Custom House Plans
Custom floor plans, elevations, sections and construction drawings developed around your lot, layout goals, building program and budget.
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House Plan Drafting · Utah
House Plan Drafting Services in Utah
Custom house plans, floor plans, additions, remodel drawings and construction documents for Utah homeowners and builders—with in-house engineering coordination when your project requires it.
House plans start at $1,800.
Ludlow Engineering has provided drafting and engineering services
in Utah since 1975, with one team able to coordinate the drawings,
site information and structural engineering needed for your project.
$1,800+
Custom house plans starting
6–10 Weeks
Typical full custom plan timeline
Since 1975
Drafting and engineering in Utah
One Team
Drafting + engineering coordination
Direct answer
What Is House Plan Drafting?
House plan drafting turns your ideas, sketches, dimensions and site requirements into accurate construction drawings. A complete residential plan set may include floor plans, exterior elevations, building sections, roof plans, schedules, construction details and other drawings required for your builder or permit application.
01 · Start with the project
What Kind of House Plans Do You Need?
You do not need to know the technical name of every drawing before calling. Start with what you are building or changing, and the plan scope can be built around that goal.
Additions & Remodels
Drawing packages for room additions, second-story expansions, major remodels, garage conversions and other residential changes.
Explore renovation plans →Floor Plan Drafting
Accurate scaled floor plans when you need a focused drawing deliverable rather than a complete architectural and engineering package.
See drafting deliverables →ADU Plans
Plan sets for attached and detached accessory dwelling units, coordinated to the requirements of the local Utah jurisdiction.
Discuss an ADU →Shops & Garages
Drafting for detached garages, shops, barns and other residential accessory structures, with structural engineering where required.
Request a quote →Production House Plans
House-plan drafting and plan variations for Utah builders managing multiple lots, models or repeat residential construction.
Builder drafting →
Drawing + engineering coordination
A Floor Plan Is Only One Part of a Buildable Plan Set.
The floor plan shows how spaces connect horizontally. Elevations show what the building looks like from the outside. Sections explain how the structure comes together vertically. Details communicate conditions that cannot be understood from the floor plan alone. When structural engineering is required, those architectural drawings must also coordinate with the engineered foundation and framing design.
02 · Define the deliverables
What’s Included in a Utah House Plan Package?
Every project is different, so Ludlow defines the drawing scope in the proposal. A complete residential project can combine architectural drafting with structural engineering where required.
Architectural drafting
House Plan Drawings
Cover sheet and drawing index
Dimensioned floor plans
Exterior elevations
Building sections
Roof plan
Wall and construction details
Door and window schedules when included
Site-related information when included in scope
When engineering is required
Structural Engineering
Engineered foundation plans
Floor, wall and roof framing design
Beam and header sizing
Structural load calculations
Lateral-force design where required
Connection details where required
Utah PE stamp on engineered sheets
Responses to structural plan-check comments when included
03 · From paper to construction
House Plans for New Homes, Remodels & Builders
The drawing package should match the project rather than forcing every client into the same set of sheets.
New Construction Homes
Start with your lot, layout goals, approximate size and architectural direction. Ludlow can develop the drawings and coordinate structural engineering into a construction-ready package.
Additions, Remodels & Existing Homes
Existing conditions matter. Remodel and addition projects may begin with measured drawings so the proposed work can be tied accurately into the existing home.
04 · From idea to drawings
Our House Plan Drafting Process
The goal is to resolve important design decisions early, coordinate the technical work and produce drawings your builder and reviewing jurisdiction can understand.
1
Project Scope
Tell us what you are building, where the property is located and what drawings, sketches or site information already exist.
2
Concept & Layout
Develop the floor-plan direction, size, room relationships and major exterior design decisions.
3
Design Review
Review preliminary floor plans and elevations and resolve revisions before the construction-document phase.
