Two site plans can look similar at first glance yet require very different drafting work. The most useful way to understand a quote is to compare the inputs available, site complexity, required drawings, and review risk—not just the footprint of the proposed structure.
1. The scope of the improvement
A fence placement plan may need segment lengths, heights, gates and known property-line distances. An accessory dwelling unit (ADU) may require utility context, access, parking information, lot coverage and a coordinated building drawing set. A larger scope means more drafting and checking.
For accessory dwelling unit projects, explore our ADU site plans to understand the site layout and permit drawing requirements.
2. Quality of the property information
A current survey, existing floor plan or trustworthy dimensional sketch can make a permit set easier to prepare. Parcel maps and online imagery help with orientation, but do not certify legal boundaries, grades or recorded easements. If a licensed survey is required, its cost is separate from drafting unless specifically contracted.
Learn when existing property records may be sufficient and when a licensed survey is necessary in our site plan without a property survey guide.
3. The number of existing and proposed structures
A detached shed on an otherwise uncomplicated lot may be straightforward. A parcel containing a home, garage, pool, paved parking, patio, septic area and multiple easements requires more careful coordination. Additional structures may affect setback notes, building or impervious coverage, utility clearances and plan legibility.
For home additions and other residential improvements, explore our residential site plans to understand the drawings needed for different property layouts.
4. Calculations and professional review
5. The reviewing jurisdiction
Some jurisdictions accept a straightforward drawing and source survey; others require distinct existing and proposed exhibits, multiple file uploads, zoning worksheets or professional certifications. The official checklist for the property and application category controls. More rigorous submissions can require additional sheets and quality checks.
6. Time and revision expectations
A standard site plan for an eligible straightforward scope commonly targets 24–48 hours after complete inputs and schedule confirmation. Rush options depend on capacity. Reviewer-requested drafting changes within the originally agreed scope differ from a new design, structural recalculation or added discipline.
How to compare two site-plan quotes
For current starting tiers, see the main 2026 site-plan pricing guide. For property-specific requirements, send your address and scope for a quote.
