Pricing summary
Shell kit
Approximately $15,000–$30,000
Published manufacturer examples for small panelized studios currently fall within or near this range for the primary building shell. Foundation, installation, utilities, site work, permits, and interior completion may be additional.
Examples: Kanga Room Systems, Studio Home (formerly Studio Shed)
Installed shell
Approximately $25,000–$45,000
This may include delivery and assembly of the primary exterior structure. Interior finish, electrical work, heating and cooling, foundation, permits, and site work may remain separate.
Examples: Kanga Room Systems
Finished conditioned studio
Approximately $40,000–$90,000+
A completed, insulated, powered, heated or cooled backyard room can reach this range or higher depending on size, design, windows, doors, finish level, foundation, access, utility distance, regional labor, and permitting.
Examples: Kanga Room Systems, Studio Home (formerly Studio Shed)
These are current published market examples, not national averages or project quotes. Manufacturers define shell, installed shell, and finished scope differently.
Published examples
A few manufacturers publish prices for more than one level of scope, which makes the gap between shell and finished pricing visible. These are list prices as published when we checked them on October 2026; they may exclude foundation, permits, and site work and may change at any time.
| Model | Shell / kit | Installed shell | Finished / turnkey |
|---|---|---|---|
| Kanga Modern Kwik Room 10×12 (120 sq ft) (Source: Kanga Room Systems) | $18,900 | $24,700 | $40,600 |
| Kanga Modern Kwik Room 12×16 (192 sq ft) (Source: Kanga Room Systems) | $22,800 | $33,800 | $51,100 |
| Kanga Cottage Kwik Room 12×16 (192 sq ft) (Source: Kanga Room Systems) | $27,600 | $43,900 | $62,200 |
| Studio Home Signature (80–240 sq ft) (Source: Studio Home (formerly Studio Shed)) | From $17,702 | Installation extra | Interior option extra |
| Studio Home Portland (96–256 sq ft) (Source: Studio Home (formerly Studio Shed)) | From $27,802 | Installation extra | Interior option extra |
Kanga Room Systems states that its installed-shell option is offered in Texas only. Studio Home lists prices plus installation and notes that foundation, site work, and permit fees are the homeowner’s responsibility. Mention of a manufacturer is not an endorsement, and we have no relationship with either company.
Shell kit
A shell kit is the building package: the structure, exterior cladding and trim, roofing, and usually standard windows and a door. It arrives as panels, pre-cut members, or another prefabricated form for someone to assemble on a prepared foundation.
Kits make sense when you are comfortable managing trades yourself or plan to assemble the building with help. Studio Home, for example, describes its base shell kits at roughly $100–$140 per square foot before site work and permits (Source: Studio Home FAQ). Assembly, foundation, insulation, interior finish, electrical, and permits typically remain to be paid for.
Installed shell
An installed shell adds delivery and assembly. You get a weathertight structure, but the interior may be bare and there may be no power, heating, or cooling. Where installed pricing is published, it adds several thousand to more than fifteen thousand dollars over the kit, depending on size and model (Source: Kanga Room Systems pricing).
Finished conditioned studio
A finished conditioned studio is insulated, has an interior finish and flooring, is wired, and is heated or heated and cooled. This is what most people picture when they imagine a backyard office. Published turnkey prices for small 120–200 square foot rooms start around $40,000–$62,000, while the same manufacturer’s larger “ADU & Backyard Studios” line (196–280 square feet, marketed for uses that can include a bath or kitchenette) is listed at roughly $79,000–$96,000 turnkey—before the parts of the project that depend on your particular yard.
Why starting prices can mislead
- They describe the smallest size. “From” prices usually apply to the smallest configuration with standard options.
- They describe one layer. A kit price omits assembly; an installed price often omits the interior; a turnkey price may still omit the foundation and permits.
- They exclude your site. Foundation, access, slope, the distance to your electrical panel, and local permit fees cannot be priced without the property.
- They change. Promotions, freight, and material costs move. Treat any published figure as a snapshot.
Size and price
Larger studios cost more in total but often less per square foot, because delivery, electrical service, the feeder, steps, and permits do not scale with area. The table shows illustrative whole-project planning ranges from the Cost Planner for a simple shed-roof studio on a level, accessible site with no ZIP code supplied.
| Size | Area | Installed shell, whole project | Finished conditioned, whole project |
|---|---|---|---|
| 8 × 10 ft | 80 sq ft | $24,000–$38,000 | $40,000–$58,000 |
| 10 × 12 ft | 120 sq ft | $29,000–$45,000 | $46,000–$65,000 |
| 12 × 14 ft | 168 sq ft | $34,000–$53,000 | $52,000–$74,000 |
| 12 × 16 ft | 192 sq ft | $37,000–$57,000 | $55,000–$79,000 |
| 14 × 18 ft | 252 sq ft | $43,000–$67,000 | $64,000–$90,000 |
| 15 × 20 ft | 300 sq ft | $49,000–$75,000 | $70,000–$100,000 |
Roof, structure, windows, doors, and exterior
Roof and structure
A single-slope shed roof is the most economical and is common on prefab studios. Gable roofs add framing and roofing. Taller walls, heavy snow or wind loads, and long spans or wide openings can all require heavier framing, engineered headers, or stamped drawings.
