As-Built Drawings in Toronto and Across the GTA
Professional as-built drawings that capture the existing condition of your property — the essential starting point for renovations, additions, and permit legalization.
Before You Build Forward, Document What Is There
As-built drawings are a measured, scaled record of a building exactly as it exists today. Not as it was originally designed. Not as it appears on a decades-old set of plans filed with the city. As it actually stands right now — walls, windows, doors, stairs, ceiling heights, structural elements, plumbing, and mechanical systems documented on site and drawn to professional standards.
Every renovation, addition, and permit legalization in the GTA starts with the same question: what is already there? If the answer is a guess, a faded photocopy from 1987, or nothing at all, the project is starting on unstable ground. Inaccurate existing condition information leads to design errors, permit rejections, costly change orders on site, and months of avoidable delays.
At GTA Permits, we prepare as-built drawings for residential properties across 35+ GTA municipalities — from century homes in Toronto with zero records on file to 1990s subdivisions in Vaughan where the original drawings no longer reflect reality.
When Do You Need As-Built Drawings?
Planning a Renovation or Addition
Your architect, designer, or permit consultant needs an accurate floor plan before they can design the new work. Without as-built drawings, the proposed plans are based on assumptions — and assumptions become problems when the framing crew shows up.
Learn about our building permit drawings →Legalizing Unpermitted Work
A previous owner finished the basement or added a side entrance without obtaining a permit. The first step is documenting exactly what was built. Our as-built drawings capture the current condition so we can assess it against the Ontario Building Code.
Learn about residential building permits →Home Has No Drawings on File
Many older homes in the GTA predate modern permit record-keeping. The city has nothing on file, the previous owner left no documentation. We create the existing condition record from scratch so your project has a proper foundation.
Pre-Purchase Due Diligence
As-built drawings reveal discrepancies between what was sold and what actually exists — finished spaces never permitted, structures that encroach on setbacks, or layouts that do not match the listing drawings.
Learn about our consulting service →How Our As-Built Drawing Process Works
Scope Call
You tell us about the property and the project. We confirm what needs to be documented and provide a quote. Five minutes, no charge.
Site Visit
We schedule a site measurement appointment. Our team measures the property, photographs existing conditions, and gathers all dimensional and structural information needed to produce accurate drawings.
Drawing Production
We produce scaled as-built floor plans, elevations, and structural notes from the field data. Turnaround is typically 1 to 2 weeks depending on size and complexity.
Review and Handoff
You receive the completed as-built set for review. Final drawings are delivered in PDF and CAD formats.
Seamless Transition to Permit Drawings
If your project moves forward, the as-built drawings become the base layer for your permit drawing set. No re-measurement. No re-drawing the existing conditions from scratch.
Related Services
Frequently Asked Questions — As-Built Drawings
Get Your Property Documented Right
Every good renovation starts with knowing exactly what you are working with. GTA Permits delivers accurate, professional documentation that your entire team can rely on.