Two Story 1BR/1BA 25×14 Long

658 SQFT, 1 BED, 1 BATH

  • Floor Plan
  • Front Perspective
  • Rear Perspective
  • Left Side
  • Right Side
  • Top View

Two Story 1BR/1BA 25×14 Long

658 SQFT, 1 BED, 1 BATH

Plan status: Local Approval Required

1 Bedroom

1 Bath

Long

658 SQFT

25′ × 14′

2 Stories

Customize any design to suit your individual needs.

Adjustment options available for your perfect ADU.

In-house designers will adapt any layout to your exact requirements.

Compare this 658 sq ft 1-bedroom ADU with 1 bathroom and explore the floor plan alongside its exterior views.

Plan description

Two Story Tiny House Floor Plans: Maximizing Space & Functionality

Our 2 story tiny house plans are designed to add square footage while maintaining a compact footprint, perfect for properties with limited space. This two-story unit is under 700 sq ft, featuring one bedroom and one bathroom. With a narrow width of just 14 feet, it fits easily into smaller backyards, providing flexible living arrangements without compromising on comfort.

Read less Read more

Smart & Flexible Two Story Layout

This 2 story tiny home plan offers efficient, flexible living spaces that make the most of its compact design. The ground floor features an open-concept living room and a full 12-foot kitchen, ideal for daily living and entertaining. Upstairs, a spacious bedroom with a large closet and a full ensuite bathroom provides privacy and comfort.

Key Layout Features:

  • Open Living Space: The first floor combines the living room and kitchen for a welcoming, multifunctional area.

  • Full 12′ Kitchen: Enjoy a well-equipped kitchen with ample counter space and storage options.

  • Private Second-Floor Suite: The upper-level bedroom includes a large closet and a full ensuite bathroom for added convenience.

  • Narrow Design: With typical ADU setbacks of 4′ from the property line and 6′ from the main home, you just need 24 feet of room in your yard. Setbacks may vary depending on your city.

Benefits of Building a Two Story Tiny Home

Opting for 2 story tiny home plans allows you to increase square footage without taking up extra ground space. This design is ideal for homeowners seeking efficient use of limited property space while creating a comfortable living environment.

Key Benefits:

  • Maximized Space: 2 stories offer more living area without expanding the home’s footprint.

  • Cost Savings: Units under 750 sq ft avoid impact fees, reducing permit costs. Read more about ADU permit fees.

Can I Build a Two Story Tiny Home?

Yes, many municipalities in Greater Los Angeles allow 2 story ADUs. Cities such as Los Angeles, Oceanside, Chula Vista, Encinitas, and Escondido permit them, sometimes with reduced setbacks. Height limits may vary by city, with detailed rules for units over garages. State height limitations for detached ADUs range from 16 to 18 feet, but some cities may allow even taller ADUs. See your local ADU regulations.

Building a 2 story tiny home can be an excellent way to maximize space, especially in areas with limited lot sizes or specific zoning requirements. With the right guidance, you can create a versatile, functional living space that meets local regulations and your needs. Check out our two-story ADU guide and see more two-story ADU plans.

Our floor plans provide efficient, flexible, and stylish living in a compact design. Let Uni Construction help you create a 2 story ADU that fits your lifestyle and maximizes your property’s potential.

The ROI of your 658 sq ft ADU in real time

A 658 sq ft 1-bedroom ADU can serve different goals: a separate home for family, space for guests or a potential long-term rental. This layout lists 658 sq ft, 1 bedroom, 1 bathroom and 2 stories. Before comparing rental income, consider who would use the home and how the entrance, outdoor space and access would work alongside your main residence. Use the calculator to compare estimated annual rent with your project price. Adjust both figures to explore your own scenario.

$
$

Total Return On Your ADU Investment

12.0%

Compare to other investments:

Real Estate

Avg. 6–8%

Stocks

Avg. 5–7%

Savings Account

Avg. 2–4%

Illustrative comparison ranges. Calculator shows gross annual rent divided by project price, before expenses, financing and taxes. Figures are editable examples, not a quote or guaranteed return.

658 sq ft 1 bedroom ADU: Front Perspective

A tip from our CEO

MK

For this 658 sq ft 1-bedroom ADU, start by deciding which spaces need privacy and which should connect. Mark the route from the entrance to the living area, then check how it passes the bedrooms and bathrooms. Consider window placement, storage and everyday furniture at the same time so changes to one room do not compromise the rest of the home.

Key details of this 658 sq ft 1-bedroom ADU

This 658 sq ft 1-bedroom ADU lists 1 bathroom and 2 stories.