Windows
Glazing is among the most expensive parts of a wall per square foot. An expanded daylight package can add a few thousand dollars; floor-to-ceiling feature glass can add considerably more and affects structure, privacy, glare, and how hard the room is to heat and cool.
Doors
A single glazed door is the baseline. French doors and sliders add cost; multi-panel folding or sliding glass walls are a premium choice with structural and weather-sealing implications.
Exterior materials
Fiber cement, wood, and metal cladding differ in material cost, installation labor, and maintenance. Upgraded roofing and trim details add further.
Interior finish, insulation, and sound
Interior finish
A basic finish—wall panels or drywall, paint, vinyl plank flooring, and simple trim—is very different in cost from wood ceilings, built-in desks, and custom millwork. In a small room, the finish level can move the total by $10,000 or more.
Insulation
Year-round use requires insulated walls, roof, and floor. Ask for R-values and whether the floor is insulated, since floors over piers are a common weak point.
Sound isolation
Absorption panels make a room sound better but do little to stop sound leaving it. Meaningful isolation for a music room or loud workshop means denser, decoupled, well-sealed construction, better doors and windows, and quiet ventilation—often a significant addition. Professional recording rooms need specialized design.
Electrical and HVAC
Electrical
Electrical cost has two parts: wiring inside the studio, and getting power to it. The second part—trenching and a feeder from your house panel—depends on distance, what the trench must cross, and whether your panel has spare capacity. One manufacturer notes that trenching and hookup to the home are the homeowner’s responsibility (Source: Studio Home FAQ).
Heating and cooling
A single-zone ductless mini-split heat pump is the usual choice for year-round comfort. Electric heaters cost less up front but provide no cooling. Equipment cost depends on capacity, brand, and line-set length.
Foundation, site preparation, delivery, and access
Foundation
Piers, ground screws, or a framed floor on skids are usually the least expensive. Slabs and engineered footings cost more; sloped or poor-soil sites can require elevated foundations, retaining, or engineering. Manufacturers commonly price the foundation separately and require it to be complete before delivery (Source: Studio Home process).
Site preparation
Clearing, grading, removing an old shed or slab, protecting tree roots, and managing drainage are site-specific costs.
Delivery and backyard access
Freight depends on distance and package size. Narrow side yards mean hand-carrying materials, which adds labor; volumetric modules may need a crane. Measure gates, eaves, meters, and air-conditioning units along the route.
Steps, landings, and landscaping restoration
Few prices include the step or landing at the door, a path from the house, or repairing lawn and irrigation after trenching and staging. Budget for them.
Permits, engineering, and design
Permit fees, required drawings, and inspections vary by jurisdiction, size, use, and electrical and mechanical scope. Conditioned, wired studios often need permits even where a small storage shed would not. Custom designs, engineered foundations, or high wind and snow areas may require professional drawings. Read the permit guide.
Regional differences
Labor rates, permit fees, climate-driven insulation and HVAC sizing, freight distance, and sales tax all vary by region. The same studio can differ in installed cost by a meaningful margin between a low-cost and a high-cost metro area. The Cost Planner applies a broad regional adjustment when you enter a ZIP code and a wider national range when you do not.
DIY versus professional installation
Assembling a kit yourself saves installation labor but shifts schedule, quality, and coordination risk to you. Even confident DIYers typically hire licensed trades for the electrical feeder and HVAC, and may need a contractor for the foundation. Check whether DIY assembly affects the manufacturer’s warranty.
