Record existing conditions
Name the rooms, exterior walls, openings, and approximate dimensions that must remain.
Free AI floor plan creator for home changes
Describe the as-built rooms and the addition, conversion, or new storey you are considering. FloorPlanCreator.org lays out a clear planning drawing — free, no signup, no watermark.
- Cost
- Free
- Account
- No signup
- Engine
- AI
- Export
- SVG · PNG
Scenario and reference pages
Plans for changing a house that already exists
This site focuses on additions and conversions—not the stores, classrooms, events, and generic room layouts covered by FloorPlanMaker.app.
Floor plan
home addition plans
Explore how new rooms can connect to an existing house while keeping circulation and approximate dimensions visible.
Floor plansecond story addition plans
Lay out bedrooms, bathrooms, stairs, and grouped plumbing for a proposed new level above an existing house.
Floor plangarage conversion plans
Test how an existing garage footprint can become living space with light, egress, storage, plumbing, and a connection to the house.
Floor planmaster suite addition plans
Arrange a primary bedroom, en-suite, walk-in closet, windows, and a short connection to the existing home.
Floor planranch house addition ideas
Explore side, rear, or courtyard additions that work with a single-storey ranch footprint.
Floor plansplit level addition ideas
Plan an addition around half-level stairs, existing entries, and the circulation constraints of a split-level home.
Floor planbasement layout planner
Lay out finished rooms while preserving stairs, mechanical space, storage, egress, and plumbing relationships.
Floor planattic conversion plans
Test an attic layout with stairs, head-height zones, dormers, storage, a bedroom, and a compact bathroom.
Floor plansunroom addition plans
Plan a glazed addition with doors, window walls, furniture, and a clear connection to the existing living space.
Floor planas-built floor plan
Record the rooms, openings, fixtures, stairs, and dimensions that exist before proposed work begins.
Floor planhouse blueprint maker
Create a clear house planning layout from rooms, dimensions, openings, fixtures, and circulation described in one brief.
Process
Trace the existing house, then describe the change
Describe new work
Add the rooms, connections, stairs, windows, fixtures, and circulation you want to explore.
Generate a planning layout
The floor-plan engine arranges both parts into a to-scale concept with architectural symbols.
Review with a professional
Export the concept for discussion; a licensed professional must verify structure, code, permits, and construction details.
Details
Questions, answered plainly
Is this the same product as FloorPlanMaker.app?
No. FloorPlanCreator.org is specifically for modifying existing homes—additions, second storeys, garage conversions, basements, attics, and as-built plans.
Are these construction-ready blueprints?
No. They are planning concepts. Have a licensed architect, designer, engineer, or contractor verify measurements, structure, code, and permit requirements.
Can I show existing and proposed work?
Yes. Describe which spaces already exist and which rooms or openings are new. The site’s tracing-paper visual language keeps that renovation context clear.
Are downloads free?
Yes. SVG and PNG export require no signup, payment, or watermark. Hourly fair-use limits apply.