Premier ADU & Home Addition Builder in San Diego County

Expand your living space and add value to your property with our expert ADU and home addition services in San Diego County.

With innovative designs and exceptional craftsmanship, we’re here to create beautiful, functional spaces that seamlessly blend with your home while meeting your unique needs.

Experts in ADUs and Home Expansions!

Invest in your home with a beautifully crafted ADU or Home Addition.

transform Your Home with the Perfect Addition or ADU

Building your dream ADU or home addition starts here!

Our team works closely with you every step of the way, from initial planning to the final details. We’re passionate about transforming your vision into reality and share in the excitement of building the ADU or home addition you’ve always dreamed of!

  • Detailed in-home 3D design to bring your dream ADU or addition to life

  • Complete project management, guiding you through every step of the process

  • Full-service construction, including foundation, framing, roofing, plumbing, electrical, and finishing touches

Creating Exceptional ADUs & Home Additions

Our Step-by-Step Process for ADUs & Home Additions

Trust our experienced team to deliver a seamless expansion that adds value to your home and enhances your lifestyle.

1. Share Your Ideas

Expand your home with confidence.

Tell us about your goals for your ADU or addition, and we’ll help bring it to life.

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2. Get a Custom Design Proposal

Functional and stylish solutions.

We design an ADU or addition that enhances your home’s value and functionality.

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3. Clear Construction Bids

Transparent pricing you can trust.

We provide detailed estimates for every aspect of your project.

4. Permits and Planning Made Easy

We handle the details.

Our team secures permits and ensures compliance, so you don’t have to.

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5. Construction Phase

Building with precision and care.

From foundation to finishing touches, we ensure expert craftsmanship.

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6. Project Delivery

Your new space, ready to enjoy.

We complete your project with care, leaving you with a beautifully expanded home.

Unlock the full potential of your property

Explore Our ADU & Home Addition Services

ADUs (Accessory Dwelling Units)

Room & Home

Additions

Garage

Conversions

New Construction

Framing

Architectural/ Engineering Plans

2D/3D

Renderings

Experience, Expertise, and Excellence

What Makes Us the Right Choice for Your ADU or Addition?

Competitive Bidding

Fresh, creative solutions.

We deliver value by combining efficiency with high-quality results. Clients benefit from our ability to stay on budget and meet deadlines.

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Skilled Trade Partners

Top-notch services.

Our expert craftsmen ensure every detail is executed flawlessly. Clients recognize the superior quality that defines their spaces.

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Transparent Communication

Honesty and Integrity.

We keep clients informed every step of the way. Trust and clarity guide our process from start to finish.

We're Here To Help!

Have questions about our services? Check out our FAQs for quick answers. If you don’t see your question, feel free to contact us—we’re happy to assist!

What is an ADU, and how can it benefit my property?

An ADU (Accessory Dwelling Unit) is a secondary housing unit built on a residential property. It can serve as a rental income source, a home for extended family, or a private office or guest house. ADUs increase property value while offering versatile living solutions.

How long does it take to complete an ADU or home addition project?

The timeline varies based on the project's scope, permitting process, and design complexity. Typically, an ADU or home addition can take 6–12 months from planning to completion. We’ll provide a detailed timeline during our consultation.

Do I need permits for an ADU or home addition in San Diego County?

Yes, permits are required for both ADUs and home additions to ensure compliance with local building codes and regulations. Our team will handle the permitting process for you, making it stress-free.

Can I customize the design of my ADU or addition?

Absolutely! We work closely with you to create a design tailored to your needs and style preferences. From layout to finishes, every detail is customizable to make your space uniquely yours.

Bringing Excellence to Every Corner

ADU & Addition

Services In These Areas

Central Region

  • Mission Valley

  • North Park

  • Mission Bay

  • Ocean Beach

  • Mission Beach

  • Point Loma

  • La Jolla

  • Kearny Mesa

  • Clairemont

  • Liberty Station

  • Downtown San Diego

  • Coronado

North County

  • Oceanside

  • Escondido

  • Carlsbad

  • Vista

  • San Marcos

  • Encinitas

  • Poway

  • Ramona

  • Solana Beach

  • Del Mar

East County

  • El Cajon

  • La Mesa

  • Santee

  • Lemon Grove

  • Alpine

  • La Presa

  • Spring Valley

  • Rancho San Diego

  • Lakeside

South Bay

  • Chula Vista

  • Bonita

  • National City

  • Imperial Beach

  • South San Diego

Company Info

Nextgen Builders is a trusted local residential general contractor, known for delivering exceptional craftsmanship and personalized service. We specialize in ADUs, home additions, remodels, and renovations.

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Hours of Operation

Mon 8:00 AM – 5:00 PM

Tues 8:00 AM – 5:00 PM

Wed 8:00 AM – 5:00 PM

Thu 8:00 AM – 5:00 PM

Fri 8:00 AM – 5:00 PM

Sat 8:00 AM – 5:00 PM

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