Corner Lot: Setbacks, Fence Rules, Pros and Cons

A corner lot is a lot at the intersection of two streets, with frontage on both. Zoning codes usually add an angle test: Fairfax County, Virginia, counts a lot as a corner lot when the streets meet at an interior angle of 135 degrees or less. The second street frontage changes the setbacks, fence heights and driveway options.

This guide is written by Pillar, which makes land research software. We read every source linked here on November 15, 2026. It is general information, not legal advice. Codes change and carry conditions we don't repeat, so confirm the rule for your lot with the local planning department or a licensed professional in your state.

What is a corner lot?

• Fairfax County, Virginia. "A lot at the junction of and abutting on two or more intersecting streets when the interior angle of intersection does not exceed 135 degrees." A lot where one of the streets is an interstate highway is not a corner lot.
• Portland, Oregon. A lot "that has frontage on more than one intersecting street, and where the lot frontages intersect." A single street that curves with angles of 120 degrees or less, measured from its center line, counts as two intersecting streets (Zoning Code 33.910).
• Albuquerque, New Mexico. "A lot located at the intersection of and having frontage on 2 or more streets." It has no angle test.

Corner lot vs interior lot, through lot, reverse corner lot and key lot

Codes define corner lots alongside a few related types. The definitions below come from San Carlos, California (Chapter 18.41) unless noted.

• Interior lot. A lot bounded on one side by a street line and on all other sides by lot lines shared with adjacent lots, or a lot bounded by more than one street where the streets meet at more than 135 degrees. Fairfax County's definition is shorter: "Any lot, including a through lot, other than a corner lot."
• Through lot (also called a double-frontage lot) means "a lot having frontage on two (2) parallel or approximately parallel streets." The streets are at the front and back, not at a corner.
• Reversed corner lot (or reverse corner lot) means "a corner lot, the rear of which abuts the side of another lot, whether across a lane or not."
• Key lot means "an interior lot adjoining the rear lot line of a reversed corner lot."

A flag lot is the opposite case: a lot behind another lot, with almost no street frontage.

Which side is the front of a corner lot?

The code decides. We found three approaches in the codes we read.

• The shorter street line. Fairfax County says "the shorter street line is the front lot line, regardless of the location of the principal entrance or approach to the main building." San Diego puts the front property line "along the narrowest street frontage" (§113.0246(a)). Portland uses the shortest lot line that abuts a street, and if two or more street lot lines are equal, "the applicant or property owner can choose."
• The neighbors' layout. For a detached or attached house in Raleigh, North Carolina, a corner lot's primary street is the one "opposite the rear yard of any adjoining lot." If the corner lot abuts only the side yard of adjoining lots, or abuts another corner lot, the primary street is along the narrowest street frontage. If the two frontages are within 10 percent of each other in length, either may be designated. A Major Street is never the primary street (UDO Sec. 1.5.4). The same section adds that a limited-access highway is never primary, a dead-end or cul-de-sac street can be primary only for residential lots, and a private street "cannot be primary unless the lot has no public street frontage." An adopted plan that designates primary streets controls. If none of the criteria produce a result, the applicant may designate.
• Both street sides get the front setback. Fairfax County still names one front lot line, but the yards between the house and both streets "are deemed to be front yards and the minimum front setback applies" (subsection 5100.2.D(4)).

The address is a separate question. Portland says that on a corner lot "the front door determines which street name your address uses — not the driveway or mailbox." Santa Rosa County, Florida goes the other way when a corner lot's access doesn't match its front door: "Addresses are to be issued on the street where the access is located."

Corner lot setbacks in five codes

Five codes from five states, each for a detached house in one residential zone.

• Raleigh, North Carolina (R-4). Sec. 2.2.1 sets 20 feet from the primary street, 20 feet from the side street, 10 feet from a side lot line and 30 feet from the rear lot line. The minimum lot width is 65 feet, with no separate corner figure in that table.
• San Diego, California (RS-1-14). Table 131-04D (code dated September 2026) lists a 15-foot front setback, a 4-foot side setback and a 10-foot street side setback. The front figure has two listed reductions: to a minimum of 6 feet where at least half of the front 50 feet of lot depth has a slope gradient of at least 25 percent, and by 5 feet, but never under 5 feet, for the portion of a lot that fronts a cul-de-sac (§131.0443(a)(1)). A corner lot must be at least 55 feet wide, against 50 feet for other lots.
• Fairfax County, Virginia (R-1, conventional subdivision). Section 2102 sets a 40-foot front setback and a 20-foot side setback for a single-family dwelling. The minimum lot width is 150 feet for an interior lot and 175 feet for a corner lot. Because both street yards are front yards, the 40 feet applies on both streets.
• Albuquerque, New Mexico (R-1). The R-1 summary in the Integrated Development Ordinance effective May 2026 lists a 10-foot front setback and a side setback of "Interior: 5 ft." and "Street side of corner lots: 10 ft." In Table 5-1-1, one internal side setback may be 0 feet "if the opposite internal side setback is at least 10 ft." Applicable Overlay Zone and Neighborhood Edges standards prevail over the table. In an Area of Consistency, the front setback for new low-density residential development is based on the existing front setbacks of primary buildings on adjacent lots (§5-1(C)(2)(c)).
• Portland, Oregon (R5). Table 110-4 (chapter dated November 1, 2026) sets a 10-foot front setback and a 5-foot side setback. On a corner lot the longer street lot line is a side lot line, so as we read it the side street gets the 5-foot side setback.

