106 E 18th Street, Sea Island, GA 31561
Sources: ScoutMLS® (listings + 12-mo closed sales), FEMA, modeled insurance. Interpretation: Momentum Research. Data notes
- No CDD assessment on record
- Built 2021 · 5 yrs
- 11,723 sq ft of living area
- 4-car garage
- 139 days on market
- HOA ~$50/mo (estimate; confirm)
Pricing & the Sea Island Cottages market
How this home is priced against recent nearby sales, and where Sea Island Cottages has been over 25 years. Momentum Research analysis of scout records; closed sales, deemed reliable but not guaranteed. Estimates only; see data notes.
Price vs. size in Sea Island Cottages
Each dot is a closed sale since 2021 (41 total). This home is the gold marker.
Sale price (y) by living area in sq ft (x). ScoutMLS® closed sales.
Median $/sq ft by year
Community sold $/sq ft, 2021–2026. This home lists at $3583/sq ft.
Median sale price by year
12-month median closed price, 2021–2026.
This home’s history
- 2021BuiltPer public record
- Aug 31, 2026First trackedObserved at $42,000,000
- NowActiveCurrently for sale
Build year is from public record. Listing milestones reflect movewithmomentum.com’s own observations since we began tracking this listing and are not the MLS listing history; dates and prices are deemed reliable but not guaranteed.
Estimated monthly payment
- Principal & interest $215,923/mo 81%
- Taxes $36,750/mo 14%
- Insurance $12,495/mo 5%
- HOA $50/mo 0%
$265,218/mo at 20% down, 30-yr @ 6.66% · edit any field to update.
Editable estimate — not a loan offer. Estimates only; see data & estimate notes.
Momentum Property Score
21/100 is limited across the objective indicators below. It reflects only those measures — not the home’s quality, condition, or desirability.
A 0-100 score built from objective property and market data: flood risk, insurance, pricing, supply, affordability, and recent sales. Higher means more measures line up in a buyer’s favor. It reflects only the factors below.
Momentum Scores are objective, rules-based indicators computed from listing facts, public records, and recent nearby sales. They are not appraisals, valuations, investment advice, or judgments about a neighborhood or who should live there. Verify independently.
The Momentum read
🟢 Buyer-leaning conditions around this listing. 8.0 months of supply in the surrounding market and 139 days on market for this home, against a 119-day area median.Days on market:this home 139Area median: 119 daysWhy it matters: above-median time on market, together with the level of supply, is a clear sign of how much leverage sits with buyers.Momentum Research interpretation of the MLS facts in the snapshot above. Listing data provided by ScoutMLS® (Golden Isles Association of REALTORS®). The data is deemed reliable but is not guaranteed to be accurate by ScoutMLS. As of August 31, 2026.
🟡 Asking $3583 per square foot, about 207% above the community’s $1167 median. Sea Island Cottages’s 12-month median sold price per square foot is $1167. Median sold price per square foot is down 19.8% year over year. Confidence: Medium · 9 closed sales in 12 monthsMLS facts: ScoutMLS® closed sales. A per-square-foot gap is context, not an appraisal; condition, lot, and view set the final number here.
Recent Sea Island Cottages sales closed near 92.3% of original asking.Why it matters: the community’s own record shows how far opening prices typically move, and how often buyers compete without financing.Momentum Research analysis of ScoutMLS® records, community-level, 12 months ending August 31, 2026. Aggregates only; deemed reliable but not guaranteed.
What’s unique here: one of only 4 active listings in Sea Island Cottages, no CDD assessment.
Jump to: About this home · Every number, sourced · Monthly cost · Flood & risk · History · FAQ
Updated September 1, 2026 · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
About this home
A once-in-a-generation opportunity to own one of the most extraordinary oceanfront estates on Sea Island. LoweTide is a masterwork of global artisanship, architectural pedigree, and bespoke execution. Custom-built in 2021, the home reflects a deeply personal vision realized with uncompromising attention to quality, craftsmanship, and enduring design.
Spanning over 11,000 square feet, the residence unfolds as a series of refined living environments where scale, proportion, and materiality are meticulously considered. Interiors evoke a distinguished European private estate, featuring hand-carved moldings by J. P.
Weaver, museum-quality St. Louis crystal lighting, custom hardware by P. E.
Guerin, and bespoke cabinetry by Clive Christian. The primary kitchen is anchored by a La Cornue range and complemented by a professional-grade chef’s kitchen by Officine Gullo, custom-built on site with walk-in refrigeration, dedicated prep areas, and an adjacent chef’s office. Formal and informal spaces transition seamlessly—from a Parisian-inspired dining room beneath a skylight to a richly paneled library and bar.
The primary suite serves as a private sanctuary with dual studies, bespoke dressing rooms, and marble-clad baths. Guest accommodations offer ensuite privacy throughout, including a third-floor suite with elevator access. A rooftop terrace captures sweeping Atlantic views, while loggias, a solarium, and ocean-facing living spaces maximize natural light and horizon lines.
Outdoor living is equally exceptional, featuring a signature quatrefoil pool, pergola, and climate-controlled covered loggia with retractable screens and heated flooring. Multiple garden and fountain settings create a resort-like sense of privacy and serenity, while seamless indoor-outdoor flow accommodates entertaining on any scale. Additional features include a four-car garage with lift capability, staff quarters, fully integrated back-of-house operations, and state-of-the-art infrastructure throughout.
Crafted with hand-selected Italian marble, custom parquet flooring by Foglie d’Oro, limestone elements, and the work of heritage artisans, LoweTide stands as a rare expression of refined coastal living in one of the East Coast’s most exclusive enclaves.
