Permit, Plans & Compliance

Engineer Letters

A written engineering opinion addressing a specific question about a property, structure or building system.

What this covers

Understanding Engineer Letters

Describe the condition that needs review, who is requesting the letter and how it will be used. The engineer determines whether a site visit, calculations or other investigation is needed to support the opinion.

When engineering may be required

When to involve an engineer

An engineer may be needed when a reviewer or another project participant asks for a professional opinion. A letter is limited to the conditions and scope the engineer has actually evaluated.

Confirm the engineering scope with the professional you engage and any permit requirements with the local building department.

Common projects

Project examples

  • Answering a specific question about an observed condition
  • Documenting an assessment requested during project review
Deliverables

Documents to discuss

These documents may be relevant to the work. Agree on the deliverables with your engineer and confirm any submission requirements with the reviewing authority.

  • certification letter
  • engineer certification
  • inspection letter
  • permit letter
  • professional engineer letter
  • structural letter
Requesting a quote

What to have ready

Start with a short description. These details can help define the scope, but you do not need everything ready to request a quote.

  • The project city or county, and the property address if known
  • What you want to build, change or repair
  • How the space or site is used now and what you plan to change
  • Whether you have drawings or photos to share during follow-up
  • The status of any permit application and comments received
  • Your target dates or other scheduling constraints
Find help near me

Engineer letters near me

Choose the project location to explore local information and request a quote.

Request an engineering quote

Tell us about the project and where it is located. You do not need to know which engineering discipline applies.