Four of the five ask for more room on the street side than on an interior side.

Corner lot fence rules and the sight triangle

Fences on the street side.

• San Diego. §142.0310 says solid fences "located on the front or street side property line shall not exceed 3 feet in height," with a listed exception. In a required yard, the allowed height rises with distance from the line, to 6 feet at the setback line.
• Raleigh. Sec. 7.2.8 covers walls and fences outside a protective yard or required screening area. Outside the IH district, it allows a wall or fence up to 6.5 feet in a front or side street setback, "provided the opacity of the wall or fence above 4 feet in height does not exceed 50%," and it bars chain-link there. In a side or rear setback the limit is 8 feet, unless the fence is adjacent to a street, where the 6.5-foot rule applies. Within 20 feet of a Thoroughfare right-of-way, a fence or wall must be under 42 inches, or sit at least 15 feet from the edge of the right-of-way with evergreen screening that leaves no more than one-fourth of its surface visible from the Thoroughfare within 3 years. One over 42 inches and 20 to 40 feet from that right-of-way needs planting that leaves no more than one-third visible within three years; 40 percent of that planting may be deciduous. The 20-to-40-foot subsection exempts decorative fences that are more than 50 percent open.
• Portland. Section 33.110.275 allows fences up to 3.5 feet in the required front building setback, or between the front lot line and the front of the primary structure if that is less. A corner lot whose main entrance faces the side street may choose a different layout: 3.5 feet within the first 10 feet of the side street lot line, and up to 8 feet in the front setback outside that strip. In that layout, required setbacks abutting a pedestrian connection in a right-of-way less than 30 feet wide stay at 3.5 feet.

The sight triangle. Codes also call it a visibility area or sight distance triangle. It keeps the corner clear so drivers can see.

• Fairfax County. Subsection 5100.2.D(4)(c) forms the triangle from the street lines and a line between two points. The points are 30 feet "from the property lines extended" where the interior angle at the street corner is 90 degrees or more. Below 90 degrees, add "one foot for every ten degrees or fraction by which such angle is less than 90 degrees." Between 3.5 and 10 feet above street grade, the area must be clear of structures and plantings, except a post, column or tree trunk no more than one foot in diameter. The Board may modify the requirement when it approves a rezoning or special exception.
• San Diego. §113.0273 has the City Engineer decide what sight distance a development needs. The typical triangle at a street intersection runs 25 feet along each intersecting property line. Where the required front and street side yards measure less than 25 feet combined, "that measurement or 15 feet, whichever is greater," sets the area. The City Engineer may increase or reduce the distance through a Process One permit review, on public health and safety findings. A separate section, §142.0310(b), says "Fences in visibility areas shall not exceed 3 feet in height."

Where can the driveway go on a corner lot?

Local driveway standards and, on state roads, the state's access rules set the distance from the intersection, often called corner clearance.

• Iowa. The statewide urban design manual, SUDAS Chapter 5L-3, advises that on residential streets "driveways on corner lots should be located on the lesser street and near the property line most distant from the intersection."
• New Jersey state highways. The state's access code, at N.J.A.C. 16:47-3.8(k), measures corner clearance from the end of the intersecting street's curb return to the start of the driveway's curb return or depressed curb. The minimum is 12 feet for single-family residential driveways. Other driveways in the vicinity of unsignalized intersections need 50 feet on access level 6 roadways, roadways posted at 25 miles per hour, or locations with at least a 10-foot shoulder. The minimum is 100 feet in the vicinity of signalized intersections and in locations the first two rules don't cover.

Corner lot pros and cons

Pros

• Streets on two sides. Those sides adjoin no other lot; the neighbor count elsewhere depends on the layout.
• A second street for access. A garage or driveway can face the side street where the access rules allow it.
• Sometimes a wider lot, as in San Diego and Fairfax County.

Cons

• A larger setback on the street side in four of the five codes above.
• Street-facing fence limits to check, and a sight triangle to keep clear.
• More sidewalk where the city makes abutting owners maintain it.
• Traffic on two sides.

Is a corner lot worth more?

We found no reliable published figure for US homes. One agent site we read quotes a percentage premium and credits a journal without naming the article, and we could not trace it.