658 sq ft 1 bedroom ADU: Floor Plan

1 bedroom

Review sleeping space, furniture placement and the route to the bathroom in this 1-bedroom drawing.
658 sq ft 1 bedroom ADU: Front Perspective

1 bathroom

The source lists 1 bathroom. Review the drawing for fixture positions, access and any changes you would like to discuss.
658 sq ft 1 bedroom ADU: Rear Perspective

658 sq ft

The listed floor area is 658 sq ft. Confirm the final measurement and site fit during drawing development.
658 sq ft 1 bedroom ADU: Left Side

2 stories

This is listed as a 2-story arrangement. Review entrances, circulation and its relationship to surrounding structures.
658 sq ft 1 bedroom ADU: Right Side

Layout and circulation

Trace the route from the entrance to the kitchen, bathroom and sleeping space. Check furniture clearances and door swings on this 658 sq ft drawing before deciding whether an opening or partition should move.
658 sq ft 1 bedroom ADU: Top View

A starting point for your property

Use this 658 sq ft 1-bedroom ADU to discuss orientation, openings and the details that need to be coordinated for your address.

Look at the possibilities

Is this 658 sq ft 1-bedroom ADU right for you?

Compare the layout with how you intend to use the home. These are planning questions, not promises of approval or rental returns.

The room arrangement

Compare the recorded 658 sq ft area and 1 bedroom with the room relationships shown in the drawing. Use furniture, storage and access needs to assess whether this layout suits your household.

The size of the home

Consider whether 658 sq ft suits the occupants, furniture and storage you have in mind.

Bathrooms and access

Review how the 1 bathroom is reached from the living and sleeping spaces.

Outdoor relationships

Compare the front and rear views of this 658 sq ft 1-bedroom ADU with the access, privacy and outdoor space on your own property.

Designed around your property

Adapt the plan to your property

Local Approval Required

The status for this 658 sq ft 1-bedroom ADU is Local Approval Required. The layout does not establish approval for your address.

Start with the site

Use the 658 sq ft layout and the floor-plan drawing to discuss property boundaries, access, utility routes and orientation.

Coordinate your changes

Review changes to rooms, openings or finishes together with the drawings and technical coordination they require.

Plan smart. Build right.

What to check before planning this 658 sq ft ADU

Use the 1-bedroom plan as a reference while gathering the information for your property.

Your address and jurisdiction

Confirm which local authority reviews the property and which requirements need checking for the proposed design.

The proposed footprint

The drawing is listed as long. Its recorded dimensions are 25′ × 14′. Review the drawing against a measured site plan.

Entrances and connections

Discuss access, privacy and the route for water, drainage and electrical connections.

The approval status

Local Approval Required. Complete the property-specific review and submission process before treating a plan as ready to build.

Room for your next chapter

Plan your 658 sq ft around everyday life

658 sq ft 1 bedroom ADU: Rear Perspective

Family living

Consider how the 1-bedroom arrangement could support the family members who would use the home.

Independent space

Review whether the 658 sq ft layout provides the living space and privacy your household needs.

Potential rental use

Discuss the intended use and applicable requirements before making assumptions about rental eligibility or income.

Long-term flexibility

Consider furniture, circulation and changing household needs when discussing revisions to the drawing.

Your path to a 658 sq ft 1-bedroom ADU

Move from a reference layout to a property-specific proposal with the relevant design and approval steps.

1

Discuss your property

Bring your address and your goals for this 658 sq ft 1-bedroom ADU to a 30-minute consultation.

2

Review the layout

Discuss the site information and the changes to investigate in the floor plan.

3

Develop the drawings

Coordinate the design documents and the technical information needed for the proposed project.

4

Review and plan the next step

Work through local review and the project scope before planning construction.

Frequently asked questions about this 658 sq ft 1-bedroom ADU

Explore the layout, customization, budgeting and property considerations for this 658 sq ft plan. Start with the drawing, then check how the design would work at your address.

How many bedrooms and bathrooms does this 658 sq ft plan have?

This layout lists 658 sq ft, 1 bedroom, 1 bathroom and 2 stories. Use the drawing to compare the relationship between the sleeping space, bathroom, kitchen and living area.

What are the dimensions of this 658 sq ft 1-bedroom ADU?

The recorded overall dimensions are 25′ × 14′, and the listed area is 658 sq ft. Overall dimensions and floor area describe different things, especially where a building has an irregular outline or more than one level. Use the dimensioned drawing when checking the footprint, and confirm dimensions in the final coordinated drawings before construction.

Is this a pre-approved ADU plan?

