What Information Do You Need to Provide for As-Builts?

If you are ordering measured drawings for a house, condo, ADU, or commercial space, the fastest way to keep the job moving is to know the info needed for as-built drawings before you book. Good as-builts start with accurate field measurements, but they also depend on clear project information from the property owner, architect, designer, contractor, or real estate professional requesting the plans.

In California, the details you provide upfront can affect scheduling, site access, drawing scope, and how useful the final CAD files will be for design or permit work. FastAsBuilt uses on-site laser measurement and senior drafters to create permit-ready CAD files in PDF and DWG format, so a little preparation on your side helps us deliver cleaner plans with fewer back-and-forth questions.

Start with the basic property details

The first thing we need is simple: the exact property information. This is the foundation for scheduling the field visit and confirming what type of building we are measuring. If the address is incomplete or the unit number is missing, it can delay the site visit or create confusion about what needs to be documented.

When you request a quote or place an order, gather these basics first:

• Full property address
• City and ZIP code
• Property type, such as single-family home, condo, apartment unit, ADU, retail suite, office, or mixed-use space
• Approximate square footage, if known
• Your role in the project — owner, architect, designer, contractor, broker, or property manager

If you are not sure about the size, that is usually fine. An estimate helps us understand scope, and we can confirm details during the measurement process. If you are new to the topic, this overview of what as-built drawings are is a helpful starting point.

Be clear about what you need the drawings for

One of the most important pieces of project info is the intended use of the drawings. The same building can be measured for different goals, and those goals shape the final deliverables. If you only need a measured floor plan for planning furniture or marketing a property, the scope may be different from a permit submittal for a remodel, ADU, or tenant improvement.

Tell us what you are trying to do with the plans. Common use cases include:

• Planning a renovation or addition
• Preparing a building permit package
• Documenting an existing house before design begins
• Creating as-built plans for an ADU or SB9 project
• Leasing, property management, or real estate marketing
• Tenant improvements in a commercial space

This is where many clients save time. If we know the drawings are headed toward permit review, we can better match the drafting scope to your needs. For more on permit use, see as-built drawings for building permit.

You should also mention whether you need 2D or 3D deliverables. FastAsBuilt offers 2D As-Built Plans starting at $900 for up to 1,500 square feet, then $0.50 per square foot, with one revision and typical 48–72 hour delivery. 3D As-Built Plans start at $1,500, then $1.00 per square foot, and include a 3D model plus 2D floor plans, elevations, and sections, with two revisions and typical 3–5 business day delivery.

Turnaround times are estimates and may vary based on project complexity and scheduling.

Define the exact scope of measurement

When people ask what to provide for measured drawings, the answer is often scope, scope, scope. You do not need technical drafting language, but you do need to explain exactly what areas should be measured. If part of the property is excluded, say so clearly. If detached structures matter, mention them before the site visit.

Useful scope details include:

• Main house only, or main house plus garage, basement, attic, or covered patio
• Detached structures such as an ADU, shed, workshop, or pool house
• Interior only, exterior only, or both
• Common areas, corridors, lobbies, stairways, or service spaces for multi-unit or commercial properties
• Any areas that are locked, occupied, under construction, or difficult to access

If there are spaces that do not need to be included, that matters too. A clear scope prevents assumptions, keeps the quote aligned with the work, and reduces revision requests later. If you want to understand how the fieldwork translates into CAD, this guide on how as-built drawings are made explains the process.

Share any existing plans, sketches, or records you already have

You do not need old drawings for FastAsBuilt to measure a property. We can start from field measurement. Still, any documents you already have can be useful reference material. They help us understand the building layout, identify likely additions or changes, and spot areas that may need extra attention on site.

Helpful reference files may include:

• Original plans or older blueprints
• Previous permit drawings
• Real estate floor plans
• Hand sketches with notes
• Site plans, plot plans, or assessor records
• Photos showing key rooms, exteriors, or unusual conditions

These documents are not treated as a replacement for measurement. Existing records are often outdated, incomplete, or inconsistent with what is actually built. That is why field verification matters. But sending reference files before the visit helps us prepare and may reduce clarification questions during drafting.

If you have no plans at all, that is common. Many California homeowners come to us after buying a property with little documentation, especially older homes or remodeled houses. In those cases, a measured as-built is often the cleanest place to start.

Provide access and occupancy information before the site visit

Access details are one of the most overlooked as-built requirements. The measurement team needs to know how to enter the property, who will be there, and whether any parts of the building require special coordination. In occupied homes, condos, and tenant spaces, these details can make the difference between a smooth visit and a delayed one.

