What is a Token Standard?

Choosing the right standard is one of the most consequential technical decisions in a real estate tokenization project, as it determines the token’s compliance capabilities, secondary market compatibility, and long-term interoperability.

The Major Ethereum Token Standards

ERC-20 is the foundational standard for fungible tokens on Ethereum interchangeable units where each token is identical in value and rights. It is widely supported across wallets, exchanges, and infrastructure, but has no built-in compliance controls. Any wallet can receive an ERC-20 token, which makes it unsuitable for regulated security token issuance without additional compliance layers.

ERC-721 is the standard for non-fungible tokens (NFTs), where each token is unique and not interchangeable. In real estate, ERC-721 has been explored for representing individual property titles, but its non-fungibility limits its usefulness for fractional ownership where investors hold proportional stakes in the same asset.

ERC-3643 and ERC-1400: The Security Token Standards

ERC-3643, also known as T-REX (Token for Regulated Exchanges), is the leading standard for compliant security token issuance. It extends ERC-20 with an on-chain identity registry that enforces KYC verification, transfer restrictions, and jurisdictional controls at the contract level. Transfers to non-whitelisted wallets are blocked automatically; compliance is embedded in the token, not layered on top as a manual process.

ERC-1400 is an alternative security token framework providing similar compliance functionality through a modular architecture. It supports partitioned ownership useful for structures where different classes of investor hold tokens with different rights. Both ERC-3643 and ERC-1400 are used in production real estate token offerings and are supported by the major compliance and custody infrastructure providers in the market.

Why Standard Choice Matters for Real Estate Platforms

The token standard determines which secondary markets and custody solutions the token is compatible with, how compliance controls are enforced, and what tooling is available for investor registry management and reporting. A platform that issues tokens under a non-standard or bespoke framework may find that secondary market venues, institutional custodians, and compliance tooling providers do not support them.

For investors, the standard also affects how they hold and transfer their tokens. Tokens issued under widely supported standards such as ERC-3643 can be held in institutional custody, transferred on compliant secondary markets, and reported through standard portfolio management tools. Bespoke token implementations offer none of these integrations by default.

Standards and Regulatory Compliance

Regulators in the US and UAE do not mandate specific token standards, but the SEC and VARA both expect that security token issuers have adequate controls to enforce investor eligibility and transfer restrictions. Standards like ERC-3643 and ERC-1400 are specifically designed to meet these expectations; they provide the on-chain enforcement mechanism that regulators require without relying on manual compliance processes that are slow, error-prone, and difficult to audit.

Audit of the deployed smart contract implementation is required regardless of which standard is used. The standard defines the architecture; the audit verifies the specific implementation is correct and secure.

Token Standards at Node Proptech

Node Proptech issues property tokens under ERC-3643, the security token standard with the most mature compliance tooling, secondary market support, and institutional custody compatibility in the market. Every token’s transfer restrictions, investor whitelisting, and jurisdictional controls are enforced at the contract level giving investors, regulators, and the platform itself a single, auditable source of truth for compliance.