Setback rules and requirements for an architectural design in California (2024)

Introduction

Are you planning to build a shop, home, or any other structure in California? Well, if you’re, you should know that you can build it onto the road or street.

Why? Because each state has certain rules for that. These rules determine how far your structure should be from adjacent properties/ street. That also applies to the rear and side. In fact, that distance is known as ‘setback’! Just look at any architectural design in California and you’ll note this.

Local governments apply setbacks to establish ‘no-building zones’ on the property. Another benefit of setbacks is that they keep harmful operations and traffic at bay.

What’s the definition of a setback?

It’s the smallest distance from the property line you should maintain when building structures. This distance also applies to the streets, roads, rivers, flood plain, or shores. They establish an exact distance from a specific point. Say like an adjacent structure/ property line. Building a structure within that area is illegal.

Significance of setbacks

The main purpose of setbacks is to prevent owners from crowding their neighborhoods. This ensures that one’s property doesn’t block their neighbor’s view. They also ensure every property in the area has enough access to light and ventilation.

Local governments establish setbacks through building codes, ordinances, and zoning restrictions. They create these rules for public policy purposes like privacy, safety & environmental protection. Also, setbacks help in wetlands preservation and promote the safe installation of pipelines. Neighborhood developers or an architect might also establish setback lines to ensure a uniform appearance.

Setback rules

These are property laws that govern boundaries and property lines. Regulation of these distances falls under the zoning laws & restrictions. Setback rules also apply to commercial buildings. Especially the minimum distance between the structure and the road to encourage safety.

These rules can have a significant impact on your rights as a property owner. Especially when you want to change existing structures or develop the land. They also tend to affect property values. For instance, if the land restrictions are severe, its value may decrease.

In some instances, the local government can allow you to build ahead of the setback line. For instance, if setbacks hinder your building, you can plea to the local government. To achieve this, you’ll need a variance. This special permission allows you to depart from zoning rule requirements. However, you’ll only get a variance in case of severe hardship.

Size of setbacks in California

As we said earlier, the local government determine the setbacks’ sizes. Those sizes will be according to your land’s classification of the zoning district. Remember, the zoning district also determines what you can do on your property.

Setback measurement should be done at a right angle from the nearest property line point to the nearest building point. What if the lot is corner and odd-shaped? Simple! The Zoning officer will determine the position of the side, rear, and front property line.

Setback requirements

This refers to the minimum size as well as standards that govern the use of setbacks. Setback requirements provide open space around buildings for;

  • Traffic safety and visibility
  • Access to & around structures
  • Direct sunlight & ventilation
  • Space for recreation, privacy & landscaping
  • Separation of contradictory land uses

Setbacks from Residential houses

The minimum distance from the front property line should be 35 feet. Even so, this can vary if it’s specified greater on the zoning map. Older neighborhoods may be subject to some exceptions.

The minimum distance from the back and side property lines should be 10 feet and 3 feet from any easem*nt. For lots with a width of 50 feet or less, the distance from side property lines will be 5 feet.

Decks/ Additions

  • Property line setbacks should apply to decks & additions as described in residential houses.
  • The distance of the septic field and tank from the property line should be 10 feet and 5 feet respectively.

Accessory Structures (Detached garages, barns, or sheds)

  • A residence shall not have more than 2 detached accessory structures
  • No detached accessory structure shall exceed a total floor area of 900 sq. ft. for lots with an area of 2 acres or less.
  • For lots with an area of 2-5 acres, no detached accessory structure shall exceed a total floor area of 1800 sq. ft.
  • Accessory structures shouldn’t be on the property before construction of the main building.

Setbacks for accessory structures

  • The minimum distance from the front property line should be 35 feet. That can only vary if it’s specified greater on the zoning map.
  • The minimum distance from the back and side property lines should be 10 feet and 3 feet from any easem*nt. For lots with a width of 50 feet or less, the distance from side property lines will be 5 feet.
  • If the accessory structure exceeds 75 feet from the front line, the back/ sideline distance should be 3 feet.
  • Animal barns should be at least 100 feet from the neighboring houses.

Swimming pools

  • Property line setbacks apply as described in accessory structures
  • The least distance from the septic field and tank to the pools should be 25 feet and 10 feet. 25 feet for an in-ground pool and 10 feet for an above ground pool.
  • Every property with a pool should have enough enclosure surrounding the pool area. The enclosure must have a height of at least 4 feet and a latching gate.
  • If the sides of the above-ground pool are more than 4 feet high, a fence isn’t required. However, the pool should have a fold-up ladder.

Fences

Construction of a privacy fence will need a building permit. It’s worth noting that a privacy fence refers to the one that passers-by can’t see through. So, the construction of split rail and chain link fences does not need building permits.

A fence can be built along the property line with the front side looking towards any direction. Furthermore, fences don’t have a height limit.

Fences: A zoning ordinance

Owners should not place, erect, or maintain electric or barbed wire/ spiked fences. Especially within a residential property.

Conclusion

In general, every prospective buyer should be aware of the setback provisions. Particularly if there some subjected to a piece of land before buying it. That information will come in handy in your future development plans. Setbacks remain intact until a special local government action or law changes it.

