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Before pursuing a residential subdivision, you need to know how many lots you can actually build. That answer depends on minimum lot sizes, which vary by municipality and zoning district. Ploti researches the relevant ordinances, applies the correct standards, and calculates lot yields for every qualifying parcel in your search area.
This example uses regional datasets (Orange County zoning) and researches municipal ordinances from Orange County, Winter Garden, Ocoee, Orlando, Windermere, and Apopka to determine minimum lot sizes. Learn more about regional data coverage.

The Opportunity

Subdivision feasibility analysis helps you:
  • Calculate potential lot counts based on actual zoning requirements
  • Compare development potential across dozens of parcels simultaneously
  • Identify the highest-yield opportunities in a market
  • Apply the correct municipal standards (not generic assumptions)

Walkthrough: Calculating Lot Yields Across 117 Parcels

Let’s find all vacant residential land over 10 acres and calculate how many lots each parcel could yield based on its specific zoning requirements.

Step 1: Select Your Search Area

First, select the boundary you want to search within.
Selecting a county as the search boundary

Step 2: Ask the Question

Asking Ploti to calculate lot yields for vacant residential parcels
We asked:
Find vacant parcels over 10 acres zoned for residential and calculate the potential lot count based on minimum lot size requirements
This isn’t just a filter query—it requires:
  • Finding qualifying parcels
  • Researching minimum lot sizes for each zoning district
  • Applying the correct municipal standards
  • Calculating gross and net lot yields

Step 3: Review the Research Plan

Ploti researches the relevant ordinances for each municipality in your boundary:
Ploti's research plan showing municipal ordinance research
The agent researched 6 jurisdictions and compiled minimum lot sizes:
ZoneOrange CountyWinter GardenOrlando
R-15,000 sq ft10,000 sq ft6,000 sq ft
R-1A7,500 sq ft-7,700 sq ft
R-1AA10,000 sq ft-10,000 sq ft
R-CE1 acre-1 acre
PUD~5,000 sq ft~5,000 sq ft~5,000 sq ft
A-121,780 sq ft21,780 sq ft-
Notice that “R-1” means different things in different cities—Winter Garden’s R-1 requires twice the lot size of Orange County’s R-1. Ploti applies the correct standard for each parcel.

Step 4: Review the Results

Map showing 117 vacant residential parcels with lot yield calculations
Ploti found 117 vacant parcels totaling 2,633 acres with a combined potential of 8,253 net lots.
MetricValue
Total Parcels117
Total Acreage2,633.7 acres
Gross Lot Yield12,785 lots
Net Lot Yield (65% efficiency)8,253 lots
The 35% gross-to-net deduction accounts for roads, drainage, utilities, and open space.

Step 5: Review the Feasibility Document

Ploti generates a detailed feasibility document with full analysis:
Feasibility document showing lot yield analysis by city and zoning
Results by City:
CityParcelsAcresNet Lots
Winter Garden611,336.24,641
Ocoee19333.41,303
Apopka6177.6826
Windermere15499.2583
Orlando11194.9515
Oakland472.4360
Top 5 Development Opportunities:
APNCityZoningAcresNet Lots
27-22-33-3604-00-003Winter GardenPUD80.9456
28-22-05-6432-00-003ApopkaPUD-LD82.3314
27-22-28-4025-12-000Winter GardenPUD51.8292
28-23-08-0000-00-001WindermereSFR197.4256
27-23-04-0000-00-001Winter GardenPUD30.3170

Step 6: View Cited Sources

The document includes citations to the specific ordinance sections used:
Cited sources showing Orange County, Winter Garden, and Orlando code sections
  • Orange County Code § 38-1501 - Basic Site and Principal Building Requirements
  • Winter Garden Code § 118-306 - R-1 Single-Family Minimum Lot Requirements
  • Orlando Code FG-1A.LDC - Table of Zoning District Regulations

Step 7: Refine Through Conversation

We asked a follow-up question:
Can you show me just the top 20 on the map?
Map showing top 20 parcels by lot yield potential
Ploti created a new checkpoint with the Top 20 Parcels by Lot Yield Potential:
  • 804 acres of land
  • 3,029 net lots (37% of total yield from just 17% of parcels)
  • Concentrated in Winter Garden (11), Apopka (3), Ocoee (3), Windermere (2), Oakland (1)

Important Caveats

This analysis provides estimates based on standard zoning requirements, but several factors affect accuracy: PUD (Planned Unit Development) Zones — PUD zoning doesn’t have fixed lot sizes. Each PUD has an approved site plan that defines the specific development standards. The estimates here (~5,000 sq ft) are conservative assumptions. For accurate analysis of PUD parcels, upload the approved PUD documents to the chat and ask Ploti to analyze them directly. Agricultural Zones (A-1, A-2) — Agricultural parcels are included assuming they could be subdivided at 0.5 acre lots per county code, but most would require rezoning to residential before subdivision. Treat these as “potential” rather than “ready-to-develop.” HOA/Common Area Parcels — Some results may include HOA common areas that appear as separate parcels but aren’t independently developable. Verify ownership and deed restrictions. Net Lot Deduction — The 35% deduction is an industry rule of thumb. Actual infrastructure requirements vary by jurisdiction, site topography, and stormwater needs. Some sites may lose 25%, others 45%. For the most accurate analysis on a specific parcel, provide Ploti with the approved PUD documents, site surveys, or preliminary engineering reports and ask for a refined calculation.

Why This Is Different

This analysis demonstrates capabilities that go beyond filtering:
Traditional GISPloti
Filter parcels by size and zoningSame filtering capability
Look up lot sizes manually for each zoneAutomatic ordinance research
Build spreadsheet with calculationsCalculations built into results
One parcel at a time117 parcels analyzed simultaneously
Generic assumptionsMunicipality-specific standards
The key differentiator: Ploti researches the actual ordinances and applies the correct minimum lot size for each parcel based on its city and zoning district.

The Time Savings

Without Ploti, this analysis would require:
  1. Identifying vacant residential parcels over 10 acres
  2. Determining which municipality each parcel is in
  3. Researching minimum lot sizes for each zoning district in each municipality
  4. Building a lookup table of zoning → lot size by city
  5. Calculating gross lot yield for each parcel
  6. Applying gross-to-net deductions
  7. Sorting and ranking by development potential
  8. Compiling into a usable report
That’s 2-3 days of analyst work for a single market. Ploti did it in 5 minutes—and produced a documented, citable analysis. For a land acquisition team evaluating multiple markets, this capability is transformative. What took weeks now takes hours.

Tips

  • For PUD parcels, download the approved PUD documents from the county and upload them to Ploti for precise lot size analysis
  • Net lot yields assume 35% deduction—ask Ploti to adjust if you know local requirements differ
  • Agricultural (A-1) parcels show potential but would need rezoning; factor in timeline and risk
  • Always verify calculations with the municipality before making offers
  • Check for wetlands, flood zones, and other constraints that reduce buildable area

Other Example Prompts

Specific Parcel Analysis

Calculate the lot yield for this 25-acre parcel based on its R-1A zoning
Analyze a specific property you’re considering.

Density Comparison

Compare the lot yield potential of R-1 vs R-2 zoning for parcels over 10 acres
Understand the impact of zoning on development potential.

Infrastructure-Ready Sites

Find vacant parcels over 10 acres with residential zoning that have water and sewer service and calculate lot yields
Add utility verification to the feasibility analysis.

High-Yield Opportunities

Find the 10 vacant residential parcels with the highest lot yield potential in this area
Jump straight to the best opportunities.