Comparing proposals
Line up every proposal against the same scope. This table shows where scope commonly sits:
| Item | May be included | Commonly separate | Question to ask |
|---|---|---|---|
| Building package | Always, but contents vary | Rarely | Which windows, doors, siding, and roofing are standard? |
| Freight | Sometimes, within a service area | Often | How is shipping calculated, and is a liftgate or special delivery extra? |
| Unloading | With installed pricing | With kits | Who unloads, and what if the truck cannot reach the site? |
| Assembly | Installed and turnkey pricing | Kits | Is assembly by the manufacturer, a partner, or someone I hire? |
| Foundation | Occasionally | Commonly | What foundation does the system require, and who designs and builds it? |
| Grading | Rarely | Commonly | Is the site assumed level and accessible? |
| Electrical wiring | Finished packages | Shells and kits | How many circuits, outlets, and lights are included? |
| Feeder from house | Rarely | Commonly | Who trenches and connects to my panel, and is my panel large enough? |
| HVAC | Some finished packages | Commonly | Which unit, what capacity, and who installs it? |
| Insulation | Finished packages and options | Basic shells | What R-values for walls, roof, and floor? |
| Drywall or interior finish | Finished packages | Shells and kits | What wall and ceiling finish, and is it painted? |
| Flooring | Finished packages | Shells and kits | What flooring material, and is the subfloor included? |
| Permit drawings | Some manufacturers provide plans | Often | Will you supply permit-ready drawings or engineering? |
| Permit fees | Rarely | Commonly | Who applies, and who pays fees and inspections? |
| Steps or landing | Rarely | Commonly | How will someone get from grade to the door? |
| Landscaping | Rarely | Commonly | Who repairs lawn, beds, and irrigation after construction? |
| Debris removal | Sometimes | Sometimes | Is cleanup and packaging removal included? |
| Tax | Sometimes | Sometimes | Is sales tax included in the quoted price? |
Questions to ask every supplier
- Is this shell-only?
- Is delivery included?
- Is unloading included?
- Is assembly included?
- Is the foundation included?
- Is grading included?
- Are windows and doors included?
- Is insulation included?
- Is the interior finished?
- Is flooring included?
- Is electrical wiring included?
- Is the feeder included?
- Is HVAC included?
- Are permit drawings included?
- Are permit fees included?
- Are steps or a landing included?
- Is cleanup included?
- Is landscaping restoration included?
- What happens if access is limited?
- Is tax included?
- What is excluded?
Methodology
The three anchor ranges summarize current published manufacturer pricing for small backyard rooms at each level of scope. We opened each source and recorded the figures on October 2026. The Cost Planner’s building-package and assembly allowances are calibrated against the same published prices. Allowances for site work, utilities, regional labor, and permits are planning assumptions, documented on the About page, because no single published source covers them reliably.
The pricing model is versioned (currently 2026.10-1) and saved projects keep the version they were priced with.
Disclosure.Design My Backyard Studio is an independent planning and cost-estimation resource. We are not a studio manufacturer, architect, engineer, contractor, or permitting authority. Estimates are preliminary planning ranges, not bids or guaranteed prices. Final feasibility, zoning, permitting, engineering, site conditions, product selection, and pricing must be confirmed by qualified local professionals.
Sources
- Kanga Room Systems published pricing by model and scopeSeparate shell-kit, installed-shell, and turnkey prices for the same models. Modern Kwik Room 10×12: $18,900 shell kit, $24,700 installed shell, $40,600 turnkey. Modern 12×16: $22,800, $33,800, and $51,100. Cottage 12×16: $27,600, $43,900, and $62,200. The installed-shell option is offered in Texas only.
- Kanga Room Systems definitions of shell kit, installed shell, and turnkey scopeShell kit covers core structural components, siding, and trim. Installed shell adds delivery and shell installation with the interior unfinished. Turnkey adds a finished interior and exterior. The page cites an 8–12 week delivery-and-installation window.
- Studio Home backyard studio models and starting pricesSignature model (80–240 sq ft) listed from $17,702 plus installation, and Portland model listed from $27,802 plus installation. The Signature is described as excluding assembly and site work.
- Studio Home Signature model specifications and inclusionsSizes from 8×10 to 12×20. The finished-interior option is a separate selection with insulation, flooring, and an electrical package. Foundation, site work, and permit fees are the homeowner’s responsibility.
- Studio Home frequently asked questions on cost, permits, and lead timesBase shell kits run roughly $100–$140 per square foot depending on model and size, before site work and permits. Trenching and hookup to the home are the homeowner’s responsibility. Municipalities increasingly require permits for units with electrical.
- Studio Home on how backyard studio costs varyCost depends on the specific design. Shipping is calculated separately. Foundations may be poured concrete or a self-supported joisted floor. Installation may be DIY or by a partner.
- Studio Home installation network overviewAssembly may be DIY or by an installer. Professional assembly may cover foundation preparation, panel assembly, and in some cases decks and interior finishes. Installation is priced separately from the building.
- Studio Home planning, permitting, and installation processPermitted projects move through a site visit, design, permitting (listed as 4–12 weeks), production, and installation (1–2 weeks). Permit fees are the customer’s responsibility. The foundation is estimated separately and must be ready before delivery.
Last reviewed October 2026.