Cost To Build A House In San Luis Obispo County

San Luis Obispo County is a county located in the Central Coast region of California. It is numerically the second-most populous county in the Central Coast (after Monterey County), with an estimated 2017 population of 259,766. The county seat is San Luis Obispo, which at 42 miles (67 km) away from Santa Maria and 38 miles (61 km) from Lompoc, is geographically central to the rest of SLO County’s major cities and towns.

Building your own home can be an undertaking, and one that’s not always cheap. There are a lot of factors that go into determining how much it costs to build a house in San Luis Obispo County, but if you’re looking to do the work yourself or with some help from friends and family members, this will give you some idea of what it might cost.

Cost To Build A House In San Luis Obispo County

The cost to build a house depends on the size of your home and its location. In San Luis Obispo County, California, the average new single-family home costs $480,000 to build and about $240 million in other counties. The size of your lot is also an important factor that impacts how much you will pay for building materials. For example: a 3/4 acre lot costs about $180,000 while an acre sized lot costs around $430,000.

Permit fees are about 7% of all trade fees plus another 7%. This can be around 40K or more. There will also be fees to get the final inspection from the state and that is typically around 4% of the total cost of construction, or roughly 30K on average.

Permit fees are about 7% of all trade fees plus another 7%. This can be around 40K or more. There will also be fees to get the final inspection from the state and that is typically around 4% of the total cost of construction, or roughly 30K on average. The costs just keep going up.


The foundation of your house is a big part of the cost of construction. There are three types of foundations: poured concrete, poured concrete with steel reinforcing, and concrete block. All three of these types come in different sizes and shapes so you can customize to your property. Concrete foundations are the most expensive but also the most durable, so if you live in an area that’s prone to earthquakes or heavy rains, this may be the best option for you.

Poured concrete: This involves digging out soil from around where your house will sit and pouring a solid slab of concrete into its place before setting up walls. It’s not uncommon for poured-concrete foundations to last over 100 years without any problems.

Concrete block: These are bricks that stack on top of each other until they reach ground level — think masonry stacked on top of itself like LEGO blocks. In terms of price and durability, they’re somewhere between poured concrete and wood framing when it comes down to it (and yes — there is a third option).


Landscaping is one of the most visual and pleasing parts of a home. It can cost from $5,000 to $100,000 depending on the size of your yard and how much you want to do. Landscaping is usually done after the foundation is poured and before framing begins. You may want to hire a landscaper for this job because it involves heavy equipment like loaders and backhoes which you don’t want to operate yourself.


Concrete is the most expensive material to install, but it’s also the most durable and environmentally friendly. Concrete has many benefits, such as being energy efficient, fire resistant, and economically stable. In addition to these benefits, concrete is also an environmentally friendly material because it doesn’t require any chemicals during manufacturing or installation.


For example, if you’re building a 2,500 square foot home with a two-car garage, the framing costs should be about $30,000. This includes the cost for lumber and nails. A two-story house will probably cost more than this amount because of all the extra supports that need to be added for the upper floor.


Drywall is the most expensive part of your house, and it will be one of the most difficult parts to install yourself. A 2800 square foot house will require about $32000 in drywall costs.

Drywall is a sheet of plaster that acts as an insulator and moisture barrier, among other things. It’s usually made from gypsum, which has been chemically treated to change its texture when mixed with water (like popcorn). Drywall may also be referred to as “gypsum board” or simply “board”.


Regardless of where you live, insulation is often required. The level of insulation required varies by region, but the most common areas are:

  • California
  • New York City and Long Island
  • Washington D.C., Maryland and Virginia


Roofing costs vary widely depending on the type of roofing material used. The average cost for asphalt shingle roofs is $60 per square foot, while slate roofs can cost as much as $180 per square foot.

Exterior Siding, Trim & Gutter

Exterior siding and trim are typically made of wood or vinyl. These materials are applied to the outside of your home’s walls, as well as to roof eaves and gables (corners). The material covering your roof is called “roofing,” and can be constructed from asphalt shingles or metal panels made from aluminum or steel. Siding is generally installed horizontally along the sides of a house, while trim is used for decorative purposes around windows and doors. Trim can also be used to conceal gaps between boards on certain types of wall construction.

Trim is often made from different types of wood than siding; for example, white cedar may be used for siding but redwood will likely be required for trim if you want it to match other pieces installed on your home’s exterior walls.[2][3] Wood does not age in color like brick does; it typically remains gray unless stained or painted after installation.[4].

Interior Finishing

The cost of interior finishing depends on the type of materials you choose. The main options include flooring, paint, countertops and cabinets.

  • Flooring: This is one of the most expensive parts of construction to install because it requires so much labor and material (think subflooring, joists, drywall). Expect to pay between $3-$5 per square foot for carpet; tile costs around $6-7 per square foot installed; hardwood floors range from $12-$20 per square foot depending on how nice they are (more expensive wood will have more detail work); laminate ranges from $4-$8 per square foot installed; vinyl ranges from $4-$10 per square foot installed.
  • Paint: If you’re painting yourself or hiring a painter to come in after construction is done, expect to pay around $5-$10 per gallon for paint—it’s a good idea to get multiple quotes for this part since there are a lot of variables involved (like what kind of paint you’re using).
  • Cabinets: Cabinets vary widely based on quality and style but expect them not only to be really expensive but also really time-consuming when installing—this can add up quickly. On average, budget at least 10%–15% more than what they quote initially because they might need extra supplies when installing that don’t fall into “standard” costs like cabinets themselves do (e.g., caulk).