Furthermore, note that violating these regulations can result in legal proceedings/ penalties. You may also receive an order requiring you to demolish the non-compliant structures.

Setback rules and requirements for an architectural design in California (2024)

FAQs

What are building setback requirements in California? ›

The minimum distance from the back and side property lines should be 10 feet and 3 feet from any easem*nt. For lots with a width of 50 feet or less, the distance from side property lines will be 5 feet. Property line setbacks should apply to decks & additions as described in residential houses.

What is the setback principle in architecture? ›

setback, in architecture, a steplike recession in the profile of a high-rise building. Usually dictated by building codes to allow sunlight to reach streets and lower floors, a setback is incorporated because the building must take another step back from the street for every specified added height interval.

What is setback in architecture measurements? ›

Setbacks are the minimum required distances between lot lines and buildings or structures. They are generally measured as an offset from the referenced lot lines (or curves) toward the interior of the lot. Setbacks are established for the following purposes: To complement the scale of the land use.

How close to the property line can I build? ›

Buildings should be set back from the line of property. In light of the fact that setbacks are determined by state and county, there is not a single standard for them. The front setback is commonly 10 feet, the sides four feet, and the back setback is 10 feet.

How close to the side boundary can I build? ›

STATE ENVIRONMENTAL PLANNING POLICY (EXEMPT AND COMPLYING DEVELOPMENT CODES) 2008 - REG 3.10
Lot width at the building lineBuilding height at any pointMinimum required setback from each side boundary
>18m-24m0m-4.5m1.5m
>18m-24m>4.5m-8.5m(building height-4.5m) ÷ 4 + 1.5m
>24m0m-8.5m2.5m
4 more rows

How close to my boundary can I build an outbuilding? ›

'I need an outbuilding as I have outgrown the house! ' The good news is that for most people you can build that structure in the garden as long as you keep to a few simple rules. The most important being up to 50% of your curtilage for additions and a maximum height of 2.5m if within 2m of a boundary.

What are examples of setbacks? ›

Setbacks can have many forms: injury, divorce, job loss, paralyzing anxiety, or even the quintessential “bad day.” Setbacks can take us by surprise even though we know that life will present us with unexpected challenges.

What is a setback in legal terms? ›

Setback means the areas, measured from the property line to any structure, within which building is prohibited, but which may include driveway areas or other similar surface improvements. In other words, it is the distance a building must be from the street as required by zoning laws.

What is a big setback? ›

A setback is an event that makes you lose progress or keeps you from gaining ground. If you're knitting a sweater, dropping a bunch of stitches would be a big setback. If warring countries are negotiating a treaty, a sudden resurgence of fighting would be a huge setback for their peace plan.

How does floor area ratio work? ›

Floor area ratio (FAR) is the measurement of a building's floor area in relation to the size of the lot/parcel that the building is located on. FAR is expressed as a decimal number, and is derived by dividing the total area of the building by the total area of the parcel (building area ÷ lot area).

What is a building stepback? ›

A building step-back is an architectural design element that is typically applied to the upper-story of a. development. Typically, a step back requires that any portion of a building above a certain height is. further pushed-in towards the center of the property.

What is the building code for setback property lines in California? ›

A. All buildings and structures in a PRD must maintain a minimum setback of 10 feet from the PRD zone district boundary. B. All buildings other than front-entry garages or carports shall maintain a minimum distance of 10 feet from the right-of-way of a public street or a private street or driveway.

What is the property line law in California? ›

California Civil Code Section 842 has a clear message about neighbors and fences: “Adjoining landowners are presumed to share an equal benefit from any fence dividing their properties and, unless otherwise agreed to by the parties in a written agreement, shall be presumed to be equally responsible for the reasonable ...

What is the Good Neighbor fence Act in California? ›

The Good Neighbor Fence Act in California establishes the principle of equal responsibility for building, maintaining, and repairing boundary fences between neighboring landowners. It promotes cooperation and fairness by ensuring that costs and responsibilities of fence ownership are shared equally.

What is the setback for an ADU in California? ›

Further, a setback of no more than four feet from the side and rear lot lines shall be required for an attached or detached ADU. (Gov. Code, § 65852.2, subd.

What is a yard setback? ›

Setbacks refer to the minimum distance that the structure must be set back from the property lines or other structures to ensure safety, privacy, and respect for adjacent buildings. By law, the required setback that any ADU construction must comply with in California is 4′ side and rear from the lot line minimum.

How far does a shed have to be from the fence in California? ›

Typically, a storage shed must be located a minimum distance of 5 feet from the property line. If you live on a corner lot or if your property is subject to easem*nts, the minimum distance could change.

What are the residential setbacks in LA County? ›

Standard Yard Requirements:
  • Front Yard: 20 feet (22.20. ...
  • Rear Yard: 15 feet or 20% of average depth of shallow lot, but not less than 10 feet (22.20. ...
  • Side Yards: Interior Lot: 5 feet or 10% of average width of narrow lot, but not less than 3 feet (22.20.

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