Infill Lot Search

Infill development—building on vacant lots within existing neighborhoods—offers lower infrastructure costs and built-in demand. But finding truly buildable lots means verifying utilities, not just vacancy. Ploti cross-references utility service areas to find lots that are actually ready to build.

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The Opportunity

Infill lots with verified utilities are valuable because:

• Water and sewer connections already exist—no extension costs
• Established neighborhoods with known comparable values
• Shorter entitlement timelines than greenfield development
• Strong buyer demand for new construction in desirable areas

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Walkthrough: Finding Buildable Residential Lots

Let’s find vacant residential lots that are truly development-ready—inside the urban service area with both water and wastewater service confirmed.

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Step 1: Write the Research Request

Begin the request by naming the geography you want to search.

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Step 2: Add the Criteria

We asked:

Find vacant residential lots between 0.25 and 1 acre inside the urban service area with water and wastewater service available

This query combines four layers in one request:

• Vacant residential (land use codes 460, 465)
• 0.25 to 1 acre (single-family buildable size)
• Inside urban service area (infrastructure zone)
• Water + wastewater service (utility verification)

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Step 3: Review the Research Approach

The research run used this multi-layer approach: Ploti identified:

• 4,043 vacant residential lots in the study area
• 963 lots in the target size range (0.25-1 acre)
• 12 water service territories to check against
• 5 wastewater service territories to verify

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Step 4: Review Final Results

Ploti found 337 vacant residential lots with verified utility access. 65% of size-appropriate vacant lots lack full utility service. Without utility verification, you’d waste time on lots that require expensive infrastructure extensions.

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Step 5: Analyze Distribution

Ploti breaks down results by location and characteristics: Size distribution:

• 0.25-0.50 acres: 202 parcels (60%)
• 0.50-0.75 acres: 84 parcels (25%)
• 0.75-1.00 acres: 51 parcels (15%)

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Step 6: Explore Utility Service Layers

Toggle on the supporting layers to visualize the utility infrastructure: Urban Service Area — The boundary where urban-level utilities are provided: Water Service Providers — 12 different water utility territories: Wastewater Service Providers — 5 sewer utility territories: These overlays help you understand which utility provider serves each lot—useful information when planning connections.

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Why Utility Verification Matters

Finding a “vacant lot” is easy. Finding a buildable lot is harder. The difference: Ploti’s cross-layer analysis eliminates lots that look good on paper but have hidden infrastructure costs.

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The Manual Workflow This Replaces

Without Ploti, verifying utility availability would require:

1. Identifying vacant residential lots from county records
2. Filtering for appropriate lot sizes
3. Calling the county to determine urban service area boundaries
4. Calling the water utility to verify service availability
5. Calling the wastewater utility to verify sewer service
6. Repeating steps 3-5 for each lot of interest
7. Maintaining a spreadsheet to track which lots passed all checks

At portfolio scale, repeating those checks property by property is difficult to audit. Ploti keeps the screening criteria, provider layers, and resulting candidates together for review.

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Tips

• Lots inside the urban service area typically have utility access, but verify tap fee costs with providers
• Water and wastewater service areas don’t always overlap—both are required for residential development
• Check why attractive lots are still vacant—there may be easements, access issues, or wetlands
• Compare assessed values to recent lot sales in the same subdivision
• Consider lots that have been vacant longest—owners may be more motivated to sell

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Other Example Prompts

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Basic Vacant Lot Search

Show me vacant residential lots under 1 acre in Winter Park

Simple search when you just need to find vacant lots in a specific area.

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Value-Based Infill Search

Find vacant residential lots under 0.5 acres inside the urban service area with market values under $75,000

Adds a price ceiling for budget-conscious builders.

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Subdivision Infill

Find vacant lots under 1 acre within platted subdivisions that are zoned R-1

Targets lots in existing neighborhoods with single-family zoning.

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Infill Without Flood Risk

Find vacant residential lots between 0.25 and 1 acre with water service that are not in a FEMA flood zone

Combines utility verification with environmental screening.