Decimal-Acre Reference / Sheet 0.27

0.27 Acres = 11,761 sq ft

The in-between lot: bigger than a quarter acre, short of a third. The math is exact: 0.27 multiplied by 43,560 (the international acre constant since the 1959 IYPA) equals 11,761.2 square feet, or 1,092.65 square metres. It is an odd fraction because it comes from a real lot rounding, not a round number a developer set out to plat.

Acres

Square Feet

1,092.7 m²|0.1093 ha|Generous suburban plot

International foot (post-2022 standard)

Pre-loaded at 0.27 acres. Edit either field to recompute. Use the survey foot toggle for pre-2022 federal land descriptions only.

At a Glance

How big is 0.27 acres, visually?

0.27 acres is 11,761 sq ft, which as a perfect square is about 108 feet on each side. On a map or aerial photo it is roughly the footprint of one detached single-family house plus its driveway, garage, and a front and back yard. Put next to landmarks, 0.27 acres is about a fifth of an American football field, two and a half NBA basketball courts, or about 1.08 times a quarter-acre suburban lot.

As a square

108 x 108 ft

Football field

~20% of one

NBA courts

~2.5 courts

Perimeter walk

~434 ft

To see the same size drawn to scale against other acreages, use the visual reference, or measure a real parcel with the five acre-measuring methods (including free Google Maps).

Square Feet

11,761

international ft²

Square Metres

1,092.65

m²

Hectares

0.1093

Derivation: 0.27 acres × 43,560 sq ft per acre = 11,761.2 sq ft, exactly. The constant 43,560 comes from one surveyor's chain (66 ft) multiplied by one furlong (660 ft), formalised internationally by the 1959 International Yard and Pound Agreement.

Sheet 02 · Scale References

What 11,761 square feet looks like

A 0.27-acre parcel laid out as a perfect square measures about 108.4 feet on each side, with a perimeter of roughly 434 feet, a little over a one-minute walk to circle. Most real 0.27-acre lots are rectangular rather than square: common shapes include 80 ft wide by 147 ft deep, 90 ft by 131 ft, or 100 ft by 118 ft, sized to fit the street grid. The total area is what matters, and 11,761 sq ft sits comfortably in the American single-family suburban range, a step above the quarter-acre standard.

An NBA basketball court

4,700 sq ft

0.27 ac is 2.5× the size

A US doubles tennis court (playing area)

2,808 sq ft

0.27 ac is 4.2× the size

A quarter-acre lot (0.25 acres)

10,890 sq ft

0.27 ac is 1.1× the size

A half-acre lot (0.5 acres)

21,780 sq ft

0.27 ac is 54% of it

A US football field incl. end zones

57,600 sq ft

0.27 ac is 20% of it

The most useful comparison is the quarter acre: a 0.27-acre lot is about 1.08 times a 0.25-acre lot, so if you know what a quarter-acre suburban plot looks like, add roughly 8 percent, about 871 sq ft. Against a half acre, 0.27 acres is a little over half the size. Walking the perimeter of a square 0.27-acre lot covers about 434 feet, a little over a minute at a normal walking pace.

Sheet 03 · What Gets Built on 0.27 Acres

A comfortable single-family parcel

0.27 acres is a step above the typical American new-home lot. The US Census Bureau Survey of Construction reported the median lot size for a newly built single-family detached home at 8,543 sq ft in 2025, which is just under 0.2 acres. An 11,761 sq ft lot is about 38 percent larger than that median, which places it firmly in the roomy suburban range: a full detached house with a real yard rather than a compact infill plot.

On 11,761 sq ft, a detached house with a footprint of around 1,800 to 2,800 sq ft leaves room for a driveway, a front yard, side setbacks, and a usable back yard. A two-storey home can deliver 3,000 or more finished sq ft on that footprint while keeping lot coverage inside the 30 to 40 percent range that most residential zoning districts allow. The margin over a quarter-acre lot is modest but real: enough for a slightly wider side yard or a small patio, though not the extra depth a third-acre lot gives.

The exact buildable envelope depends on three local rules that always sit above the raw acreage: the minimum lot size for the zoning district, the maximum lot coverage, and the required front, side, and rear setbacks. A 0.27-acre lot clears the minimum lot size in the great majority of US suburban single-family zones, which commonly set that floor between 6,000 and 10,000 sq ft, but confirm the specific district before relying on the parcel size. A 0.27-acre lot with 35 percent maximum coverage and standard setbacks can support a ground-floor footprint of roughly 4,100 sq ft.

Because it is served by municipal sewer in almost every case at this size, a 0.27-acre lot is common in postwar and later subdivisions platted at roughly three or four homes to the gross acre before streets and easements are deducted, sitting between the denser quarter-acre grids and the roomier third-acre developments.