4
Construction Documents
Complete the drawing set and coordinate the structural engineering or other project disciplines included in the scope.
5
Delivery & Support
Receive the completed plans and, when included, support for questions or plan-check comments during permitting.
05 · Utah house plan costs
House Plan Drafting Pricing
House-plan cost depends primarily on project size, complexity, how much customization is required and whether structural engineering is included.
| Project Type | Typical Scope | Published Planning Range |
|---|---|---|
| Existing-plan modification | Changes to a stock plan or previous drawing set | $800–$2,000 |
| Custom home under 2,500 sq ft | Custom architectural drafting with engineering coordination | $1,800–$4,500 |
| Custom home 2,500–5,000 sq ft | Larger custom architectural and engineering package | $3,500–$7,500 |
| Luxury / complex custom home | 5,000+ sq ft, multiple levels or complex design | $6,500+ |
| Addition or major remodel | Existing-condition drawings plus proposed construction documents | $1,500–$4,500 |
| Basement finish | Floor plan and permit-oriented drawing package | $800–$2,200 |
| ADU | Residential plan set with engineering as required | $1,800–$4,500 |
| Shop / detached garage | Architectural drafting plus structural engineering as required | $1,200–$3,500 |
| Floor-plan drafting only | Focused scaled floor-plan deliverable | $600–$1,800 |
| As-built measured drawings | Existing-condition measurement and documentation | $800–$3,000 |
Drafting + engineering
One Team Can Take the Plans Further.
A drafter creates the architectural drawings. A Professional Engineer handles the structural design when engineering is required. Those are different disciplines—but they must coordinate.
Ludlow Engineering can provide both services within the same firm, which is especially useful for custom homes, additions, unusual framing, engineered foundations and projects where the jurisdiction requires stamped structural documents.
Floor plans coordinate with structural wall and beam locations.
Foundation drawings coordinate with the proposed building footprint.
Roof and framing design can respond to the architectural layout.
Site information can be coordinated with surveying and civil engineering when needed.
06 · Don’t design the house in isolation
The Lot Can Change the Plan.
Setbacks, property boundaries, slope, drainage, access, utilities and existing improvements can affect where a home can sit and how the design should respond to the property.
Because Ludlow also provides surveying and civil engineering, projects that need additional site information can stay coordinated instead of moving between unrelated firms.
07 · Statewide hub, local expertise
House Plan Drafting Across Utah
Drafting work is largely completed in the office, which allows Ludlow Engineering to support homeowners and builders throughout Utah. Site visits and measured existing conditions are coordinated when the project requires them.
Northern Utah
Residential Drafting in Ogden
House plans, remodel drawings and residential drafting for Ogden, Weber County and surrounding northern Utah communities.
Explore Ogden drafting → Wasatch FrontHome Drafting in Salt Lake City
Residential plans for new homes, additions, remodels and existing conditions throughout the Salt Lake Valley.
Explore Salt Lake City drafting → Wasatch BackCustom Home Drafting in Park City
Custom residential drafting for mountain homes, complex layouts, remodels and projects requiring close structural coordination.
Explore Park City drafting →
08 · Built around the client
Who Uses Ludlow’s Drafting Services?
The same drawing process serves different clients differently. The scope should reflect who will use the plans and what decision comes next.
From Idea to Permit Drawings
Turn sketches, inspiration and room requirements into organized drawings that a builder and reviewing jurisdiction can work from.
Production & Custom Plans
Coordinate model plans, project-specific changes, structural engineering and permit-drawing requirements across Utah projects.
Drafting & Engineering Support
Support architects and designers who already have the concept but need drafting refinement, structural engineering or site coordination.
09 · Plan the schedule
How Long Does House Plan Drafting Take?
