Santa Clara, CA Kitchen, Bath and Home Renovation Gadi Construction

Home Additions in Antioch

Antioch homes offer warmth, charm, and plenty of potential, and a well-planned home addition can make them even more functional for growing families. At Gadi Construction, we build additions that blend beautifully with your property while giving you the extra room you’ve been needing. Whether you want a bigger living space, an extra bedroom, or a modern work-from-home area, we design and construct additions that improve comfort, increase value, and fit the relaxed lifestyle of Antioch homeowners. Our team ensures every project is smooth, clear, and completed with quality craftsmanship.

Our Kitchen Remodeling Process

We follow a seamless, structured process to ensure your kitchen remodel is smooth and stress-free from start to finish.

1

Personal Consultation

 We begin by understanding your ideas, style preferences, and project goals to create a plan that aligns with your lifestyle.

2

3D Design & Visualization

 Our experts design your kitchen in 3D so you can see exactly how the final space will look before construction begins.

3

Material Selection

We guide you in selecting high-quality materials from cabinets and lighting to flooring and countertops that complement Alameda’s architectural charm.

4

Construction Excellence

Our skilled craftsmen execute each stage with precision, care, and respect for your home.

5

Final Review & Quality Check

 Every detail is carefully inspected to ensure perfection, durability, and your complete satisfaction.

Home Addition Ideas Shaped by Antioch Living

Antioch’s mix of suburban convenience and scenic surroundings inspires homeowners to create more open, practical, and welcoming spaces. At Gadi Construction, we design additions that match your home’s structure and support your daily needs while enhancing flow and style. Each layout is planned carefully to feel natural, inviting, and fully connected to your existing home.

Here are six home addition styles popular among Antioch residents:

1. Expanded Family Room Retreat

A larger family room gives your household more space to relax, entertain, and spend time together. With bright lighting, open floor plans, and cozy design features, this addition creates a warm gathering spot for daily living.

2. Spacious Bedroom or Guest Suite

Adding an extra bedroom or private suite is perfect for guests, kids, or extended family. With its own bathroom and comfortable layout, it offers privacy, flexibility, and long-term convenience for busy households.

3. Upgraded Kitchen Extension

A wider kitchen allows for better storage, improved flow, and modern appliances. This extension supports cooking, dining, and entertaining with more comfort, creating a lively and functional family space.

4. Dedicated Home Office or Work Zone

With remote work becoming common, a quiet, separate workspace is essential. This addition includes built-in storage, good lighting, and sound control to help you stay focused and productive at home.

5. Sunroom or Bright Sitting Area

A sun-filled room offers a peaceful corner for reading, relaxing, or enjoying outdoor views year-round. Large windows and comfortable finishes make this addition a refreshing retreat inside your home.

6. Multi-Purpose ADU or Private Living Space

A wider and brighter living area perfect for gatherings, relaxation, and daily activities. This design improves flow, enhances comfort, and creates an inviting atmosphere for everyone.

Bathroom and Bedroom Remodel

Full-Service Home Addition Solutions in Antioch

From the first idea to the final walkthrough, Gadi Construction manages every stage with precision and care. Our experienced team ensures the addition blends beautifully with your home while meeting all safety, code, and quality standards.

Our services include:

  • Complete Home Addition Design
  • Structural Framing & Expansion Work
  • Flooring, Walls & Interior Finishes
  • Electrical, Plumbing & HVAC Upgrades
  • Permit Processing & Code Compliance
  • Custom Layouts and Storage Options

Why the Bay Area Chooses Gadi Construction

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Tell us about your project and get a personalized, no-obligation quote.

We specialize in remodeling and construction – from kitchens to full home makeovers.
Let’s bring your vision to life with expert planning and transparent pricing.

OR CALL TODAY FOR A FREE ESTIMATE:
SAN JOSE AREA – 404-889-1000
SAN FRANCISCO AREA – (925) 639-3177

Our Services

Home Remodel

Bring new life to your home with expert remodeling that combines style, comfort, and functionality. Upgrade your home from floor to ceiling with a custom remodel tailored to your needs and lifestyle.

Common Area Remodel

Kitchens are the centerpieces of your home; they’ve become the center of most modern homes, a place where family comes together to share tastes, love, and stories.

Kitchen Remodel

Kitchens are the centerpieces of your home; they’ve become the center of most modern homes, a place where family comes together to share tastes, love, and stories.

Bathroom Remodel

One of the most common remodeling projects for homeowners is to remodel the bathrooms in the house. After all, this is probably the first place you visit in the morning and the last place you visit at the end of the day.

Additions​

Anyone can use an extra room in their home. It could be a space for business, like an Airbnb unit, daycare (yes, we’ve seen that happen) if you would like it or need an additional guest room or bedroom.

ADUs​

Maximize your property’s potential with a custom-built ADU. Whether it’s for rental income, a home office, or additional living space, our team designs and builds functional, stylish units that blend seamlessly with your property.

Basement Remodel

Transform your basement into a beautiful, functional living space, a cozy retreat, home office, or guest suite with expert remodeling your family will love.

Begin Your Home Addition Project in Antioch Today

Ready to add more room, comfort, and value to your home? Contact Gadi Construction today for a free consultation. We’ll help you design a beautiful home addition that fits your lifestyle and enhances your Antioch property. Let’s build a space your family will enjoy for years to come.

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People Also Ask

The 30% rule for renovations is a common budgeting guideline suggesting that the cost of a renovation should not exceed 30% of a property's current market value. This is a rule of thumb to help homeowners avoid overcapitalizing—spending more on improvements than they can reasonably recoup in the property's resale value. For example, on a home valued at $500,000, the recommended renovation budget would be around $150,000. Adhering to this helps maintain a sound financial investment, ensuring upgrades like kitchen remodels or bathroom updates enhance livability and market appeal without pricing the home out of its neighborhood. It's crucial to obtain accurate appraisals and detailed contractor quotes to stay within this framework.

The cost of a 20x20 home addition varies widely based on location, materials, and complexity, but a typical range is between $80,000 and $200,000. A basic, single-room addition with standard finishes often starts around $80,000 to $120,000. For a more complex project involving kitchens, bathrooms, or high-end finishes, costs can easily reach $150,000 to $200,000 or more. Key cost factors include foundation work, roofing, electrical, plumbing, HVAC integration, and interior finishes. Permits, design fees, and potential upgrades to your existing home systems also contribute. It is crucial to obtain detailed quotes from licensed contractors, as site-specific challenges like soil conditions or accessibility can significantly impact the final price.

The cost comparison between adding on and building new depends on several factors. Adding an extension often has a lower base cost per square foot as it utilizes existing infrastructure like the foundation, roof, and utilities. However, unforeseen issues with the existing structure, such as outdated wiring or plumbing, can increase expenses. Building a new home provides complete design freedom and modern efficiency from the ground up, but involves higher costs for land, all new materials, and full-site development. For a straightforward expansion, adding on is typically cheaper. For a major overhaul or if the existing home has significant problems, building new might offer better long-term value and avoid the complexities of integrating with an old structure.

The most expensive part of a home addition is typically the foundational and structural work, which includes excavation, concrete footings, and the foundation wall. This phase is labor-intensive, requires specialized equipment and materials, and must meet strict building codes, making it a significant cost driver. Following closely are expenses for framing, roofing, and major system extensions like HVAC, electrical, and plumbing. High-end interior finishes such as custom cabinetry or premium flooring also contribute substantially to the overall budget. Proper planning and obtaining detailed quotes from licensed contractors are crucial to managing these costs effectively and avoiding unexpected overruns.

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