Peterborough & the Kawarthas · permits · 2026
Septic permits in Peterborough & the Kawarthas: who issues them, what to file
Before anything gets dug in Peterborough & the Kawarthas, a sewage system permit has to exist — and the office that issues it, the forms it wants, and the local ground rules are all knowable in one read. Here is the whole picture.
Your permit office: Peterborough Public Health’s sewage system program for the city and county. One call before you start saves every wrong guess that follows.
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Homeowner’s Guide44 pp.
Costs, permits, contractor vetting, and the owner-builder path — updated for the 2026 Building Code.
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Did you know you can design your own septic system?
Legally – as the owner, for your own property. Our designer does the Part 8 math, draws the site plan and cross-section, and fills the township forms.
Start here – free
2-minute Septic Check. Your flow, tank size, and risk level – plus what your lot is missing.
Homeowners – one project
Permit Package Builder – $99.99. Part 8 math, site plan, cross-section, filled township forms. Print and submit.
Installers + designers
Part 8 Designer Pro. Every project, every month – from $99/month.
1 Something’s wrong2 What it costs3 The permit4 Who designs it5 The paperwork6 Approval
The part nobody tells you
Designers charge $800–$2,000 just for the paperwork in these quotes.
Ontario law lets you do that part yourself, on your own property. OntarioSepticDesigner.ca turns your answers into the same 26-page package the township clerk sees every day — calculations, drawings, forms, all of it.
Who reviews your application
Peterborough Public Health administers Part 8 sewage systems for both the City and County of Peterborough — one program, one intake, which simplifies life compared to the patchwork counties. Trent-Severn waterfront files see the closest scrutiny. If anything here has changed since publication, the Authority Finder keeps the current answer by township.
What a complete application contains
1The provincial application form and schedules — the same Part 8 paperwork every Ontario office uses
2Design worksheets — daily flow, tank size, bed sizing from your T-time
3Soil evidence — test-hole logs; most offices want the holes left open
4A scaled site plan — every setback dimensioned, reserve area shown
5The cross-section — vertical clearances proven on paper
6The fee — per the current local schedule
The full piece-by-piece breakdown lives on the permit package page — it is literally the checklist reviewers use.
The local ground: what Peterborough & the Kawarthas lots deal with
Drumlin farm country south of the city builds ordinary conventional beds; the Kawartha lakes country north of it plays the cottage game — rock, water, setbacks and imported sand. Same county, two different septic worlds, one office reviewing both. What systems cost here, and the local soil story in full, is on our Peterborough & the Kawarthas septic page.
The $18,950 line that never appears on a quote
A real worked example: 3-bedroom bungalow, conventional bed. Tank supplied and set, pipe, stone, fabric, one day of machine and labour, permit allowance — $13,049 with HST. The same job quoted at $32,000. The gap is design fees, markup, and labour you may not need to buy.
Two minutes on the free checker shows the numbers your own lot generates — daily flow, tank size, risk level — before anyone quotes you.
| Step | Typical timing |
|---|---|
| Complete application filed | Day 0 |
| Review | 1–4 weeks |
| Site inspection (open test holes) | During review |
| Permit issued — construction may start | On approval |
| Pre-backfill inspection, then final | During build |
Peterborough & the Kawarthas permit questions
Who issues septic permits in Peterborough & the Kawarthas?
Peterborough Public Health’s sewage system program handles septic applications and inspections for the City and County of Peterborough.
How much does a septic permit cost in Peterborough & the Kawarthas?
Application fees at most Ontario offices run $400–$1,100 depending on system class and whether it is new or a replacement — check the current fee schedule when you call. The fee is the small line; the $800–$2,000 design paperwork is the one owners can take back.
Can I design my own septic system in Peterborough & the Kawarthas?
Yes — the Ontario Building Code lets homeowners design their own system on their own residential property, everywhere in Ontario including Peterborough & the Kawarthas. The exemption and its limits are explained on our design-your-own page.
How long does septic permit approval take in Peterborough & the Kawarthas?
One to four weeks for a COMPLETE application in normal season, longer in spring rush. Incomplete packages are the usual delay — the review clock only starts when every document is in.
File a package that passes the first read
The $99.99 builder produces the complete application Peterborough & the Kawarthas’s reviewers expect — forms, worksheets, site plan, cross-section, every number consistent.