What is proved
The final R3 architectural set labels the subject finished floor 133.5 feet. The map also uses official parcel polygons and official FEMA hazard-zone geometry.
Parcel lines: MCAD display geometry. Flood polygons: FEMA NFHL layer 28, clipped to this frame. They are not field-located boundaries.
Subject / plan FFE knownLot 4 · 133.5′, datum unresolved
FFE not foundNo defensible numeric floor located
Immediate comparisonAdjacent or directly across street
FEMA shaded X0.2% annual-chance flood hazard
FEMA Zone AEStatic BFE 128′ NAVD88 in queried features
Read this first
The map is an evidence ledger—not an elevation certificate.
What remains unproved
No reviewed public record supplies a defensible numeric FFE for a neighboring home. The subject plan does not name its vertical datum, so its 133.5-foot value cannot yet be compared directly with FEMA's NAVD88 value.
The next decisive document
Obtain an RPLS-signed vertical datum reconciliation tying the plan's 130.95 brass-disk benchmark and proposed FFE to NAVD88, with stated geoid/model, conversion, uncertainty, and current field verification.
Immediate-neighbor ledger
Numbers are shown only where a record supports them.
“FFE not found” means no defensible floor elevation was located in the records reviewed for this exhibit as of July 31, 2026. It does not mean the property lacks a certified elevation certificate elsewhere.
| Lot / address | Mapped FFE | Datum | Best located evidence | Confidence |
|---|---|---|---|---|
| L4 · 25 Aria Isle | 133.5′ · plan | Not stated | Final R3 architectural sheet A1.1; benchmark note 130.95 | High that plan states value; low comparability |
| L3 · 109 Wind Whistle | FFE not found | — | MCAD parcel geometry / situs only | No numeric floor evidence |
| L5 · 29 Aria Isle | FFE not found | NGVD29 benchmark appears on survey | 2022 Quiddity survey gives existing grades, not a floor elevation | High that FFE is absent from located survey |
| L24 · 30 Aria Isle | FFE not found | — | MCAD reports a 2025 improvement; no numeric floor record located | No numeric floor evidence |
| L23 · 34 Aria Isle | FFE not found | — | MCAD reports a 2023 improvement; no numeric floor record located | No numeric floor evidence |
| L22 · 38 Aria Isle | FFE not found | — | MCAD reports a 2023 improvement; no numeric floor record located | No numeric floor evidence |
Open the complete 25-lot status list
Primary geometry sources
- Montgomery Central Appraisal District · exact subdivision query
- FEMA National Flood Hazard Layer · exact map-envelope query
- FEMA service layer: S_FLD_HAZ_AR / layer 28. Display geometry was clipped—not redrawn—to the exhibit frame.
Elevation documents reviewed
Current_Drawings/25 Aria Isle - FOR PERMIT R3 - FINAL SET 2026-01-23 - FULL 32pp.pdf, sheet A1.1.- Quiddity Lot 5 survey (Dec. 16, 2022): existing grades and Woodlands monument TC-38, elevation 143.88, NGVD29 / 1964 adjustment; no FFE.
Current_Drawings/19661_survey_r1.pdffor Lot 11: existing grades and brass-disk TBM 130.95; no stated vertical datum and no FFE.- Recorded subdivision plat and Lot 14 survey were reviewed for benchmark context; neither supplies a neighboring home FFE.