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Costs to Build an Accessory Dwelling Unit in 4S Ranch, CA


Costs to Build an ADU


This is the very first step when deciding to build an accessory dwelling unit! You will need to determine what finishes you want. Everything from the countertops, flooring, doors, paint, etc. so that you can establish a rough estimate of price/sq.ft to determine the size of the accessory dwelling unit that you can build.

Plans & Design (Soft Costs)

Once you have a budget established it’s time to have your accessory dwelling unit designed and plans drawn. The cost to do this in 4S Ranch is typically 5%-7% of the overall cost to build the ADU. It is important to remember that the costs will vary depending on if you hire an architect or a draftsman. However, if you choose one of our pre-designed ADU plans and specifications packages that could save you $6,500 or more.

Permits & Fees (Soft Costs)

Don’t forget to account for permits & fees as well when determining a budget for your accessory dwelling unit! Fees in 4S Ranch will typically run between $9,000-$12,000 depending on the size of the home, school district, and location. These fees include school fees, traffic impact fees, building plan check fees, park fees, building permit fees, septic layout, septic permit fees, sewer fees & water meter fees.

Site Costs

Average site costs in 4S Ranch are typically between $30,000-$65,000. However, this does depend on the land that you decide to build your accessory dwelling unit on and can very easily exceed these numbers. It is very important to investigate the costs involved to improve the building site prior to purchasing your land.

The site costs will include grading, soils testing, BMP’s (erosion control), landscaping, drilling a water well, water storage tanks, booster pump & pressure tanks for the water storage tank, septic system, electrical service line, propane or natural gas line, city sewer line connection, water meter connection, asphalt or concrete driveway and area drains.

Build Costs

When figuring costs to build your accessory dwelling unit in 4S Ranch we look at previously completed projects with similar finishes and evaluate costs in 3 different categories. Those categories are the living area, covered porch area, and garage. From there we can make a rough estimate of the building costs for your new ADU! You will find the average costs for each one of these in our Accessory Dwelling Unit (ADU) Building Cost Guide for real cost per square feet examples and popular ADU floor plans.

What affects price per square foot?

Three other factors to consider when building an ADU in 4S Ranch is the actual square footage of the accessory dwelling unit, the number of bathrooms (bathrooms and kitchens are the most expensive when it comes to building), and the type of finishes that you want. To get more detailed info on pricing out an ADU building project refer to our Accessory Dwelling Unit Building (ADU) Cost Guide!

Why build an Accessory Dwelling Unit in 4S Ranch, CA?

4S Ranch is a planned community that’s part of San Diego and has a population of 45,980 people. 4S Ranch also has a crime rate 78% lower than the national average and is safer than 94% of the cities in California! It’s a great place to raise a family and they even have some of the top rated schools in San Diego County! The area has a land full of history but actual development didn’t start until 1987. 4S Ranch was originally part of 4 different square leagues and was owned by Joseph Snook and his three brothers in 1842. This where the named 4S is believed to come from, the 4 for four brothers and S for Snook. After Josephs death the land was sold to James McCoy, and then sold again in 1938 to Albert G. Ralphs. The land, still in Ralphs family, agreed to develop in 1987 but it was mostly just a business park until the 2000’s when housing development then started. Some things to do in 4S Ranch is go to Cleveland National Forest where you can hike or camp, Color Me Mine to take the kiddos, or Karl Strauss Brewery. But don’t forget you’re just a short drive to San Diego where you can enjoy all the attractions there too!

Why work with Freeman's Construction Inc?

Freeman’s Construction Inc. specializes in design build custom homes, whole house remodels, fire rebuilds, accessory dwelling units, additions, steel buildings & ICF construction (insulated concrete forms). We are leaders in fire-resistant construction & work in all areas of San Diego County.

We are a local family-owned company that has been in business since 1981. We are committed to delivering the highest quality custom homes, whole house remodels, additions, and ICF construction construction projects that are both on time and on budget. We take great pride in providing every one of our customers with a smooth and trouble free building experience. Our team will guide you through each step of our building process. Honesty, integrity & customer service are core values that make up the heart of our company. If you are looking for a general contractor you can trust, please contact us today.  

What People Say About Freeman's Construction Inc...
"We were a fire rebuild too from the 2007 wildfires. We interviewed many GCs to build our 6,000+ sq. ft. custom home. Freeman's Construction was by far the best choice and they didn't disappoint! They are family owned and operated and are just all around sincere, hard-working and godly people. All the sub contractors they use are top notch - from the framers and electricians, to the plumbers and cleaners who made the place spotless before we moved in. The construction site was always incredibly clean and Bill was there a lot to make sure everything was just how we wanted it. They communicated early and often as the project progressed, which kept us right on schedule. We came in on budget too (with any overages being our decision to go beyond the allowances). Everyone comments on how beautiful the home is - the craftsmanship, the detail, and the quality work. We are SO thankful we found and hired Freeman's Construction and wish them nothing but good fortune and blessings in all they do!"
"We needed a complete remodel on our home. Working with Freeman’s Construction was the best decision we could make. They were very professional in every phase of the project. Everything turned out beautiful and we recommend them to everyone. You can not go wrong by hiring Freeman’s Construction."
Recently Completed Custom Home Projects

Freeman’s Construction Inc. has been building custom homes, accessory dwelling units, and completing whole house remodeling projects in San Diego County for over 39 years. To schedule a project consultation please call us today at 760-788-6846 or fill out a request form here.

Areas We Serve:

Ramona, CA |Poway, CA | Escondido, CA | Julian, CA | San Marcos, CA |San Diego, CA | Rancho Santa Fe, CA | Lakeside, CA| Rancho Bernardo, CA | Scripps Ranch | Carmel Mountain Ranch | 4 S Ranch | Carlsbad, CA

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