Can I execute the addendum electronically?

Yes. Electronic signatures are legally enforceable in the United States under the ESIGN Act (15 U.S.C. §7001) and UETA where adopted. Ensure intent, consent, attribution, and retention are captured to meet the four-part legal test for e-signature validity.

Are witnesses or notarization required?

Requirements vary by state and document purpose. Notarization is commonly needed for deeds or instruments recorded with county offices; some states require witnesses for deeds or power of attorney. Check the applicable state recording rules before execution.

What if a signer’s name differs from legal records?

Mismatched names can delay acceptance or raise validity questions. Use the full legal name and a verified signature method; if necessary, attach an identifying affidavit or supporting corporate resolution.

How do I correct a completed addendum?

Issue a new addendum or corrective amendment signed by the same authorized parties. Do not white-out or alter a signed document; instead, prepare a clearly labeled correction and obtain fresh signatures.

Can I record the addendum with county offices?

Recording rules depend on county and document type. Many recording offices accept attached supplemental documents but may require notarized acknowledgements. Confirm local clerk or recorder requirements in advance.

What evidence proves a valid electronic signature?

A robust audit trail showing signer email, IP address, timestamp, and signed document reproduction supports attribution. Stronger identity verification (SMS code, ID check) improves evidentiary weight where dispute risk is higher.

Electronic Signature
Templates
Miscellaneous
Survey Project Addendum

Survey Project Addendum

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

Survey Project Addendum

Effective Date:

Parties

Client Name Client Address Contractor Name Contractor Address

Recitals

WHEREAS, the Client and the Contractor entered into a Survey Agreement dated (the "Original Agreement") for survey and related services; and

WHEREAS, the parties now desire to amend the Original Agreement to address additional work, revised deliverables, and updated payment and scheduling terms as set forth in this Addendum; and

NOW, THEREFORE, in consideration of the mutual covenants contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

Project Identification

Project Name / ID Site Address

Scope of Work

The Contractor shall perform the additional survey services described below. Deliverables, standards, and specific tasks are set forth in the Scope of Work and shall amend the Original Agreement only to the extent provided in this Addendum.

Detailed Scope of Work

Payment Terms

The parties agree that compensation for the additional services described in this Addendum shall be as follows:

Total Additional Compensation Deposit / Retainer (if any) Payment Schedule / Milestones Late Payment Fee

All invoiced amounts are due according to the schedule above. Late payments shall accrue the Late Payment Fee described herein and the Client shall be responsible for any reasonable collection costs, including attorneys' fees, incurred by the Contractor to collect overdue sums.

Term and Termination

This Addendum commences on the Effective Date and shall continue until the completion of the additional services or until the End Date specified below, unless earlier terminated in accordance with this section.

Anticipated Start Date Anticipated End Date Notice Period for Termination

Either party may terminate this Addendum for material breach of its terms if the breaching party fails to cure such breach within the Notice Period following written notice. Termination shall not relieve the Client of its obligation to pay for services performed and reimbursable expenses incurred through the effective date of termination.

Confidentiality

Each party agrees to maintain in confidence any nonpublic, proprietary, or confidential information disclosed by the other party in connection with this Addendum ("Confidential Information") and to use such Confidential Information solely for the performance of obligations under this Addendum. Confidential Information shall not include information that is or becomes publicly available through no fault of the receiving party, is rightfully received from a third party without restriction, or is independently developed without use of the disclosing party's Confidential Information.

The obligations of confidentiality shall survive termination of this Addendum for a period of years.

Representations; Indemnity (Brief)

Each party represents that it has the authority to enter into this Addendum. The Contractor shall perform services in a professional manner consistent with industry standards. The Client agrees to indemnify and hold harmless the Contractor from third-party claims arising from Client-supplied information or instructions, except to the extent caused by the Contractor's gross negligence or willful misconduct.

Governing Law

This Addendum shall be governed by and construed in accordance with the laws of the State of without regard to its conflicts of law principles.

Entire Agreement; Amendment

This Addendum, together with the Original Agreement, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior discussions, representations, and agreements. Except as expressly modified by this Addendum, the terms of the Original Agreement remain in full force and effect. Any amendment to this Addendum must be in a writing signed by authorized representatives of both parties.

Notices

Notices required or permitted under this Addendum shall be in writing and delivered to the addresses set forth above or to such other address as either party may designate by written notice. Delivery by hand, nationally recognized overnight courier, or certified mail shall be deemed effective upon receipt.

