MySepticCheck

Selling a home with a septic tank?

Organise the key information, spot gaps early and create a clear seller information pack before conveyancing gets complicated.

Start my checkLog in

Information and readiness tool only. Not a compliance certificate, inspection report or legal advice.

Preparing to sell?

Follow the practical steps for gathering septic tank details and passing information to your buyer.

Selling a house with a septic tank
View a sample seller packFor estate agents
Secure accountSaved properties and private evidence
3 levelsGreen / Amber / Red readiness
1 pathwaySeller pack to professional help

Why get prepared before you sell?

Selling a property with a septic tank or sewage treatment system can mean extra questions during conveyancing.

Environment Agency guidance for England requires information about the sewage treatment system to be passed to the new operator when a property is sold.

This can include information such as:

  • what type of system you have
  • where the system and discharge point are located
  • details of changes made to the system
  • how the system should be maintained
  • maintenance records, where available

MySepticCheck helps you get this information organised before the questions start.

Start my property check

Designed for properties in England. MySepticCheck is an information and readiness tool only. It does not provide a compliance certificate, physical inspection or legal advice.

How MySepticCheck works

A simple step-by-step process to help you get your off-mains drainage information organised.

1. Tell us about your property Answer straightforward questions about your septic tank or sewage treatment system.
2. Add what you know Record system details, maintenance information and supporting evidence where available.
3. See your readiness result MySepticCheck highlights your information using a Green, Amber or Red readiness result.
4. Create your Seller Pack Bring your information together into one clear record for your property sale.
Start my check

Your MySepticCheck Seller Pack

Bring the key information about your property's off-mains drainage together in one clear, organised record for your property sale.

What your pack brings together

  • Property and drainage system details
  • Septic tank or sewage treatment plant information
  • Discharge and system location information
  • Maintenance and emptying history
  • Supporting evidence and documents you provide
  • Information gaps highlighted during your check
  • Your Green, Amber or Red readiness summary

Seller Information Pack

£29.99

One property

Start my check

MySepticCheck organises information supplied by you and provides a readiness indication. It is not a compliance certificate, survey, physical inspection or legal opinion.

Understand your readiness result

MySepticCheck helps you see at a glance whether the information you have provided appears complete or whether something may need further attention.

● GREEN
Information looks ready

Your answers indicate that the key information requested by MySepticCheck is in place.

● AMBER
Something may need checking

Some information is missing, unclear or may benefit from further investigation.

● RED
Further attention may be needed

Your answers indicate an issue or information gap that may need professional advice.

Green, Amber and Red are MySepticCheck readiness indicators only. They are not regulatory compliance ratings or guarantees that a drainage system complies with environmental, planning or other legal requirements.

Frequently asked questions

A few common questions about selling a property with off-mains drainage.

Is MySepticCheck a septic tank compliance certificate?

No. MySepticCheck is an information and readiness tool. It helps you organise the information you provide and identify areas that may need further attention. It does not certify regulatory or legal compliance.

Does MySepticCheck inspect my septic tank?

No. MySepticCheck is a digital service and does not physically inspect your septic tank, sewage treatment plant, drainage field, pipework or discharge point. A professional inspection may still be appropriate in some circumstances.

What if I don't know some of the answers?

That's fine. Enter the information you do know. One of the purposes of MySepticCheck is to highlight missing or unclear information so you know what may need investigating before your sale progresses.

Why do I need septic tank information when selling my home?

Environment Agency guidance for England requires certain information about the sewage treatment system to be passed to the new operator when a property is sold. MySepticCheck helps you gather and organise relevant information.

What do Green, Amber and Red mean?

They are MySepticCheck readiness indicators based on the information you provide. Green suggests the key requested information is in place, Amber highlights something that may need checking, and Red highlights an issue or information gap that may need further attention. They are not regulatory compliance ratings.

Can I use MySepticCheck anywhere in the UK?

MySepticCheck is currently designed for properties in England. Environmental rules and guidance differ in Scotland, Wales and Northern Ireland.

Start my check

Selling a property with off-mains drainage?

Off-mains drainage is broader than septic tanks. A property may use a septic tank, sewage treatment plant or cesspool, and each type needs different information when you sell.

Septic tank Normally discharges treated liquid to a drainage field in the ground.
Sewage treatment plant Treats sewage before a qualifying discharge to the ground or surface water.
Cesspool A sealed holding tank with no discharge that needs regular emptying.
Read the off-mains drainage guide

Helpful septic tank and off-mains drainage guides

Clear, practical information for property sellers in England.

NEW · FREE What drainage system do I have? Use simple clues to identify whether it is likely to be a septic tank, treatment plant or cesspool. NEW · FREE Seller readiness check Get an instant Green, Amber or Red snapshot of the information you have ready for your sale. No septic tank paperwork? Learn where to search, what information matters and how to rebuild a useful seller record. Free septic tank rules checker Answer a few questions and see which rules may apply to your property. Buying a house with a septic tank What buyers should ask for—and how to purchase a Seller Pack for the property. Septic tank cost calculator Estimate UK costs for emptying, inspections, repairs and replacement. New septic tank installation cost See 2026 guide prices for a new tank, replacement work and drainage fields. Selling with off-mains drainage Identify your system and the information a buyer may need. Selling a house with a septic tank What to prepare, what to disclose and where to begin. Selling a house with a sewage treatment plant What to gather, what to pass on and when to seek advice. General Binding Rules explained Understand the main rules for small sewage discharges in England. Septic tank selling checklist Use a practical checklist to organise your property information. Septic tank inspection or survey Understand when a specialist septic system inspection may help during a sale. Documents for a house sale See which records and written information are useful to gather.
Browse all drainage guides

Get organised before your property sale progresses

MySepticCheck helps property sellers in England bring their off-mains drainage information together, identify gaps and create a clearer record before conveyancing gets complicated.

✓ Designed for properties in England ✓ Green / Amber / Red readiness ✓ One organised Seller Pack
Start my check

Built around current Environment Agency guidance for small sewage discharges in England. Guidance reviewed August 2026.