Company: HPP
Filing Date: 2025-02-26
Form Type: POS AM
Source: 0001193125-25-035303
Chunk: 2

Company: Hudson Pacific Properties, Inc.
Filing Date: 2025-02-26
Form: POS AM
Chunk 2
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 may determine.

EXPLANATORY NOTE

Post-Effective Amendment No. 1 to the Registration Statement on Form S-3ASR (File
No. 333-278965 and 333-278965-01) (“Post-Effective Amendment No. 1”) of Hudson Pacific Properties, Inc. (the
“Company”) and Hudson Pacific Properties, L.P. (the “operating partnership”), was filed because the Company expected it would no longer be a “well-known seasoned issuer” (as such term is defined in Rule 405 of the
Securities Act of 1933, as amended) when it filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2024. Accordingly, the Company and the operating partnership filed Post-Effective
Amendment No. 1 for the purpose of including disclosure required for a registrant other than a well-known seasoned issuer, identifying the securities being registered, registering a specific amount of securities and paying the associated filing
fee.

This Post-Effective Amendment No. 2 (“Post-Effective Amendment No. 2”) to the Registration Statement on Form S-3 (File No. 333-278965 and 333-278965-01) (the “Registration Statement”) is
being filed using EDGAR submission type POS AM in order to convert the Registration Statement to the proper EDGAR submission type for a non-automatic shelf registration statement.

This Post-Effective Amendment No. 2 contains a base prospectus, which covers the offering, sale and issuance of up to $1,000.0 million of the
Company’s common stock, preferred stock, depositary shares, warrants, purchase contracts, rights, units, guarantees of debt securities and the operating partnership’s debt securities from time to time in one or more offerings.

The base prospectus immediately follows this explanatory note. The specific terms of any other securities to be offered pursuant to the base prospectus will
be specified in one or more prospectus supplements to the base prospectus.

The information in this preliminary prospectus is not complete and may be changed. These securities may not be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor does it seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Subject to Completion, dated February 25, 2025

PROSPECTUS

$1,000,000,000

Hudson