Additional Terms

Special Conditions or Attachments

Client Name:

By:

Date:

Contractor Name:

By:

Date:

What the Survey Project Addendum Is and when it applies

A Survey Project Addendum documents agreed changes to an existing survey contract or proposal, including scope modifications, corrected legal descriptions, additional deliverables, or schedule adjustments. It references the original agreement by date and parties, identifies the specific exhibits or map sheets affected, and explains cost or timeline impacts. The addendum preserves the original contract terms except where a clear amendment is stated, and it should be signed and dated by authorized representatives of each party to create a binding record of the change.

Why add an official addendum instead of informal emails

A formal Survey Project Addendum reduces ambiguity, documents mutual consent to changed scope or costs, and creates an auditable record for invoicing, permitting, and dispute resolution. It helps preserve contract continuity and supports enforceability under ESIGN and UETA when executed electronically.

Which roles commonly prepare and approve addenda

Common users include the contracting parties who manage scope, schedule, budgeting, and on-site access for survey services.

Licensed surveyors and surveying firms who confirm technical scope, field limitations, and deliverable format changes for an existing project file.
Property owners, developers, and project managers who request added services, corrections, or expanded deliverables and must authorize cost adjustments.
Contractors and design professionals who require updated stakeout, as-built, or boundary information to proceed with construction or permitting.

Finalize signatures and dates after internal review; retain the addendum with the original contract and project records for audit and claims prevention.

Who signs and what their role represents

Surveyor

The licensed surveyor or firm that performs the work signs to accept the amended scope, confirm deliverable formats and new deadlines, and acknowledge any additional fees. Their signature allocates technical responsibility and confirms they can meet the revised schedule under professional standards and the original contract terms.

Owner / Developer

The property owner, developer, or authorized representative signs to approve the change, authorize payment or credit terms, and confirm site access. Their authorization creates the payer obligation and aligns expectations for inspections, permits, and subsequent submittals.

Core elements every professional addendum should include

A clear addendum tightly describes what changes, why they are needed, who is affected, and how costs and schedule are adjusted to prevent later disputes.

Scope

Precisely define added or removed survey tasks, distinguishing fieldwork items (control, topo, boundary) from deliverable-only changes to avoid differing expectations about site access or permits.

Deliverables

List file types, drawing sheets, coordinate systems, CAD layers, and delivery method (digital PDF, DWG, geodatabase) so the recipient and surveyor agree on the final outputs.

Schedule

State new milestones and completion dates, including dependencies like weather windows or permit approvals, and note any liquidated damages or acceptance criteria if applicable.

Compensation

Specify additional fees, hourly rates, retainers, or credit allowances and the payment schedule tied to acceptance or milestone completion to align invoicing and approval.

Site Access

Document access permissions, contact persons, utility locates, and any restrictions; lack of timely access should specify extension or extra-cost remedies.

Signatures

Require dated signatures from authorized representatives, note whether a witness or notarization is needed, and include a clause confirming the addendum is incorporated into the original agreement.

Step-by-step: drafting and executing a Survey Project Addendum

Follow a consistent, documented process to draft, review, approve, and store the addendum so it integrates cleanly with the original contract and project records.

01

Identify Change: Document what is different versus the original scope.
02

Draft Addendum: Write clear amendment language and attach affected exhibits.
03

Review Internally: Confirm pricing, schedule, and access with stakeholders.
04

Obtain Signatures: Get dated signatures, notarize if required.

Suggested digital workflow settings for e-execution

Configure your electronic signing workflow to reduce signer friction, maintain audit trails, and preserve the original contract together with the addendum.

Field	Configuration
Signature Order	Sequential or parallel, choose sequential for approvals.
Authentication Level	Email link with optional SMS code for added identity proofing.
Reminder Schedule	Automated reminders at 3 and 7 days before due.
Document Retention	Store signed PDF plus audit trail for retention period.

Typical electronic execution flow for the addendum

A standard e-signature process captures intent, consent, attribution, and retention so the signed addendum has the same legal standing as a wet-ink document.

Prepare Document: Upload addendum and map signature fields.
Send to Signers: Distribute via email link or direct invite.
Signer Authentication: Verify identity by email, SMS, or KBA as required.
Store Signed Copy: Archive PDF with audit trail and timestamps.

Technical requirements for digital completion and storage

Choose a platform that supports common file formats, strong audit trails, and configurable authentication appropriate to the document sensitivity.

File formats: PDF, DOCX, and DWG supported.
Integrations: Connectors for cloud storage and ERP systems.
Authentication: Email, SMS, or advanced methods available.

