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Small house plans under 1,500 sq ft: what to compare

In a small house every foot of hallway is a foot of room you lose. Two plans with the same square footage can live very differently. Here is how to tell them apart on paper.

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Square footage tells you how much floor a plan has. It does not tell you how much of that floor you can use. In a small house, hallways, awkward corners and doors that swing into the middle of a room add up quickly.

Small plans that work tend to do three things: keep circulation (how you move through the house) short, give every room one clear job, and borrow space from outside with a porch or a view.

A compact plan divided into a day zone for living and kitchen, a short circulation strip, and a night zone with two bedrooms, with a covered porch along the front.

Day zone, night zone and circulation in a compact plan.Diagram, not to scale

What to compare between plans

  1. 01

    How much of the plan is hallway

    Shade the corridors on a printout. The less shading, the more of the square footage you actually live in.

  2. 02

    Where the table goes

    Find the dining table on the plan, then check you can walk around it with the chairs pulled out. Many small plans draw a table that only fits empty.

  3. 03

    Storage you can count

    Count closets, the pantry and any storage under stairs or roof. Small houses run out of storage before they run out of rooms.

  4. 04

    Bedroom doors

    A bedroom door that opens straight onto the living room is efficient and loses privacy. Decide which you need more.

  5. 05

    Laundry location

    A stacked unit in a closet saves a room; a laundry near the bedrooms saves trips. Look at where yours sits.

  6. 06

    The outdoor room

    A covered porch off the living area extends it for much of the year. Check the porch is deep enough on the plan for the furniture you would put there.

Three ways small plans organize space

Bedrooms at each end

What it does

Living space in the middle, one bedroom on each side.

The trade-off

Two short halls instead of one, and the living room is the route between bedrooms.

Suits

Two adults on different schedules, or a guest room kept apart.

Bedrooms off one short hall

What it does

All bedrooms and the bath grouped behind a single door from the living space.

The trade-off

Quiet living space, but bedrooms share walls with each other.

Suits

A young family who wants the kids' rooms close.

Loft or half-story

What it does

A sleeping loft or rooms under the roof above the main living area.

The trade-off

Stairs, and sloped ceilings that reduce usable floor near the walls.

Suits

Cabins, guest space, anyone who does not plan to age in the house.

Trade-offs to expect

  • Open living space feels larger, but leaves fewer walls for furniture, shelves and art.
  • One bathroom saves floor area and becomes the bottleneck on weekday mornings.

Ask before you buy the plan

  1. Is the listed square footage heated area only, or does it include porch and storage?
  2. Can a stacked washer and dryer fit where the plan shows the laundry?
  3. Is a version with a larger porch or an extra closet already drawn?
  4. Does the plan set show furniture, and at what scale?

Plans worth comparing

No verified plans are published for this brief yet. The table appears here once each spec has been checked against the seller's listing.

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