Exterior Design
This compact casita (or accessory dwelling unit) offers **756 heated square feet** in a one-story configuration.
The plan’s overall dimensions are **36 ft wide × 23 ft deep**. 1 The maximum ridge height reaches **16 ft 6 in**.
Exterior walls are framed with **2×4 construction**, with an optional upgrade to **2×6**. The primary roof pitch is **8:12**, and a secondary pitch is **10:12** to introduce visual interest.
A modest **front porch area** softens the front elevation and gives a covered transition into the home.


Interior Layout
You enter into a **mudroom** zone equipped with bench seating and coat hooks—helpful for organization in such a compact footprint.
From that entry zone, the plan unfolds into an **open layout** that combines kitchen, dining, and living. 7 The kitchen includes an **island** for prep, casual seating, and visual separation, yet retains connection with the rest of the living area.
A sliding glass door leads out to the rear of the home from the dining area, enhancing indoor-outdoor flow.
The bedroom lies on the left side of the plan, with a full bathroom just adjacent.Circulation is kept tight and efficient to avoid wasted hallways.
Floor Plan:


Bedrooms & Bathrooms
This casita includes **1 bedroom**.
One **full bathroom** is shared with the living areas; it is located between the bedroom and the open core for convenient access.
Living & Dining Spaces
The living/dining area is inherently integrated, with no rigid separation, which maximizes the sense of openness in a small plan.
Large windows and the rear sliding door bring light deep into the space, helping it feel more expansive.


Kitchen Features
The kitchen is equipped with an **island** that serves for prep and casual dining, a smart choice in a compact layout.
A nearby pantry or storage area is implied to support functional daily use without cluttering the living zones.

Outdoor Living (porch, deck, patio, etc.)
The **front porch** provides a sheltered entry and small outdoor seating opportunity.
The rear sliding door opens to a back patio or deck zone, allowing a direct extension of indoor living.

Garage & Storage
This plan does **not** include a designated garage.
Storage is handled with the mudroom bench area, likely a closet in the bedroom, and kitchen cabinetry. The efficient layout keeps storage integrated.
Bonus/Expansion Rooms
No formal bonus rooms or lofts are included, as this is a single-story, compact ADU design.
Given the simple footprint, future expansion (rear addition or side bay) may be possible depending on lot constraints and local code.

Estimated Building Cost
The estimated cost to build this casita/ADU in the United States ranges between $125,000 – $200,000, depending on location, material quality, finishes, and site conditions.

Plan 623069DJ is a smart, compact ADU or guest house solution. With thoughtful touches like a mudroom, open living with an island, and a sliding door to a rear patio, it feels far more spacious than its 756 sq ft suggests. Ideal for small households, guest suites, or secondary dwelling uses—this design balances utility, charm, and smart space planning.














