From a single room addition to a complete new-build strategic property expansion, SELES Construction handles the complexity of ground-up development. We are the East Bay's premier specialists in maximizing property value through modern density solutions under ADU and SB 9 regulation.

Your vision, our 25 years of construction mastery. We manage the entire lifecycle from excavation to the final coat of paint. Includes compliance with 2026 Title 24 Energy Codes for net-zero readiness.

Extending your living space with structural integrity and aesthetic harmony. Your footprint on new master suites or sunrooms with seamless architectural integration made possible.

Specialized and master-planned secondary units built to Gov. Code §§ 66314–66333standards. We leverage SB 543 exemptions to save you on impact fees.

Navigating the "Ministerial Review" process in the East Bay, helping you split your R-1 lot into two parcels per Gov. Code § 66411.7 and doubling your property’s potential.

The Vision: Bringing your unique architectural vision to life with precision-engineered new builds.
Why It Matters: Building new in the East Bay requires a deep understanding of unique soil conditions and strict energy mandates. We ensure your new home is "Net-Zero Ready."
Key Activities:
Foundation engineering
Framing to finish
Complete systems integration (MEP)
Regulatory Reference: Compliant with the **2025/2026 California Building Code (CBC, Title 24, Part 2)** [1].

The Vision: Expanding your current home's square footage through master suite additions or sunrooms.
Why It Matters: Additions allow you to grow your space without leaving the neighborhood you love. We focus on "seamless integration," so the addition looks original to the house.
Key Activities:
Concrete slab pouring
Structural tie-ins
Exterior envelope matching.
Regulatory Reference: Adherence to local setbacks and CA Government Code § 65852.2 for footprint expansion.

Designs and builds that provide independent living for rental or multi-generational living.
Why It Matters: ADUs are the most flexible way to add property value. We leverage the 2026 "Shot Clock" to ensure approvals are processed within 60 days. | ADUs are the most flexible way to add square footage for family or rental income. We utilize 2026 "Shot Clock" laws to ensure fast-tracked approvals.
Key Activities:
Regulatory Reference: Governed by the **2026 ADU Recodification (Gov. Code §§ 66314–66333)** [2].
Our services include handling of the paperwork necessary to obtain a construction permit for the ADU and JADU legislation. Click below to find out more.
The Vision: We help you strategically divide your single-family lot into two parcels to double your property’s potential.
Why It Matters: Under the ministerial review process, local cities cannot block a split if state criteria are met, allowing for up to four units on a single lot. | Under the ministerial review process, local cities cannot block a split if state criteria are met, allowing you to build up to four units on what was once a single lot.
Key Activities:
Parcel map coordination/preparation
Independent utility planning
Owner-occupancy affidavit management
Regulatory Reference: Governed by **California Government Code § 66411.7 (SB 9)** [3]

Still not convinced? Click to learn more about The SELES Advantage and how it can benefit your project.
Primary Regulatory Framework:
SB 9 (The California Housing Opportunity and More Efficiency Act): California Government Code §§ 65852.21 & 66411.7. Governs ministerial approval of duplexes and urban lot splits.
Accessory Dwelling Unit (ADU) Law: California Government Code §§ 66314 – 66333. (Newly recodified for 2025/2026). Sets the "Shot Clock" and setback rules.
Junior ADU (JADU) Standards: California Government Code § 66333. Defines JADU size (max 500 sq ft) and connection requirements.
Key Citations:
Impact Fee Exemptions: Gov. Code § 66324. Prohibits impact fees for ADUs under 750 sq ft and JADUs under 500 sq ft.
Amnesty for Unpermitted Units: AB 2533 (2024). Extends the deadline for legalizing unpermitted ADUs built prior to January 1, 2020.
Ministerial Review Timelines: Gov. Code § 66314. Mandates a 60-day approval window for complete ADU applications.
Regulatory Footnotes
[1] California Building Code (CBC): Title 24, Part 2, Volumes 1 & 2 (2025/2026 Edition) for new-build residential occupancies.
[2] ADU & JADU Recodification: California Government Code §§ 66314–66333 (Effective Jan 1, 2025/2026), governing height, setbacks, and permit "shot clock" timelines.
[3] SB 9 Urban Lot Splits: California Government Code § 66411.7 (Ministerial approval of parcel maps and urban lot splits).
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.