Home addition permit plans, tied into the existing house.
We prepare permit drawings for home additions that show the existing house, proposed footprint, architectural tie-in and the structural or MEP changes included in the project scope.
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What the reviewer needs to understand quickly
A strong permit set makes the project scope obvious before the reviewer starts checking individual dimensions and details. For this project type, the drawing package commonly needs to communicate:
- Addition footprint and setback compliance
- Existing-to-new floor-plan coordination
- Roof and exterior tie-in
- Foundation and framing load path
- Electrical, plumbing and HVAC impacts
Project image is an illustrative planning visual. Permit drawings are prepared from your actual property and project information.
Home addition drawings may include
Every plan is drawn for your actual lot from your survey or plat, with the details your reviewer checks first.
- Existing and proposed site plan
- Existing and proposed floor plans
- Addition dimensions
- Exterior elevations
- Roof tie-in
- Building sections
- Foundation plan
- Framing plans
- Electrical changes
- Plumbing and HVAC changes when applicable
Example texas home addition permit plans
This is the kind of drawing your permit office reviews. Each numbered item is something we show on your plan.
- 1Existing and proposed site plan
- 2Existing and proposed floor plans
- 3Addition dimensions
- 4Exterior elevations
- 5Roof tie-in
- 6Building sections
- 7Foundation plan
Addition projects we draw
Tell us what you are building and we draw the plan your city expects for that project.
Bedroom additions
Expanded sleeping and living space.
Primary-suite additions
Bedroom, bath and closet expansions.
Kitchen additions
Expanded kitchens and dining areas.
Family rooms
Rear or side living-space additions.
Sunrooms and enclosed porches
Converted or newly enclosed conditioned spaces.
Second-story additions
Expanded floor area with structural coordination.
Plans and projects like yours
A look at the drawings and project types this service covers in Texas.
How the permit set fits together
Not every project needs every discipline. We confirm the required scope first, then coordinate the sheets that apply.
Existing conditions
Base drawings of the house and affected area.
Proposed architecture
New room layout, elevations, roof and sections.
Structural
Footings, framing, beams and tie-in details.
MEP
Trade changes serving the added space.
What can change the permit scope
Two projects with the same name can require very different drawings. These are the conditions that most often change the amount of architectural, structural, MEP or site work involved.
Existing structure
The way the addition ties into the existing foundation, walls and roof can significantly change structural scope.
Added plumbing
Bedrooms or living rooms are usually simpler than additions with bathrooms, kitchens or laundry because wet areas add trade coordination.
Roof tie-in
Gable, hip, shed and intersecting roofs need different elevation, framing and flashing details.
Site limits
Setbacks, lot coverage, easements, drainage and utility locations can control where the addition can go.
Permit drawing examples and deliverables
These reference images show the kinds of sheets and drawing information commonly used in permit packages. Your actual set is prepared from your property, project and agreed scope.
Typical deliverables may include
The final list depends on the jurisdiction and the scope confirmed before drafting.
- Permit-ready PDF drawing set for the agreed scope
- Scaled plans with project dimensions and notes
- Coordinated sheets where multiple disciplines are included
- Revision support for covered drafting comments
- DWG source files when included in the quoted scope
Texas review factors that can change the scope
Rules change from city to city. These are examples from official city permit pages, and we check the rules for your address before drawing.
Requirements change. Always confirm current rules with your permit office before you build.
Common reasons reviewers ask for corrections
These are recurring review issues we account for when preparing the agreed drawing scope.
- Existing and proposed conditions are not clearly distinguished
- Dimensions, notes or project scope are incomplete
- Required site, architectural, structural or trade information is missing
- Drawing sheets do not coordinate with one another
- Local review comments are not addressed in the resubmittal
What we need from you
Start with the information you already have. We identify any missing measurements, records or design inputs before drafting proceeds.
- Property addressSo we can confirm the city, county or ETJ rules.
- Survey or recorded plat when availableA PDF or clear image is fine. If it is unavailable, we confirm what source information is needed before drafting.
- Project detailsWhat you are building, its size and where it goes on the lot.
- Photos or a sketchOptional, but they help us place the work accurately.
Who we draw these plans for
Homeowners ordering one plan and contractors ordering every week get the same review and turnaround.
From property information to a coordinated permit set
We confirm the project inputs first, then draft and coordinate only the sheets included in the agreed scope.
Send your address
Share the property address, project details and any survey or plat you have.
Get scope and price
We confirm what your city or county requires and send a clear quote.
We draft the plan
Your plan is drawn to scale with every dimension the reviewer checks.
Submit with confidence
You get a permit-ready PDF, and we fix covered review comments for free.
Permit-review support after delivery.
Covered drafting comments within the agreed scope can be revised as part of the correction workflow. Added design, engineering or jurisdictional scope is quoted separately when required.
Related project and drawing services
These are the services most often combined with this project type. Use them to understand what may be added when the permit scope expands.
Questions about Texas home addition permit plans
Straight answers to what Texas owners and contractors ask us most.
Do home additions need a site plan?
Often yes, because the reviewing authority needs to verify setbacks, lot coverage and placement.
What existing information do you need?
A survey or plat, existing dimensions, photos and any available original drawings are helpful.
Do you show the roof tie-in?
Yes, roof plan and elevation/section information can be included.
Can structural drawings be included?
Yes, foundation and framing scope can be coordinated.
Can MEP changes be included?
Yes, electrical, plumbing and HVAC changes can be added when part of the permit scope.
Can you show the existing house and the addition in one set?
Yes. Existing and proposed drawings are commonly coordinated so the reviewer can see exactly what changes.
Do additions always need structural calculations?
No. Structural calculations depend on the framing changes, spans, loads and local review requirements.
Can you include a new bathroom or kitchen in the addition?
Yes. Plumbing, electrical and HVAC changes can be added when they are part of the permit scope.
What information do you need about the existing house?
Existing dimensions, photos, roof information and any available original drawings help us document the tie-in accurately.
More Texas permit drawing services
Other plans we draw for Texas permits.
Related permit guides
Guides for Texas property owners and builders.
Serving every Texas city and county
Local permit guides for our most-requested cities. We draw for all 254 Texas counties.
Get the right drawing scope before drafting starts.
Send the property address, project type and any survey, sketch or permit comments you already have. We review the likely drawing scope and reply with the next step.
Get a free quote
Send the address and project. We reply with what your city needs and a price.
Free quote. No obligation. We reply in business hours.
Request received
We are checking your address now and will reply with what your city needs and a price. A confirmation email is on its way.
WhatsApp us