Ensure the platform provides tamper-evident signed PDFs, secure storage (encryption at rest and in transit), and export options so the signed addendum can be shared and retained with the project file.

Comparing common eSignature providers for executing addenda

Price and features vary by vendor and plan; choose a provider that meets authentication, retention, and HIPAA or industry compliance needs without exceeding budget constraints.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day trial	Varies	Varies	Varies	Varies
Bulk Send	Yes	Yes	Yes	Yes	Yes
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Key risks and potential penalties from a deficient addendum

Scope Dispute: Contract ambiguity can lead to litigation or change-order claims

Payment Delays: Unclear compensation terms delay invoicing and collections

Invalid Signature: Missing proper signer authority can void the amendment

Missing Notary: No acknowledgement may prevent recording or acceptance

Late Filing: Delays can breach regulatory or contract deadlines

Data Exposure: Inadequate storage increases confidentiality and compliance risk

Common preparation mistakes to avoid

Vague scope language that omits measurable deliverables, causing disagreements about completion criteria and payment.
Failing to reference the original contract date and exhibit numbers, which impedes the addendum’s integration with existing obligations.
Using ambiguous compensation terms such as 'additional reasonable costs' without rates or caps, creating billing disputes.
Skipping identity verification or notarization where state law or recording offices require it, leading to rejected filings.

Typical scheduling and processing expectations

Set clear internal and external deadlines for review, signature, field mobilization, and deliverable revisions to keep the project on schedule.

Response Window for Addendum:

Request signature within 10 business days to avoid schedule drift

Counter-signature Deadline:

Require returned signatures within 7 calendar days when possible

Field Access Scheduling:

Schedule mobilization within 14 days after signed authorization

Deliverable Revision Deadline:

Allow 30 days for updated drawings or data delivery

Retention Start Date:

Retention begins on the effective date or final acceptance

Real-world examples of how addenda are used

Two concise scenarios show how a Survey Project Addendum resolves scope, schedule, and deliverable issues without replacing the core contract.

Martin Properties

A residential developer needed additional stakeout points after design changes were approved

The addendum specified five extra stakeout locations and a two-week extension
This created a binding change order, enabled invoicing for mobilization, and preserved the original contract terms.

Optica Ventures LLC

A commercial lot required updated topographic mapping after utility relocation

The addendum added LIDAR delivery in coordinate system NAD83 and adjusted compensation
The surveyor confirmed deliverable format and schedule, and both parties signed electronically to record the amendment.

Practical tips for accurate and efficient addendum completion

Follow these practices to minimize back-and-forth and ensure the addendum is effective, enforceable, and easy to record with project files.

Use Clear, Measurable Language

Quantify tasks, locations and deliverables to prevent differing interpretations and simplify acceptance testing.

Reference Original Documents

Cite contract date, exhibit numbers, and any prior amendments to ensure the addendum integrates properly.

Confirm Signer Authority

Verify signatory titles and authorization to bind the party to reduce risk of invalidation.

Archive Signed Versions

Store the signed addendum together with the original contract, supporting exhibits, and the audit trail.

Frequently asked questions about Survey Project Addenda

Answers to common questions about e-signatures, notarization, signer authority, and correcting errors will help you finalize the addendum with minimal disruption.

Need help? Contact support

Can I execute the addendum electronically?
Yes. Electronic signatures are legally enforceable in the United States under the ESIGN Act (15 U.S.C. §7001) and UETA where adopted. Ensure intent, consent, attribution, and retention are captured to meet the four-part legal test for e-signature validity.
Are witnesses or notarization required?
Requirements vary by state and document purpose. Notarization is commonly needed for deeds or instruments recorded with county offices; some states require witnesses for deeds or power of attorney. Check the applicable state recording rules before execution.
What if a signer’s name differs from legal records?
Mismatched names can delay acceptance or raise validity questions. Use the full legal name and a verified signature method; if necessary, attach an identifying affidavit or supporting corporate resolution.
How do I correct a completed addendum?
Issue a new addendum or corrective amendment signed by the same authorized parties. Do not white-out or alter a signed document; instead, prepare a clearly labeled correction and obtain fresh signatures.
Can I record the addendum with county offices?
Recording rules depend on county and document type. Many recording offices accept attached supplemental documents but may require notarized acknowledgements. Confirm local clerk or recorder requirements in advance.
What evidence proves a valid electronic signature?
A robust audit trail showing signer email, IP address, timestamp, and signed document reproduction supports attribution. Stronger identity verification (SMS code, ID check) improves evidentiary weight where dispute risk is higher.

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