Can Mooreview prepare septic permit drawings?

Yes. We assist homeowners with septic system design, permit support, and municipal submissions.

Can septic systems be coordinated with pools, grading plans, and lot development?

Yes. Septic system placement should be coordinated with all proposed site improvements to avoid future conflicts.

Septic System Design & Permitting

Professional Septic System Design for Residential Properties

Our Services Include:

When is a Septic System Design Required?

New Home Construction

Septic System Replacement

Home Additions

Detached Accessory Buildings

Property

Redevelopment

Septic System Design Process

Step 1 – Site Assessment

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Step 2 – Soil Investigation

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Step 3 – Septic System Sizing and Type

Step 3 – Septic System Sizing and Type

Step 3 – Septic System Sizing and Type

Step 4 – System Layout Design

Step 5 – Municipal Review & Approval

Step 3 – Septic System Sizing and Type

Step 5 – Municipal Review & Approval

Step 5 – Municipal Review & Approval

Step 5 – Municipal Review & Approval

Why Homeowners Choose Mooreview

Professional Engineer-Led

Practical Site Planning

Municipal Development Experience

Planning a Home Addition or Renovation? You may need a Septic Assessment

Common Septic System Design Considerations

Frequently Asked Questions

Reviews

Planning a New Home or Septic System Project?

Septic System Design & Permitting

Professional Septic System Design for Residential Properties

Our Services Include:

When is a Septic System Design Required?

New Home Construction

Septic System Replacement

Home Additions

Detached Accessory Buildings

Property

Redevelopment

Septic System Design Process

Step 1 – Site Assessment

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Step 2 – Soil Investigation

Step 3 – Septic System Sizing and Type

Step 2 – Soil Investigation

Step 3 – Septic System Sizing and Type

Step 3 – Septic System Sizing and Type

Step 3 – Septic System Sizing and Type

Step 4 – System Layout Design

Step 5 – Municipal Review & Approval

Step 3 – Septic System Sizing and Type

Step 5 – Municipal Review & Approval

Step 5 – Municipal Review & Approval

Step 5 – Municipal Review & Approval

Why Homeowners Choose Mooreview

Professional Engineer-Led

Practical Site Planning

Municipal Development Experience

Planning a Home Addition or Renovation? You may need a Septic Assessment

Common Septic System Design Considerations

Frequently Asked Questions

Reviews

Planning a New Home or Septic System Project?

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