See what your
property can
become.
Check ADU potential, conversions, additions, buildable area, zoning, setbacks, and site constraints using official county data.
Free preliminary analysis · No signup required
Sample property analysis
12419 Old Bridge Rd, Woodbridge VA
Lot
0.43 ac
Lot coverage
Assessed
RPA
No overlap
Development scenarios
Physical fit
Favorable
Legal
Verify
Site
Clear
Sample only · Run your address for live county results
One property. Five development paths.
Landability evaluates multiple ways a residential property may be used or expanded.
Interior ADU
Evaluate an accessory living space within the existing home.
Basement Conversion
Assess whether below-grade space may support an accessory unit.
Garage Conversion
Check if an attached or detached garage can be converted to living space.
Attached ADU
Evaluate a new living addition connected to the primary structure.
Detached ADU
Check whether the property shows physical potential for a separate accessory structure.
What Landability checks
Behind every report is a combination of official property records, zoning rules, parcel geometry, and mapped site data.
Zoning district
Live from county GIS
Parcel geometry
Lot size, shape, acreage
Setbacks
Front, rear, and side dimensional rules
Existing structures
Mapped building footprints
Road frontage
Access and orientation
RPA boundary
Resource Protection Area overlap
Easements
Recorded county easement layer
Septic signals
County septic parcel dataset
Association signals
HOA / POA from county records
Official county data · Verified rules where available · Uncertainty remains visible
Property research shouldn't take hours.
Prince William County's ADU rules are scattered across nine official data sources. Landability assembles them into one readable result.
Without Landability
- County GIS portal — multiple layers, no clear interpretation
- Zoning ordinance — 200+ pages, no lot-specific result
- Parcel records and assessment data in separate systems
- Multiple browser tabs, manual setback research
- Hard-to-interpret terminology with no context
- Still unsure what the property may actually support
With Landability
- Enter one address — property resolved automatically
- Five development scenarios evaluated instantly
- Major site signals surfaced from official county sources
- Physical and legal questions separated and explained
- Evidence clearly explained with source links
- Uncertainty shown openly — not hidden
How Landability works
From one address to a full property intelligence report — in seconds.
Enter your address
We match it to Prince William County's official address point layer and resolve the parcel. Outside coverage or ambiguous — we say so clearly.
Property data is checked
Nine official county sources are queried: parcel, zoning, RPA, easements, structures, septic, HOA, road orientation, and dimensional rules from the Zoning Ordinance.
Sources queried
See property potential
Five ADU scenarios are assessed for physical fit, legal permission, and site constraints. Every finding links to its county source and verification date.
See the answer before you hire anyone.
Landability turns property records and zoning data into a report you can actually understand.
Lot area
0.43 ac
Zoning
R-4
RPA
No overlap
Assessment overview
Physical
Favorable
Legal
Verify
Site
Clear
Development scenarios
Full report — dimensional detail
Full report unlocks dimensional detail
Sample only · Run your address for live county results
Run this analysis on your property
Analyze my propertyBuilt to show the evidence, not hide it.
Property intelligence is only useful if you can follow the reasoning.
Official property data
Landability uses public county parcel, zoning, GIS, and ordinance sources where available — not approximated or aggregated from third parties.
Traceable findings
Important rules and property findings remain connected to their source. Every conclusion shows where it came from.
Uncertainty stays visible
If Landability cannot verify something, the report says so instead of guessing. Confidence is reported separately from opportunity.
Start free. Go deeper when you need to.
The free analysis covers five scenario statuses for every address. Pay once for the full dimensional breakdown. No subscription. No account required.
Free Analysis
$0
No signup required
Preliminary scenario assessment for any Prince William County address.
- All 5 ADU scenario statuses
- Live zoning district from county GIS
- RPA, easement, and HOA signal
- Septic flag from county data
- Sources listed for every finding
Full Property Report
$49
One-time · per address
Complete dimensional detail, evidence log, and source provenance — unlocked.
- Everything in Free
- Exact setbacks from Ch. 32 Zoning Ordinance
- Buildable envelope from parcel geometry
- Physical / Legal / Site breakdown per scenario
- 12+ evidence items with source provenance
Professional
Coming soonFor builders, developers, agents, and property professionals. Bulk analysis, API access, and team tools.
Deep local coverage first.
We're starting with Prince William County so each property report can go deeper before Landability expands. Live county data — not national approximations.
Loudoun County
Virginia
In development
Fairfax County
Virginia
In development
Stafford County
Virginia
Planned expansion
Prince William
County, Virginia
9 sources · Live GIS queries
What could your property become?
Enter your address and see what the available property data suggests.
Prince William County · Free preliminary analysis · No signup required