A larger lot can be an important feature when buying a home in McLean, Virginia, but the acreage shown in a listing does not tell you everything you may need to know about how the property can be used.
Fairfax County maintains property mapping with layers that include zoning districts, FEMA flood hazard areas, floodplains, Resource Protection Areas, easements, stormwater easements, historic overlays, and other land-related information.
Virginia law also places significant responsibility on buyers to conduct property-specific due diligence. The state’s residential property disclosure statement advises that sellers make no representation regarding current lot lines or a buyer’s ability to expand, improve, or add structures.
For McLean buyers, that means a large lot should be evaluated based on more than its square footage.
Why Doesn’t Lot Size Tell the Whole Story?
Imagine comparing two McLean homes that each sit on similarly sized parcels.
One might offer relatively straightforward options for future improvements.
Another could have:
- Easements
- Floodplain considerations
- Resource Protection Areas
- Different zoning conditions
- Private covenants
- Setback limitations
- Existing structures affecting lot coverage
The total acreage can therefore be identical while the practical considerations are very different.
This is why Jeremy Rosenthal encourages buyers to evaluate the individual parcel rather than making assumptions from lot size alone.
Why Should Buyers Check the Property Lines?
Virginia’s residential property disclosure statute specifically tells buyers that an owner makes no representation regarding current lot lines.
The statute advises purchasers to perform whatever due diligence they consider necessary, including obtaining a property survey.
A survey can become particularly relevant when your purchase decision depends on questions involving:
- Fences
- Additions
- Driveways
- Access
- Existing improvements
- Neighboring improvements
- Other boundary-related considerations
A listing photograph or online map should not automatically be treated as a professional determination of the legal boundary.
What Does Zoning Tell a McLean Buyer?
Zoning helps establish how land may be used and developed.
Fairfax County’s mapping system includes zoning-district information as one of its property layers.
For buyers considering future improvements, zoning questions can include:
- What is the property’s zoning district?
- What setbacks apply?
- Are there lot-coverage restrictions?
- Are there height restrictions?
- What rules apply to the improvement being considered?
Virginia’s disclosure statute specifically advises purchasers to contact the locality to investigate zoning ordinances and requirements involving lot coverage, height, and setbacks when appropriate.
What Is a Resource Protection Area?
Fairfax County identifies Resource Protection Areas, or RPAs, as part of its Chesapeake Bay Preservation Area framework.
County mapping describes these areas as including environmentally sensitive lands associated with features such as perennial streams and wetlands.
Fairfax County’s property mapping includes an RPA layer that buyers can use as an initial research tool.
If a parcel includes or is near an RPA, buyers planning significant land disturbance, construction, or other improvements should investigate the applicable County requirements.
Why Can Floodplain Information Matter?
Fairfax County also maps FEMA Special Flood Hazard Areas and other floodplain information.
The County notes that its floodplain regulations are more stringent than the federal minimum requirements of the National Flood Insurance Program. Certain uses within regulated floodplains can require additional County review.
This is another reason buyers should investigate the individual parcel rather than assuming that a large lot is completely unrestricted.
What Are Easements?
An easement generally gives another party certain rights involving part of a property.
The exact meaning and effect depend on the specific easement.
Fairfax County’s property mapping includes both easement and stormwater-easement layers among its available property information.
However, an online map should not replace review of the actual recorded documents when an easement could affect your plans.
If an easement appears relevant, buyers may want to obtain the applicable documentation and consult an appropriate professional for interpretation.
What If You Want to Add Onto the House?
If an addition is part of your plan, investigate feasibility before treating it as guaranteed.
Questions could include:
Setbacks
How far must a structure remain from applicable property lines?
Lot Coverage
How much of the parcel can be occupied by applicable improvements?
Existing Structures
How does the current house already use the available building area?
Environmental Features
Are floodplain or RPA considerations present?
Easements
Would a proposed addition conflict with an easement?
Private Restrictions
Does an HOA or recorded covenant impose another layer of requirements?
The answers are property-specific.
What About Adjacent Properties?
Virginia’s disclosure statute also tells buyers that sellers make no representation regarding matters affecting adjacent parcels, including their zoning classification or permitted uses. Buyers are advised to conduct their own due diligence regarding neighboring parcels.
This can matter when the surrounding land is an important part of your purchase decision.
Do not assume that a neighboring parcel will always remain exactly as it appears today.
Research its current status through appropriate local resources.
Does Fairfax County’s Online Map Replace Professional Due Diligence?
No.
Online mapping is useful for identifying questions.
It should not automatically be treated as a survey, legal interpretation, engineering analysis, or guarantee that a proposed improvement will be approved.
Depending on the issue, buyers may need assistance from:
- A surveyor
- Engineer
- Attorney
- Home inspector
- Contractor
- County staff
- Other qualified professionals
The appropriate professional depends on the question.
A Practical McLean Lot Due-Diligence Checklist
Before purchasing a home where the lot is an important part of your decision, consider:
Verify the Parcel
Review available Fairfax County property information.
Consider a Survey
Particularly when boundaries or future improvements matter.
Check Zoning
Identify the zoning district and applicable development rules.
Review Environmental Layers
Look for floodplain and RPA information.
Investigate Easements
Identify potentially relevant recorded rights.
Review Private Restrictions
Check applicable HOA or covenant information.
Define Your Future Plans
Be specific about what you hope to build or change.
Verify Feasibility
Consult the appropriate authorities and professionals before assuming the project can proceed.
Frequently Asked Questions About Buying Larger Lots in McLean
Does a larger lot automatically mean I can build an addition?
No. Zoning, setbacks, lot coverage, easements, environmental restrictions, and private covenants can affect what may be possible.
Does the seller guarantee the property lines in Virginia?
Virginia’s residential disclosure statute states that the owner makes no representation regarding current lot lines and advises purchasers to perform their own due diligence, including obtaining a survey when appropriate.
Can I check Fairfax County floodplain information online?
Yes. Fairfax County maintains mapping containing FEMA Special Flood Hazard Areas and other floodplain information.
What is an RPA?
A Resource Protection Area is part of Fairfax County’s Chesapeake Bay Preservation framework and can involve environmentally sensitive areas associated with streams, wetlands, and related features.
Should I research the neighboring parcel too?
If its current or future use matters to your purchase decision, yes. Virginia’s residential disclosure statute specifically advises buyers to conduct due diligence regarding adjacent parcels.
Work With Jeremy Rosenthal
Buying a home with a larger lot in McLean involves evaluating more than the number of acres shown in the listing. Jeremy Rosenthal helps Northern Virginia buyers identify property-specific questions involving the home, land, transaction, and future plans so they can conduct appropriate due diligence before purchasing. Contact Jeremy if you are considering a home in McLean, Fairfax County, or elsewhere in Northern Virginia.
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