Multi-Unit Infill Development · Southern California

Alder Creek
Development

Building high-quality multi-unit housing in Southern California. Leveraging SB9, ADU, and AB1033 to maximize density and deliver strong returns for partners.

View Current Pipeline Meet the Team →
4
Active Deals
$14M+
Pipeline Value
19+
Projects Completed
About Us

Infill Development Done Right

Alder Creek Development acquires residential lots in Southern California and transforms them into high-quality, high-demand multi-unit housing — generating strong returns for investment partners while contributing to the community's housing supply.

Legislation-Leveraged
Using California's ADU, SB9, and AB1033 framework to maximize density on infill lots — bypassing traditional rezoning delays and unlocking hidden value.
Hands-On Construction
Our team brings direct construction experience across 19+ completed SFR/ADU projects in the Los Angeles market, ensuring quality and cost control from ground-up.
Capital-Efficient
Backed by private equity and CalHFA public financing programs — low-interest loans and AHSC Housing Sustainability Grants — for optimized capital stacks.
Strong Exit Options
AB1033 enables individual condominium sales of ADU units, expanding buyer pools and maximizing exit flexibility on every project.
Regulatory Framework

Legislation That Unlocks Value

ADU
Accessory Dwelling Unit
Secondary Units on Existing Lots
ADUs allow secondary residential units to share a building lot. Forms include detached new construction, garage conversion, basement conversion, and more — enabling additional rental income and enhanced property value without major land acquisition.
SB9
Senate Bill 9 (2022 + 2025 Amendment)
Lot Splits & Increased Density
SB9 permits property owners to split a single-family lot into two and build up to two housing units on each — up to 4 units per original parcel. The 2025 amendment strengthens HCD enforcement authority, voiding local ordinances that conflict with state law.
AB1033
Assembly Bill 1033
Condominiumization of ADUs
AB1033 allows ADUs to be sold separately from the primary home as condominiums, creating exit flexibility previously unavailable. This dramatically expands buyer pools and maximizes individual unit sale proceeds.
CalHFA
California Housing Finance Agency
Public Construction Financing
CalHFA's programs include low-interest taxable bond programs and the AHSC Housing Sustainability Grant pool — creating deep, affordable construction financing for qualifying infill housing projects.
Active Deals

Current Pipeline

Four deals in active pipeline — all fire-damaged single-family residential lots in Southern California being redeveloped into multi-unit housing.

Closed
Marathon
Altadena
4 × 2-Story Houses With 6 Carports · 6,558 sq ft lot
Closed
Marigold
Altadena
2 × 2-Story Duplexes With 4 2-Car Carports · 9,810 sq ft lot
Closed
Terrace
Altadena
2 × 2-Story Houses With 2 2-Car Carports · 6,479 sq ft lot
Pipeline
Glenrose
Altadena
5 × 2-Story Houses With 5 2-Car Carports · 11,725 sq ft lot
Leadership

The Team

Managing Member · Co-Founder
Nick Montague
Over 20 years of comprehensive commercial real estate experience with a focus on horizontal and vertical development, deal sourcing, capital raising, and team leadership. Most recently served as COO of 33 Degrees, managing a portfolio exceeding 75 million square feet across residential, hospitality, office, industrial, and land asset classes.
Expert in sophisticated capital structures, underwriting, entitlement, and construction management
Led fund management, acquisitions, and capital markets verticals at 33 Degrees
Track record across AZ, TX, GA, NV, SC, CO land and residential portfolios
Contact: info@aldercreekdevelopment.com
Managing Member · Co-Founder
Arthur Leszczynski
Construction industry professional since 2014, specializing in income-producing properties. His real estate journey began after inheriting a 1907 Craftsman triplex in Los Angeles. By 2025, Arthur actively manages and develops a portfolio of 19 properties totaling 60 units across the San Fernando Valley.
Deep expertise in ADU, SB9, Junior ADU, and SB10 development types
Built trusted network of architects, designers, subcontractors, and vendors
19+ completed SFR/ADU projects from West Hills to Chatsworth to Woodland Hills
Focus on delivering high-quality projects efficiently and cost-effectively
Portfolio History

Construction Track Record

Selected construction projects from our leadership team's experience in the Los Angeles market.

Location Type Size / Units
1759 N Kenmore Ave, Los AngelesTriplex + ADU2,950 sq ft · 4 Units
22415 Saticoy St, West HillsSFR + 2 ADU/SB93,934 sq ft · 4 Units
8451 Valley Circle Blvd, West HillsSFR + 2 ADU/SB94,831 sq ft · 4 Units
21026 Gault St, Canoga ParkSFR + 2 ADU/SB95,888 sq ft · 4 Units
19227 Lanark St, WinnetkaSFR + 2 ADU/SB94,997 sq ft · 4 Units
22427 Needles St, ChatsworthSFR + 1 ADU/SB94,088 sq ft · 3 Units
10458 DeSoto Ave, ChatsworthSFR + 2 ADU/SB93,934 sq ft · 4 Units
5340 Fallbrook Ave, Woodland HillsSFR + 2 ADU/SB93,469 sq ft · 4 Units
6038 Fallbrook Ave, Woodland HillsSFR + 2 ADU/SB93,916 sq ft · 4 Units
20500 Lull St, WinnetkaSFR + 2 ADU3,339 sq ft · 3 Units
7459 Sunny Brae Ave, WinnetkaSFR + 1 ADU/SB93,616 sq ft · 3 Units
23664 Community St, West HillsSFR + 1 ADU3,034 sq ft · 2 Units
Get In Touch

Interested in Investing With Us?

Alder Creek Development is actively seeking investment partners. Reach out to learn more about our current pipeline, deal structure, and investor terms.

Contact Our Team
Managing Member
Nick Montague
Email
info@aldercreekdevelopment.com
Entity
Alder Creek Development, LLC
Focus Market
Southern California