The one measured result we could read is from New Zealand. An Auckland Council review of housing price studies summarizes a 2009 paper on sales in the former Auckland City during 1997 and 1998: "corner lots fronting a busy road suffer a price discount of 6.5 per cent." That is one city and one period. Compare recent corner and mid-block sales nearby before assuming either direction.

Sidewalks and special assessments on two frontages

Sidewalk duties. Portland City Code 17.28.020 makes the owners of land abutting any street "responsible for constructing, reconstructing, maintaining and repairing the sidewalks, curbs, driveways and parking strips abutting or immediately adjacent to said land," with listed exceptions. A corner lot abuts two streets.

Assessments. When a city charges street or sidewalk work to owners by the front foot, it needs a rule for corner lots. In Appleton, Wisconsin, the city's special assessment page, which links its 2026 Assessment Policy, gives the concrete pavement and sidewalk rule for residential corner lots zoned R-1 or R-2. The shortest side is assessed at 100 percent of the rate. On the other side or sides, the first 120 feet is assessed at 25 percent for R-1 and 50 percent for R-2, and any remaining frontage at 100 percent. On inside corner lots where all sides have equal footage, the addressed side counts as the short side. Work abutting only part of the frontage is assessed on that part. Combined properties that did not meet the corner lot criteria before combining get no corner lot exception.

Buying or developing a corner lot

Run the width arithmetic. These are our simplified rectangles from the listed side setbacks, not a real parcel's building envelope. Take Raleigh's R-4 numbers and a 65-foot-wide lot.

• Interior lot: 65 feet, less 10 feet on each side, leaves 45 feet of buildable width.
• Corner lot: 65 feet, less 20 feet on the side street and 10 feet on the interior side, leaves 35 feet.

The same lot loses 10 feet of width, or 22 percent, by sitting at the corner. Raleigh's residential infill rules may also apply in R-4.

The extra width some codes require can offset this. In San Diego's RS-1-14 zone a 55-foot corner lot less 10 and 4 feet leaves 41 feet, against 42 feet on a 50-foot interior lot. Fairfax County's R-1 numbers give 115 feet on a 175-foot corner lot against 110 feet on a 150-foot interior lot. This rectangular comparison uses Fairfax's standard lot-width measurement: parallel to the front street line at the required minimum front setback. The definition has separate rules for lots over five acres, reverse-frontage lots and through lots. R1 rules differ by city, so run the numbers from the code that applies.

In a subdivision layout. Where the code requires wider corner lots, each corner uses more frontage. San Diego's §113.0246(f) says that when a residential corner lot is resubdivided, the setbacks along the front and street side property lines "shall observe the setback requirements placed on the original lot configuration."

On a commercial corner. Two frontages don't guarantee two full driveways. On Washington's managed access state highways, the WSDOT Design Manual (Chapter 540, September 2024) says a variance access connection permit "must not be issued for an access connection that does not conform to minimum corner clearance requirements." Our guide to commercial zoning covers the use side.

Where it shows up in the documents.

• The recorded plat. Look for building setback lines along both streets and for any easement at the corner. Our guide to reading a plat map walks through one.
• A survey. It locates both street lines on the ground. See how to find property lines.

Before an offer, ask:

1. Which lot line is the front under the zoning code, and does the house or plan match it?
2. What is the street side setback, and what buildable width is left?
3. Where is the sight triangle, and is any fence, wall or hedge inside it?
4. Which street may take the driveway, and how far from the intersection must it be?
5. Who maintains the sidewalk on each street, and is an assessment pending? Public works can say.
6. Does the lot touch both streets with legal access to each? Frontage and access are not the same thing.

If the numbers don't work, a zoning variance is the usual request, and it has its own tests.

Pillar's property search shows a parcel's acreage and zoning with roads drawn on the map. Setbacks, sight triangles and access still come from the code, the plat and a survey.

Quick answers

Which side is the front of a corner lot? Whatever the local code says. Fairfax County, San Diego and Portland use the shorter street line. Raleigh looks at the adjoining lots first.

Are setbacks bigger on a corner lot? Often on the street side. Raleigh's R-4 zone requires 20 feet from the side street against 10 feet from a side lot line.

Can I put a privacy fence on a corner lot? It depends on the local code and which lot line the fence follows. San Diego caps solid fences on the street side property line at 3 feet, with a listed exception, and caps fences in a visibility area at 3 feet. Portland treats a corner lot's longer street line as a side lot line and allows fences up to 8 feet in required side building setbacks, or 3.5 feet where one abuts a pedestrian connection in a right-of-way less than 30 feet wide.

What is a reverse corner lot? In San Carlos, California, a corner lot whose rear abuts the side of another lot. The lot behind it is the key lot.

Is a corner lot worth more? We found no reliable published US figure. Compare local corner and mid-block sales.

Who maintains the sidewalk on a corner lot? It depends on the city. Portland makes abutting owners responsible, with listed exceptions, and a corner lot abuts two streets.