top of page
4837_34th (56 of 98).jpg

San Diego’s Dedicated ADU Design-Build Experts

From backyard tiny homes to luxury garage conversions, we handle the permits, design, and construction so you can maximize your property’s value.

✔ Bonus ADU Strategy: We help you navigate San Diego’s density bonus programs.

 

✔ Turnkey Permitting: We handle the City of San Diego & County permit hurdles for you.

✔ Fixed-Price Feasibility: Know exactly what you can build before you break ground.

​​

Screenshot 2026-03-04 171756.png
Photo Nov 02, 11 36 41 AM.jpg

The H&M Path to Build: Your San Diego ADU Journey

Step 1: Site Feasibility & Zoning Audit

Before you invest in expensive blueprints, we verify exactly what your property allows. Our deep dive into San Diego’s local municipal codes includes:

  • Zoning & Setback Analysis: Identifying the precise "buildable envelope" of your lot.

  • Utility Infrastructure Check: Assessing sewer, water, and electrical capacity for the new unit.

  • Easement Verification: Ensuring no hidden underground lines or city rights-of-way will stall your project.

  • Bonus ADU Strategy: Determining if your lot qualifies for density bonuses to maximize your build.

 

Step 2: ADU Architecture & Engineering

We don't just design a "backyard house"; we design an asset. Our architectural process focuses on:

  • ROI-Driven Design: Optimizing layouts to command maximum rental income or provide luxury "Aging in Place" comfort.

  • City-Approved Engineering: Structural plans designed to sail through San Diego and County permitting departments.

  • Fixed-Price Planning: We align the design with your budget early, so construction costs don't come as a surprise later.

Step 3: Full-Service Construction

Once permits are in hand, our team takes over the heavy lifting.

  • The Homeowner Portal: Follow every milestone through Buildertrend, with real-time photo updates and daily logs.

  • Project Management: We handle all city inspections and subcontractor coordination.

  • Turnkey Delivery: From the first shovel in the ground to the final certificate of occupancy.

 

Project Timeline Transparency⏱

Average Project Duration: 6–10 Months

  • Months 1-3: Design, Feasibility, and Permit Submission.

  • Months 3-5: City Plan Review & Permit Issuance.

  • Months 5-10: Site Preparation and Full Construction.

Photo Dec 30, 10 51 57 AM (1)_edited.jpg
1998 calle entre.jpg

Services

  • Detached ADUs (Grandparent Flats).

  • Junior ADUs (JADUs) & Garage Conversions.

  • Multi-family ADU additions.

H&M Building Services LLC specializes in ADUs throughout San Diego. From feasibility and zoning review to design, permits, and construction, we manage the entire ADU process using a proven 3-step approach that reduces risk and improves pricing accuracy.

250000471_1.jpg
5.jpg

​Request Your Free Consultation

Tell us a little about your project and we’ll call within 1 business day.

Upload File
Upload supported file (Max 15MB)

By submitting, you agree to be contacted by H&M Building Services via phone, text, and email.

Thanks for submitting!

Photo Dec 30, 12 15 29 PM (1) (1).avif
4837_34th (4 of 98).jpg
4837_34th (98 of 98).jpg
09dc79_07ee9856ce7741f39dd3aa04181b9fcd~mv2.webp
20201002_170113460_iOS.jpg
bottom of page