Flooring, Paint & Cabinets

Flooring: Closets and bathrooms are standard sizes, but the rest of your house is up to you. This can get expensive quickly if you have high-end tastes.

Cabinets: These add a lot of warmth to any kitchen and can be made from a variety of materials, including wood, granite, and even stainless steel. The price will vary depending on the size and material used for each cabinet.

Paint: A gallon of paint costs approximately $600 in San Luis Obispo County—and that’s just for one color.

Interior Finishing

Interior finishing is the process of adding fixtures and furniture to a house. This step is usually done after the walls are painted, or can be included in the building process beforehand.

While you can choose to purchase these items yourself or hire an interior designer, it’s recommended that you get advice from a professional in order to ensure your budget aligns with your needs.

There are several ways to finance interior finishing costs:

  • Escrow account (for new construction only) – this option is typically used for homes under construction that have not yet been sold. The buyer pays into an escrow account during construction and uses those funds as needed during different phases of finishing. It works best when they want complete control over what goes into their home because they won’t have other buyers’ tastes influencing their decisions about finishes or furniture purchases; however, if you go this route be prepared for delays due to weather conditions affecting construction progress outside

Sewer – $1000

Sewer line installation cost is about $1000 for an average home. This is the most expensive part of building a house in San Luis Obispo County, so if you are looking to save money on your new home, consider planning your bathroom and kitchen layouts around the location of existing sewer lines.

Water – $9000


The cost of water hook-up varies depending on the type of meter you’re using and whether or not it’s being installed in a pre-existing house. The average base price for a new home is $2,500 but can be as high as $5,000. A standard water meter costs around $400–$700 and may need to be installed by a plumber ($200-$300). To get the line from your home to the meter or hook-up point, add another $1–$2 per foot (for example: if your house is 100 feet away from where they want to put the meter) plus whatever labor costs are involved.

Grading – $5000

Grading is the process of removing dirt and leveling the ground. Grading is necessary to ensure that water flows away from the house and doesn’t pool around it. It also ensures proper drainage, which is important for keeping your foundation dry and protected from flooding.

Septic – $12,000 for a 2 bedroom house, about $5000 for a 3 bedroom house with a tank and leach fields.

Septic systems vary widely in cost, but they are expensive. A one bedroom house on a flat lot will cost about $8000 to $10,000 for septic and leach field construction. A two bedroom house on a flat lot will cost about $12,000 for septic system installation. A three bedroom house with a tank and leach fields will cost around $5000 more than the base price of just installing the pipes below ground level.

The cost of your septic system depends on how much room you have to excavate (how deep you dig), how much rock is there that needs to be blasted out with dynamite (or some other method), and whether or not there are any trees growing where you need access for digging trenches or installing pipes underground from your home down into the ground where it’s safe from surface water runoff like rain or snow melt coming down off roofs during storms.”

Plan Check fees $40 per 100 sq ft of livable space, or about $11000 for a 2800 square foot house.

Plan Check fees are $40 per 100 sq ft of livable space, or about $11000 for a 2800 square foot house. Plan Check is the city agency that inspects your building plans to ensure they meet all building codes and regulations. If your plans do not meet all these standards, they will be rejected and you will have to make changes until they do. The plan check process can add up quickly because it involves multiple people doing specialized work on your project and each one will charge you separately.

Plan check fees are roughly 7% of all trade fees plus another 7%. This means if you have a 1500 sq ft house with no garage or basement (making it about 1200 sq ft), then plan check would cost about 8% of all trade costs related to building the house (excluding things like excavation costs).

Inspection Fees are around $0.5 per square foot, or about $$1400 for a 2800 square foot house.

Inspection fees are around $0.5 per square foot, or about $$1400 for a 2800 square foot house. You can expect to pay between $1 and $2 per square foot for installation of the roofing materials you choose.

The cost of your solar panels will depend on whether you choose to buy them outright or lease them from an energy company. Leasing is common because it allows homeowners to save money on their energy bills by offsetting the cost of installation with lowered electricity payments over time, but this means that they’ll have less control over when they receive their panels and how much maintenance needs to be done on them in exchange for lower monthly utility costs over time.

Electrical – $2000 to run lines to the meter, then roughly $7 per linear foot of conduit needed, which is usually estimated at 1/4 of the total footage, so about $6000 for a 2800 square foot house.

The cost for an electrician to run lines to the meter, then roughly $7 per linear foot of conduit needed, which is usually estimated at 1/4 of the total footage. So about $6000 for a 2800 square foot house.

In conclusion,

In summary, the total cost to build a house in San Luis Obispo County is between $200K and $230K on average. The cost of construction will vary depending on what you want in your home but this should give you an idea of what it costs to build a house here.

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