The Cottage ADU Plan
The Cottage ADU Plan
Plan Specifications Table
| Specification | Value |
| Plan Name | The Cottage ADU Plan — V1 |
| Bedrooms | 1 |
| Bathrooms | 1 full |
| Total Living Area | 639 sq ft |
| House Width | 25'-6" |
| House Depth | 28'-0" |
| Stories | 1 |
| Garage | None |
| Foundation Type | Slab |
| Architectural Style | Traditional Cottage |
| ADU Option | Included (Stand-alone ADU) |
| Sheet Count | 8 sheets |
| File Format | PDF (print-ready, 24" × 36") |
| License | Single-build license — one permitted structure |
The Cottage ADU Plan is a 1-bedroom, 1-bathroom, 639 square foot home designed with flexible living in mind. With a classic cottage aesthetic and a layout that can double as an office as well as a guest house, this plan solves the real constraints of urban infill development.
The main level opens to an open-concept kitchen, dining, and living area oriented toward the back yard, maintaining natural light and visual depth on a compact footprint. oversized sliding door near the living area creates an expansive interior feeling. The primary suite occupies the front corner with a cozy walk-in setup, separated from the high-traffic zones for privacy and quiet.
This plan is optimized for 32-foot-wide lots with standard setbacks. It provides a timeless cottage charm ideal for historic neighborhoods or accessory dwelling spaces.
What's Included in This Plan Set
- Architectural Construction Details — Typical wall, roof, floor, foundation, eave, opening, flashing, and other construction details necessary to communicate the design and intended construction.
- Structural Foundation Plan — Foundation layout showing footings, foundation walls, slabs, posts, beams, and other primary structural components.
- Structural Framing Plans — Floor and roof framing information showing joists, rafters, beams, headers, posts, bearing locations, and other structural framing elements.
- Structural Details — Typical structural connections, framing conditions, foundation details, and other information necessary to support construction and permit review.
- Schematic Electrical Plan — Electrical layout showing typical lighting, switches, receptacles, smoke and carbon monoxide alarms, and other common residential electrical locations for permitting and coordination.
- Site Plan Template — A blank site plan diagram sized for the intended lot configuration. Your local surveyor, designer, architect, or civil engineer can use the template to add property lines, setbacks, utilities, topography, driveway locations, and other site-specific information.
- General Construction Notes — Typical construction requirements, material references, installation standards, and code-related notes applicable to the building.
- Energy Compliance Notes — General energy-efficiency requirements and construction notes intended to assist with compliance in many U.S. jurisdictions. Project-specific energy calculations or local compliance documentation may still be required.
- Life-Safety and Code Information — Typical residential code information addressing items such as egress, safety glazing, smoke alarms, carbon monoxide alarms, guards, handrails, and other common code requirements where applicable.
- Door and Window Information — Sizes, types, locations, and related information necessary for coordination and construction, where included in the plan design.
- Drawing Organization — Drawings are professionally organized into a coordinated architectural and structural plan set suitable as the basis for local permit submission. Information will need to be added to meet local compliance.
- Print-Quality PDF Files — High-resolution PDF drawings formatted on 24" × 36" sheets, a standard architectural sheet size accepted by most e-permitting systems and print shops and commonly used for residential permit submissions.
- Immediate Digital Delivery — PDF files are available for download immediately after checkout so you can begin reviewing, pricing, printing, or preparing your project for permitting.
Drawings are delivered digitally via email within minutes of your purchase.
All Infill Plans products are digital downloads. Because our plan sets, CAD files, and related documents contain intellectual property that cannot be physically returned once delivered, all sales are final.
Once a digital file has been purchased, accessed, downloaded, or delivered, we are unable to offer returns, exchanges, or refunds. By completing your purchase, you acknowledge that you are receiving digital intellectual property and that the product cannot be “returned” in the same way as a physical item.
We encourage all customers to carefully review the plan description, square footage, included drawings, licensing terms, and product options before purchasing. If you have questions about whether a plan is appropriate for your project, property, or jurisdiction, please contact us before placing your order.
If there is a technical issue with your download, such as a missing file, corrupted file, or incorrect file delivery, we will make reasonable efforts to correct the issue and provide the proper digital files.
Purchase of a plan does not guarantee permit approval. All plans must be reviewed by the local authority having jurisdiction and may require site-specific modifications, engineering, energy code compliance documentation, or review by a licensed professional in the project jurisdiction.
