Builder registration

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Register a new site (SNIN)

To register a new site with us for Buildmark warranty cover or for building control, complete a Site Notification and Initial Notice (SNIN ) form.

SNIN form

Completing your SNIN form

Please submit your SNIN form as far in advance of starting work on site as possible but at the latest:

Site type Weeks before start date
Standard, non-hazardous sites 4 weeks
Hazardous or non-traditional sites 8 weeks

Submitting your completed SNIN

You can send your completed forms to the address below or if you are an Extranet user, you can upload your SNIN directly . Please go to 'Collaborative Working' on the Extranet and use the 'Non Site Specific' link.

NHBC, NHBC House, Davy Avenue, Knowlhill, Milton Keynes, Bucks MK5 8FP

What happens next?

The process is as follows:

  1. Step 1 You submit your SNIN form
  2. Step 2 We receive your SNIN and inform all relevant NHBC teams
  3. Step 3 We send you a product plot schedule (PPS) for you to complete
  4. Step 4 You check the PPS, complete the details of all plots and return
    it to us
  5. Step 5 We receive your completed PPS and issue a firm quotation
  6. Step 6 You return the signed quotation and payment for plots you wish to register at that time (at least 4 weeks before start of construction)
  7. Step 7 We receive your signed quotation and payment and issue documentation to you

Need help?

If you have any questions please call our customer services team on

0844 633 1000 and ask for ‘Customer Services’ or email cssupport@nhbc.co.uk

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Check register

Contact us

Call 0844 633 1000
Ask for ‘Customer Services
or email us

NHBC Portal

Sign up to use the NHBC Portal

Any questions?

Here are some frequently asked questions

See questions