The status of this 658 sq ft 1-bedroom ADU is Local Approval Required. The drawing is a starting point for a property-specific design, not an approval for your address. Site placement, utilities, access and the final construction documents still need to be reviewed. An approval held by a reference plan elsewhere does not establish approval for your property.

Can I customize this 658 sq ft floor plan?

Yes, changes can be explored during design. Start with the rooms and features you want to retain, then identify what needs to change. Moving walls, changing windows or rearranging plumbing can affect several parts of the drawing, so review those changes together rather than treating each as an isolated edit.

What should I bring to a 30-minute consultation?

Bring your property address, available site drawings, photos of the existing home and a short list of goals. Tell us why this 658 sq ft 1-bedroom ADU appeals to you and what you would change. Information about access, existing structures and utility locations helps make the conversation more specific, even if you do not yet have a complete set of plans.

How much would it cost to build this 658 sq ft 1-bedroom ADU?

The 658 sq ft area alone is not enough to price construction. Access, ground conditions, utility work, the selected building system and finishes all affect the scope. Request a property-specific estimate that separates design, engineering, permit fees, site preparation and construction. The images on this page do not establish a construction price or a guaranteed total budget.

How long would design, approval and construction take?

The schedule for this 658 sq ft 1-bedroom ADU depends on the property, the extent of customization and the required reviews. Separate the schedule into design, engineering coordination, permit review, site preparation and building work. Ask which decisions or records are needed before each stage begins. A schedule for another property is not a reliable completion promise for yours.

Can this layout work for a family member or multigenerational living?

This layout lists 658 sq ft, 1 bedroom, 1 bathroom and 2 stories. Discuss the intended resident’s daily routine before choosing the final arrangement. Check privacy, access to the bathroom, kitchen use and the relationship to the main home. If step-free access or other mobility needs matter, raise them at the start so the entrance, clearances and fixtures can be considered as part of the design.

Can I use part of the home as an office or flex space?

A workspace needs to fit without displacing the essential living and sleeping functions. Consider a desk location, daylight, storage and how the work area can be separated at the end of the day. The 658 sq ft drawing should be reviewed around the actual activities you need the home to support.

Does this plan automatically fit my backyard?

No. The recorded dimensions of 25′ × 14′ are only one part of a fit check. The design team also needs to understand the property boundaries, existing buildings, required access, utilities and applicable development standards. A clear area in a photograph does not establish a buildable envelope. Review the building placement on a measured site plan.

Could this be used for a garage conversion?

This page presents a 658 sq ft floor-plan layout, not a confirmation that an existing garage can accommodate it. A conversion starts with the actual garage dimensions and condition. Structure, floor levels, openings and services need assessment before deciding what can stay. Compare the existing building with this drawing before assuming that the same footprint or room arrangement will transfer.

How should I plan the kitchen, bathroom and laundry?

Review appliance sizes, door swings, storage and the space needed to use fixtures comfortably. Check where water, drainage, electrical and ventilation services would run. Keeping a preferred room arrangement is useful only if the coordinated design can support the way those spaces will be used.

Can the entrance or windows be repositioned?

Entrance and window changes can be explored when adapting this 658 sq ft 1-bedroom ADU. Consider privacy from the main home, the approach from the street, daylight and furniture placement. Moving an opening can also affect the wall and the surrounding design. Review it with the site layout and coordinated drawings rather than relying on the preview image alone.

Will this plan require additional parking?

Parking needs to be checked for the property and proposed ADU type. This 658 sq ft drawing does not establish a parking requirement or an exemption for your address. Include existing parking, driveways and the proposed access route in the site review. Confirm the applicable requirements with the reviewing authority before fixing the building placement.

How can I compare this layout with other ADU floor plans?

Start with the actual 658 sq ft area, the bedroom and bathroom count, and the recorded dimensions of 25′ × 14′. Then compare the kitchen, storage, privacy and access to each room. A larger advertised area does not by itself mean a better fit. Use the floor plan alongside the exterior views, and shortlist the layouts that support your intended use and property.

How does this layout compare with two story tiny house floor plans?

This plan has 658 sq ft, 1 bedroom and 1 bathroom. When comparing two story tiny house floor plans, distinguish a permitted ADU from a tiny home on wheels. This page presents an ADU floor-plan option; local approval is required.

Compare related floor plans

1 BR | 1 BA

In-house designers will adapt any layout to your exact requirements.

663 SF

1 Bed

1 Bath

1 BR | 1 BA

In-house designers will adapt any layout to your exact requirements.

650 SF

1 Bed

1 Bath

1 BR | 1 BA

In-house designers will adapt any layout to your exact requirements.

649 SF

1 Bed

1 Bath