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1.5 Story architecture

236 plans · Curated since 2002

1.5 Story.

1.5 Story house plans blend the charm of traditional architecture with smart space utilization, featuring living areas on the main floor and additional rooms tucked beneath sloped rooflines above.

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New arrivals

The four newest 1.5 Story plans.

Prairie View — Beach-Lake

Prairie View

~~$1,799~~$1,529

Plan #30587

2 bd3 ba2,609 sqft2 bays

San Marco — Bermuda

San Marco

~~$2,199~~$1,869

Plan #30927

4 bd5 ba4,237 sqft2 bays

Bluemont Hill — Modern Cottage

Bluemont Hill

~~$2,199~~$1,869

Plan #30819

5 bd5 ba4,223 sqft3 bays

Willow Ridge — Modern Cottage

Willow Ridge

~~$2,199~~$1,869

Plan #30186

4 bd4 ba4,258 sqft3 bays

All plans

The complete 1.5 Story collection.

Refine by bedrooms, bathrooms, square footage, or price. We have 236 plans in this style.

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Showing 48 of 236 plans

Stillwater — Barndominium house plan by Advanced House Plans

Stillwater

~~$1,899~~$1,614

4 bd4 ba3,205 sqft3 bays

Arlington Heights — Barndominium house plan by Advanced House Plans

Arlington Heights

~~$1,899~~$1,614

4 bd3 ba3,293 sqft3 bays

Hazelwood — Barndominium house plan by Advanced House Plans

Hazelwood

~~$1,699~~$1,444

3 bd3 ba2,332 sqft2 bays

Byrdstown — Farmhouse house plan by Advanced House Plans

Byrdstown

~~$1,699~~$1,444

4 bd3 ba2,588 sqft

Longhorn Ranch — Barndominium house plan by Advanced House Plans

Longhorn Ranch

~~$2,199~~$1,869

5 bd4 ba4,450 sqft3 bays

Vaughan — French Country house plan by Advanced House Plans

Vaughan

~~$2,399~~$2,039

5 bd6 ba4,817 sqft3 bays

Buckingham — Modern Cottage house plan by Advanced House Plans

Buckingham

~~$1,999~~$1,699

4 bd4 ba3,854 sqft3 bays

Kasper — Beach-Lake house plan by Advanced House Plans

Kasper

~~$1,899~~$1,614

3 bd4 ba3,498 sqft2 bays

Bryson Hill — Barndominium house plan by Advanced House Plans

Bryson Hill

~~$1,899~~$1,614

5 bd4 ba3,486 sqft4 bays

Crossville — Barndominium house plan by Advanced House Plans

Crossville

~~$1,899~~$1,614

5 bd5 ba3,302 sqft3 bays

Cottonwood Creek — Barndominium house plan by Advanced House Plans

Cottonwood Creek

~~$1,799~~$1,529

4 bd3 ba2,734 sqft3 bays

Broken Bow — Barndominium house plan by Advanced House Plans

Broken Bow

~~$1,899~~$1,614

4 bd4 ba3,371 sqft4 bays

Chateau Chambord — Modern Cottage house plan by Advanced House Plans

Chateau Chambord

~~$2,399~~$2,039

5 bd5 ba4,774 sqft6 bays

Hickory Grove — Traditional house plan by Advanced House Plans

Hickory Grove

~~$1,799~~$1,529

3 bd4 ba2,758 sqft

Mulholland Drive — Modern Cottage house plan by Advanced House Plans

Mulholland Drive

~~$2,399~~$2,039

5 bd5 ba4,736 sqft5 bays

Gillette — Barndominium house plan by Advanced House Plans

Gillette

~~$1,999~~$1,699

6 bd5 ba3,991 sqft3 bays

Grandview — Modern Cottage house plan by Advanced House Plans

Grandview

~~$2,399~~$2,039

5 bd5 ba4,987 sqft5 bays

Weatherford — Texas Hillside house plan by Advanced House Plans

Weatherford

~~$2,199~~$1,869

5 bd4 ba4,139 sqft2 bays

Clear Creek — Barndominium house plan by Advanced House Plans

Clear Creek

~~$1,899~~$1,614

4 bd4 ba3,476 sqft4 bays

Smith Lake — Beach-Lake house plan by Advanced House Plans

Smith Lake

~~$1,699~~$1,444

3 bd4 ba2,574 sqft2 bays

Lynnville — Farmhouse house plan by Advanced House Plans

Lynnville

~~$1,599~~$1,359

3 bd3 ba2,192 sqft2 bays

Elkhorn Valley — Barndominium house plan by Advanced House Plans

Elkhorn Valley

~~$1,599~~$1,359

3 bd3 ba2,155 sqft3 bays

Redwater — Barndominium house plan by Advanced House Plans

Redwater

~~$1,899~~$1,614

4 bd3 ba3,292 sqft2 bays

Fitzpatrick — Modern Cottage house plan by Advanced House Plans

Fitzpatrick

~~$2,699~~$2,294

5 bd4 ba5,116 sqft6 bays

Morganfield — Barndominium house plan by Advanced House Plans

Morganfield

~~$1,499~~$1,274

3 bd3 ba1,997 sqft4 bays

Anastasia — Modern Cottage house plan by Advanced House Plans

Anastasia

~~$2,399~~$2,039

5 bd5 ba4,650 sqft5 bays

Gallatin — Barndominium house plan by Advanced House Plans

Gallatin

~~$1,699~~$1,444

4 bd3 ba2,557 sqft3 bays

Henderson Heights — Barndominium house plan by Advanced House Plans

Henderson Heights

~~$1,999~~$1,699

6 bd5 ba3,551 sqft4 bays

Willowbank — Beach-Lake house plan by Advanced House Plans

Willowbank

~~$1,999~~$1,699