Before the appointment, provide:

• Primary contact name and phone number
• On-site contact, if different from the person ordering
• Gate codes, lockbox instructions, parking notes, or entry procedures
• Whether pets, alarms, or security systems need to be managed
• Whether tenants, residents, or staff will be present
• Any time restrictions from an HOA, building management, or business operations

If the property is a condo or commercial suite, tell us whether common areas, rooftops, electrical rooms, or exterior elevations require separate approval. If an area cannot be accessed on the visit day, it may affect the completeness of the drawings. For practical prep tips, see how to prepare for your as-built site visit.

Flag special conditions that affect measurement or drafting

Not every building is straightforward. Older California homes, hillside properties, multi-level remodels, and commercial spaces with phased construction can all have quirks that matter. The more you tell us in advance, the better we can plan the visit and set expectations for deliverables.

Let us know if any of these apply:

• Recent additions or partial demolitions
• Sloped ceilings, split levels, or unusual rooflines
• Enclosed patios, converted garages, or non-original rooms
• Tight crawlspaces, limited attic access, or restricted utility areas
• Occupied tenant spaces with privacy or scheduling constraints
• Active job sites with debris, missing finishes, or safety limitations

You do not need to diagnose every condition perfectly. Even a quick note like “garage was converted years ago” or “back unit added after the original house” is useful context. These details help us understand where dimensions, openings, wall thicknesses, and elevation relationships may need closer attention.

For custom commercial jobs, ADUs, SB9 projects, and tenant improvements, FastAsBuilt quotes scope individually. That is especially helpful when the work goes beyond a standard home floor plan and needs more project-specific coordination.

Specify your deliverables, file needs, and timeline

Another key part of the info needed for as-built drawings is what you expect to receive at the end. Some clients only need a PDF floor plan. Others need DWG files for their architect, or they need sections and elevations because design work is already underway. If you do not say this early, the team may need to pause and confirm scope later.

Share any preferences for:

• 2D floor plans only
• 3D model plus 2D floor plans, elevations, and sections
• PDF files, DWG files, or both
• Urgent scheduling needs tied to design deadlines or permit milestones
• Who should receive the final files — owner, architect, contractor, or multiple parties

FastAsBuilt’s standard 2D and 3D packages already include permit-ready CAD output in PDF and DWG. If you are comparing options, you can review as-built drawing costs in California for a clearer picture of standard pricing and when custom quoting may apply.

If you are ready to move forward, you can place your request through the order page. Clear file and timeline expectations at the start usually lead to faster delivery and fewer revisions.

Know what not to worry about

Many clients delay ordering because they think they need to assemble a perfect package of records first. In most cases, you do not. You do not need to provide old blueprints, formal architectural terminology, or a complete permit history just to get started. The essential requirement is enough project info for us to schedule the visit, understand scope, and confirm deliverables.

It helps to separate “required” from “nice to have.” Usually, the must-have items are:

• Accurate property address
• Approximate building type and size
• Clear measurement scope
• Access instructions and contact information
• Intended use of the drawings

Nice-to-have items include old plans, photos, permit records, and design notes. Those references can help, but they are not mandatory. If you are unsure whether your notes are relevant, send them anyway. It is better for us to review extra context than to discover an important detail after the site visit is complete.

Frequently asked questions

Do you need existing blueprints to create as-builts?

No. FastAsBuilt can create measured as-built drawings from on-site laser measurement even if you have no prior plans. Existing blueprints, sketches, or permit sets can be helpful reference material, but they are not required to begin.

What if I do not know the exact square footage?

That is usually not a problem. An approximate size is enough to start the quote and scheduling conversation. We can verify the measured building area through the site visit and drafting process. If your project includes multiple structures, list each one as clearly as you can.

Should I mention that I need the drawings for a permit?

Yes. This is one of the most important things to say upfront. If the plans are intended to support a permit package, design team coordination, an ADU, or tenant improvements, that affects scope and deliverables. Permit-related use should be identified early so the drawings match your next step.

What happens if part of the property is inaccessible on measurement day?

If a room, exterior area, or detached structure cannot be accessed, the drawings may be incomplete for that portion unless a return visit is arranged. That is why access instructions, occupancy coordination, and notes about locked or restricted areas are so important before the appointment.

Bottom line

The best way to prepare for measured drawings is to provide the right project info early: property address, building type, approximate size, scope of measurement, intended use, access details, and any helpful reference files. You do not need to overcomplicate it. When FastAsBuilt has a clear picture of what you need and how the property can be accessed, the site visit goes smoother, drafting moves faster, and you get more useful as-builts for your California project.