Project size, complexity, existing information, review cycles and engineering needs all affect the schedule.
| Project | Typical Published Timeline | What Can Affect It |
|---|---|---|
| Floor-plan-only drafting | 1–3 weeks | Existing information, size and revision rounds |
| Existing-plan modifications | 2–4 weeks | Extent of changes and engineering review |
| Full custom home plan | 6–10 weeks | Size, customization, revisions and structural complexity |
| Additions & remodels | Project specific | Existing-condition measurements and structural changes |
Your written proposal should identify the anticipated schedule for your specific project rather than relying only on a general planning range.
10 · House plan resource center
Related Drafting, Engineering & Site Services
Use this page for broad Utah house-plan drafting. The pages below go deeper into structural engineering, site planning, surveying and related project needs.
Parent hub
All Ludlow Services
Surveying, drafting, civil engineering, site planning and inspection services across Utah.
Structural engineeringEngineer-Stamped House Plans
PE-engineered foundations, framing, structural calculations and stamped construction documents.
EngineeringHouse Plan Engineering
Structural engineering support for house plans, foundations, framing and residential construction.
Building permitsUtah Site Plans
Civil site plans showing proposed improvements, grading, drainage, access and utilities where required.
Existing conditionsTopographic Surveys
Elevation and site-feature mapping for homes, additions, grading and design projects.
Land developmentCivil Engineering
Drainage, grading, utilities, infrastructure and development engineering for larger residential projects.
11 · Direct answers
House Plan Drafting FAQ
Common questions Utah homeowners and builders ask before starting a residential drafting project.
How much does house plan drafting cost in Utah?
Ludlow’s published pricing starts at $1,800 for many custom-home projects under 2,500 square feet. Larger custom homes, additions, ADUs and complex projects vary based on size, scope and engineering needs.
How long does it take to draft custom house plans?
A full custom house plan typically takes about six to ten weeks. Existing-plan modifications commonly take two to four weeks, while floor-plan-only drafting may take one to three weeks.
Do you provide engineer-stamped house plans?
Yes. Ludlow has Utah-licensed Professional Engineers who can provide structural engineering and stamped structural drawings when the project or reviewing jurisdiction requires them.
Can Ludlow draft plans for an addition or remodel?
Yes. Ludlow drafts room additions, second-story additions, basement finishes, garage conversions and major remodels. Existing-condition measurements may be required before proposed work can be drawn accurately.
Can I hire you just for floor-plan drafting?
Yes. Standalone floor-plan drafting is available when you need accurate scaled floor plans rather than a complete residential construction-document package.
Do house plans include structural engineering?
It depends on the scope. Architectural drafting and structural engineering are separate disciplines. Ludlow can provide both, and the proposal identifies which services and engineered sheets are included.
Do you draft ADUs and detached garages?
Yes. Ludlow drafts accessory dwelling units, detached garages, shops and other residential accessory structures, with engineering coordination when required.
Do you work with Utah homebuilders?
Yes. Ludlow works with builders on custom homes, production plans, plan variations and residential projects across Utah.
What software do you use?
Ludlow’s current drafting service information lists AutoCAD and Revit among the software used for residential drafting work, with digital plan deliverables available for project coordination.
Do you submit the building permit for me?
Ludlow provides the drawings and can respond to plan-check questions within the agreed scope. Permit submission itself is typically handled by the property owner or builder unless otherwise arranged.
Start your house plans
Bring Us the Idea. We’ll Help Turn It Into Drawings.
Send Ludlow Engineering your property address, rough sketch, existing plans if you have them, approximate square footage and a description of what you want to build. We can identify the drafting, surveying and engineering scope needed for the project.
Recommended Pages
House Plan Engineering Services in UtahEngineer-Stamped House Plans in UtahUtah · Engineered · Stamped Engineer-Stamped House Plans in Utah PE-engineered blueprints, foundation and framing calculations, and stamped…Residential House Plan EngineeringResidential House Plan Engineering Residential House Plan Engineering - Ludlow Engineering and Land Surveying engineers house plans for…American Land Title Association Surveys in Utah