Obligations and Contracts

Foundational principles of the Civil Code of the Philippines regarding obligations, torts, damages, delays, and defective contracts.

Overview of Civil Code

Before diving into specific construction contracts, a civil engineer must understand the fundamental principles of obligations as defined in the Civil Code of the Philippines (Republic Act No. 386). These laws govern the interactions, responsibilities, and liabilities between parties.

Obligation

Article 1156 of the Civil Code defines an obligation as a juridical necessity to give, to do, or not to do.

Sources of Obligations

Obligations do not just appear; they arise from specific legal sources.

Where Do Obligations Come From?

Checklist

Nature and Effect of Obligations

The behavior of the parties involved in an obligation determines its effect, especially concerning delays and extinguishment.

Delay (Mora)

Those obliged to deliver or to do something incur in delay from the time the obligee judicially or extrajudicially demands from them the fulfillment of their obligation.
There are three types:
  1. Mora Solvendi: Delay on the part of the debtor to fulfill his obligation.
  2. Mora Accipiendi: Delay on the part of the creditor to accept the performance of the obligation.
  3. Compensatio Morae: Delay of the obligors in reciprocal obligations (like in a contract of sale).

Extinguishment of Obligations

Obligations are extinguished by:
  1. Payment or performance
  2. Loss of the thing due
  3. Condonation or remission of the debt
  4. Confusion or merger of the rights of creditor and debtor
  5. Compensation
  6. Novation (substitution or alteration of an obligation by a subsequent one)

Contracts

Contracts are the most common source of obligations in civil engineering practice.

Contract

A meeting of minds between two persons whereby one binds himself, with respect to the other, to give something or to render some service. (Art. 1305)

Essential Requisites of a Valid Contract

Checklist

Defective Contracts

Contracts may be defective and subject to annulment or modification. They are classified into four types, in order of increasing severity of the defect.

Types of Defective Contracts

Checklist

Kinds of Damages

When an obligation is breached or a tort is committed, the injured party is entitled to damages.

M-E-N-T-A-L Damages

Checklist

Liability for Building Collapse (Article 1723)

A critical provision for Civil Engineers in the Civil Code is Article 1723, which assigns severe long-term liability for structural failures.

Important

Article 1723: The engineer or architect who drew up the plans and specifications for a building is liable for damages if within fifteen (15) years from the completion of the structure, the same should collapse by reason of a defect in those plans and specifications, or due to the defects in the ground.
The contractor is likewise responsible for the damages if the edifice falls, within the same period, on account of defects in the construction or the use of materials of inferior quality furnished by him, or due to any violation of the terms of the contract.
If the engineer or architect supervises the construction, he shall be solidarily liable with the contractor.

Key Elements of Article 1723

Checklist

Key Takeaways
  • Obligations do not arise from nowhere; they must come from law, contracts, quasi-contracts, delicts, or quasi-delicts.
  • Quasi-contracts exist to prevent unjust enrichment.
  • The essential requisites of a valid contract are Consent, Object, and Cause (COC).
  • A contract lacking any of these essential elements is generally considered void from the beginning.
  • Defective contracts range from Rescissible, Voidable, Unenforceable, to Void.
  • Mora (Delay) generally requires a demand to be legally actionable.
  • Actual damages must be duly proven.
  • Liquidated damages are pre-agreed penalties, commonly seen as daily delay penalties in construction contracts.
  • Engineers/Architects and Contractors have a 15-year liability for building collapses due to design flaws, defective ground, or poor construction.
  • The lawsuit for damages must be filed within 10 years of the collapse.
  • If the engineer supervises the work, they share solidary liability with the contractor.
  • The most common and natural way to extinguish an obligation is through Payment or Performance.
  • Novation involves replacing an old obligation with a new one.