Sheet 04 · Why 0.27 Acres Shows Up in Records

Where the odd fraction comes from

If you searched ".27 acres" you almost certainly read it on a listing, a tax assessor record, a plat, or a survey. Unlike a quarter acre or a third of an acre, 0.27 is not a round fraction a developer sets out to plat. It shows up because a real lot's measured square footage happens to round to 0.27, and county assessors report acreage to two decimal places. Several ordinary lot dimensions land there:

80 ft by 147 ft (11,760 sq ft, 0.2700 acres): a standard suburban frontage and depth that lands almost exactly on 0.27 acres.
90 ft by 131 ft (11,790 sq ft, 0.2707 acres): a wider-frontage lot, common in ranch-style subdivisions, that rounds to 0.27.
100 ft by 118 ft (11,800 sq ft, 0.2709 acres): a broad, shallow lot that also displays as 0.27 acres on a county record.

Any parcel between about 11,543 and 11,975 sq ft rounds to 0.27 acres on a public-record search, because most US assessor offices report acreage to two decimal places. So a lot listed as 0.27 acres can be anywhere in a 430 sq ft band. If precision matters, for example when calculating price per square foot or checking a lot-coverage ratio against the zoning maximum, pull the recorded plat and use the survey-grade square footage rather than the rounded acreage.

Watch the boundaries with the round fractions on either side. A quarter acre is 0.25 acres (10,890 sq ft) and a third of an acre is 0.3333 acres (14,520 sq ft), so a 0.27-acre lot is 871 sq ft larger than a quarter acre and 2,759 sq ft short of a full third. On a rounded record a 0.265-acre parcel and a 0.274-acre parcel both show as 0.27 while differing by more than 400 sq ft, so treat the two-decimal figure as a label, not a measurement.

Adjacent Decimal-Acre Pages

Nearby acreages

0.25 ac

10,890 sq ft

0.30 ac

13,068 sq ft

0.50 ac

21,780 sq ft

1.00 ac

43,560 sq ft

Sheet 05 · Common Questions

Frequently asked, 0.27-acre edition

Exactly how many square feet is 0.27 acres?

0.27 acres equals exactly 11,761.2 square feet, using the international acre standard of 43,560 sq ft per acre defined by the 1959 International Yard and Pound Agreement. The arithmetic is 0.27 multiplied by 43,560. In square metres the equivalent is 1,092.65 sq m, and in hectares it is 0.1093.

How big is 0.27 acres visually, or on a map?

Visually, 0.27 acres (11,761 sq ft) is a square about 108 feet on each side. On a map or aerial photo it is roughly the footprint of one detached single-family house together with its driveway, garage, and a front and back yard. Against familiar landmarks it is about a fifth of an American football field, two and a half NBA basketball courts, or about 1.08 times a quarter-acre suburban lot. Walking the perimeter of a square 0.27-acre parcel covers about 434 feet, a little over a minute at a normal pace.

Why does 0.27 acres show up on property records?

0.27 is not a round fraction a developer aims for, unlike a quarter acre or a third of an acre. It appears on a listing or assessor record when a real lot's measured square footage happens to round to 0.27. County assessors report acreage to two decimal places, so any parcel between about 11,543 and 11,975 sq ft displays as 0.27 acres. Common lot shapes that land there include 80 ft by 147 ft (11,760 sq ft), 90 ft by 131 ft (11,790 sq ft), and 100 ft by 118 ft (11,800 sq ft).

Is 0.27 acres a good size to build a house on?

0.27 acres (11,761 sq ft) is a comfortable single-family lot, about 38 percent larger than the US median for a newly built detached home, which the US Census Bureau Survey of Construction reported at 8,543 sq ft in 2025. It holds a detached house of 2,000 to 3,000 sq ft with a driveway, front yard, side yards, and a usable back yard once setbacks and lot-coverage limits are applied. Confirm the zoning district's minimum lot size, setbacks, and maximum lot coverage before relying on the parcel size.

How does 0.27 acres compare to a quarter acre and a third of an acre?

A quarter acre (0.25 acres) is 10,890 sq ft, so 0.27 acres (11,761 sq ft) is about 1.08 times a quarter-acre lot, roughly 8 percent larger, or 871 sq ft more. A third of an acre (0.3333 acres) is 14,520 sq ft, so 0.27 acres is about 81 percent of a third-acre lot. On a rounded assessor record a 0.27-acre parcel and a 0.25-acre parcel can look one decimal apart yet differ by well under a thousand square feet.

How does 0.27 acres compare to a basketball court or a football field?

An NBA regulation basketball court is 4,700 sq ft, so 0.27 acres (11,761 sq ft) is about 2.5 times the size of an NBA court, two and a half courts. A US doubles tennis court playing area is 2,808 sq ft, so 0.27 acres is roughly 4.2 tennis courts. A full American football field including both end zones is 57,600 sq ft, so 0.27 acres is about 20 percent of the field, roughly a fifth.

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