4 bd4 ba3,984 sqft4 bays

Summit — Modern Prairie house plan by Advanced House Plans

Summit

~~$1,699~~$1,444

4 bd3 ba2,499 sqft2 bays

Cyprus Run — Barndominium house plan by Advanced House Plans

Cyprus Run

~~$1,699~~$1,444

4 bd3 ba2,480 sqft

Chalk Ridge — Modern Cottage house plan by Advanced House Plans

Chalk Ridge

~~$1,899~~$1,614

3 bd4 ba3,451 sqft3 bays

Apple Valley — Barndominium house plan by Advanced House Plans

Apple Valley

~~$1,399~~$1,189

2 bd3 ba1,565 sqft3 bays

Parkridge — Modern Cottage house plan by Advanced House Plans

Parkridge

~~$2,399~~$2,039

3 bd5 ba4,589 sqft5 bays

White Plains — Barndominium house plan by Advanced House Plans

White Plains

~~$1,899~~$1,614

4 bd4 ba3,359 sqft4 bays

Vanderbilt — Modern Cottage house plan by Advanced House Plans

Vanderbilt

~~$2,399~~$2,039

5 bd4 ba4,714 sqft4 bays

Elms — Modern Cottage house plan by Advanced House Plans

Elms

~~$2,199~~$1,869

4 bd5 ba4,271 sqft2 bays

West Haven — Modern Cottage house plan by Advanced House Plans

West Haven

~~$1,999~~$1,699

4 bd4 ba3,541 sqft3 bays

Battle Creek — Barndominium house plan by Advanced House Plans

Battle Creek

~~$1,899~~$1,614

4 bd4 ba3,064 sqft4 bays

Sadie — Modern house plan by Advanced House Plans

Sadie

~~$2,199~~$1,869

4 bd4 ba4,092 sqft2 bays

Magnolia Park — Barndominium house plan by Advanced House Plans

Magnolia Park

~~$1,699~~$1,444

3 bd3 ba2,484 sqft2 bays

Indian Creek — Barndominium house plan by Advanced House Plans

Indian Creek

~~$1,899~~$1,614

4 bd3 ba3,333 sqft2 bays

Smithville — Barndominium house plan by Advanced House Plans

Smithville

~~$1,799~~$1,529

4 bd3 ba2,898 sqft3 bays

Live Oak — Craftsman house plan by Advanced House Plans

Live Oak

~~$1,999~~$1,699

4 bd5 ba3,767 sqft4 bays

Wartrace — Barndominium house plan by Advanced House Plans

Wartrace

~~$2,199~~$1,869

4 bd3 ba4,488 sqft3 bays

Atwood — Modern Farmhouse house plan by Advanced House Plans

Modern Farmhouse

Atwood

~~$1,899~~$1,614

4 bd4 ba3,429 sqft

Fort Worth — Modern Cottage house plan by Advanced House Plans

Fort Worth

~~$2,699~~$2,294

5 bd6 ba5,207 sqft4 bays

Hudson Bend — Modern Farmhouse house plan by Advanced House Plans

Modern Farmhouse

Hudson Bend

~~$1,899~~$1,614

5 bd4 ba3,124 sqft2 bays

Showing 48 of 236

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About the style

1.5 Story

A short history

1.5 Story house plans blend the charm of traditional architecture with smart space utilization, featuring living areas on the main floor and additional rooms tucked beneath sloped rooflines above. These versatile floor plans maximize square footage by incorporating finished space into what would typically be attic area, creating cozy upper-level bedrooms, bonus rooms, or home offices.

The main floor typically showcases open-concept living spaces with primary bedroom suites, while dramatic vaulted ceilings and abundant natural light create an airy atmosphere. Upstairs, dormer windows and varied ceiling heights add architectural interest while providing comfortable living space. Most 1.5 Story designs feature 2-4 bedrooms total, with 1-2 bedrooms on each level.

Modern 1.5 Story homes adapt classic layouts for contemporary living with features like first-floor primary suites, home offices, mudrooms, and spacious kitchen islands. Many plans incorporate flex spaces that can serve as playrooms, craft areas, or guest suites. Energy-efficient details like strategic window placement and improved insulation make these homes both comfortable and economical.

Perfect for growing families and multi-generational living, 1.5 Story plans offer the ideal balance between ranch-style convenience and two-story spaciousness. Their distinctive rooflines and dormers create exceptional curb appeal, while smart space planning ensures every square foot serves a purpose. These homes excel on narrow lots where maximizing vertical space is essential, and their versatile layouts can accommodate changing needs over time.

Common design elements include centrally-located staircases, built-in storage solutions, and thoughtful traffic patterns that maintain privacy between living areas. Many plans feature covered porches, attached garages, and outdoor living spaces that extend the home's functionality. With their efficient use of space and timeless appeal, 1.5 Story house plans continue to be a popular choice for both traditional neighborhoods and contemporary developments.