Description provided by DeLoach Sotheby's International Realty and reproduced from the MLS; not independently verified.
Every fact, sourced
Listing data, public records, our calculations, and what to verify — each fact shown once. Estimates and calculations shown are for general information only, are not appraisals or advice, and should be independently verified.
Listing facts MLS
Public records & third-party data
Calculated estimates
Buyer should verify Buyer verify
Provided via the ScoutMLS® Internet Data Exchange (Golden Isles Association of REALTORS®) · Source: ScoutMLS® · © 2026 The Golden Isles Multiple Listing Service, Inc. · deemed reliable but not guaranteedIDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed by the MLS to be accurate.The Messtimate
This is a deliberately dumb estimate — living area times a range of recent neighborhood $/sq ft, and nothing else. It is not an appraisal, not market value, and not a valuation of this home. Even a tight range from comparable sales can’t price a specific home — here’s why.
Actual list price: $42,000,000 — compare it against the range above. The Messtimate is a blind sqft estimate; the list price reflects this specific home.
A 27% spread on the same house — and that gap is exactly what an automated guess can't see:
- Condition & updates — a renovated kitchen or new roof vs. dated finishes can swing value six figures; sq ft can't see it.
- The lot & views — a premium golf, water, or preserve lot vs. a road-facing one: same sq ft, very different price.
- Outliers skew it — one flip or distressed sale in the comps drags the whole $/sq ft up or down.
- Carrying costs & concessions — CDD, HOA, insurance, and seller-paid buydowns change what a buyer actually pays.
And here's what the live market is doing — which the number above ignores entirely:
- This home: 139 days on market vs. a 119-day community median
- 4 active listings competing, 1 under contract
- ≈8.0 months of supply
- 6 closed here in the last 12 months
For reference, this home is listed at $42,000,000 ($3,583/sq ft) — a number set with analysis a Messtimate can't do.
Selling your own home? Try the Messtimate on your address →
Methodology: 11,723 sq ft × $1,027–$1,307/sq ft from recent nearby closed sales (public records). Estimate for general information only; not an appraisal, valuation, or offer. Updated September 1, 2026.
Similar homes for sale near Sea Island Cottages
Active listings nearby at a comparable size and price. Listings held by brokerages other than Momentum Realty are marked with the listing broker. Deemed reliable but not guaranteed.
Price & listing history
Building permits
Flood zone & elevation
Sourced environmental data for the parcel. Confirm with FEMA and your insurer.
Not yet verified for this address. Look up the parcel at msc.fema.gov before relying on any flood assumption.
Approximate parcel elevation from USGS; confirm exact elevation with a survey.
This is a coastal Florida county. Premiums and coverage vary by home; obtain a quote from a licensed insurer.
Internet & broadband
AT&T Fiber covers much of NE Florida; confirm availability at the address.
Xfinity/Spectrum cable broadband is widely available.
T-Mobile / Verizon fixed-wireless as a backup option.
Recent sales activity in Sea Island Cottages
Recent comparable closed sales near this home, from public records. Summary figures are for general reference only and are not a valuation of this property. See the Sea Island Cottages neighborhood guide for more.
Recent nearby closings in the data set.
Canonical 12-month median closed price. Reference only.
Canonical 12-month median $/sq ft. Reference only.
Go deeper on Sea Island Cottages
See schools, amenities, builders, HOA/CDD detail, and every active & sold home in the community — the single biggest advantage of buying here over a portal.
Assigned schools
Schools currently assigned to this address in Glynn County, provided as neutral factual data. Assignments can change — confirm current zoning with the school district. This is not a statement about the home's suitability for any person or family.
Assigned schools per the MLS listing — assignments can change; confirm current zoning with the district. Browse school-zone pages →
Comparable recent sales
Recent closed sales nearby, with photos, so you can compare. Sold prices are public record, deemed reliable but not guaranteed.
No closely comparable recent sales were found in this data set.
Investment snapshot
Objective rental and cash-flow estimates for a buyer weighing this as an investment. Rough figures for general information only — not a guarantee of rent, an appraisal, or investment advice. Verify independently.
Buyer research checklist
A neutral list of items to confirm for any home. This is general guidance, not advice about this specific property.
- Confirm roof age and condition during inspection.
- Confirm HVAC age and condition during inspection.
- Request current HOA documents before relying on dues or restrictions.
- Obtain an insurance quote for this specific property.
- Confirm school zoning directly with the district.
- Order a survey to confirm lot boundaries.
- Review permit history with the county.
- Confirm whether flood insurance is required for this parcel.
- Confirm square footage and room dimensions independently.
- Ask the county how property taxes may change after a sale.
Approximate distances
Approximate drive times for general reference only.
Groceries, dining, and parks for this city — see the city guide.
Schools, taxes, and services are county-administered — see the county guide.
Amenities and HOA/CDD detail on the neighborhood guide.
View →Data sources & freshness
| Listing record | ScoutMLS®, refreshed twice daily (last: September 1, 2026) |
| Community market stats | ScoutMLS® closed sales, as of August 31, 2026 |
| Flood zone & elevation | Not verified for this address — look it up at msc.fema.gov |
| Taxes & monthly cost | Estimated from county rates; not a quote |
| Insurance figure | Modeled estimate; obtain a real quote before offering |
| Schools | 2025-26 district assignments; verify with the district |
Momentum Research lines are our own analysis of ScoutMLS® records; MLS data is deemed reliable but not guaranteed. Estimates are informational, not appraisals or advice. Methodology: how Momentum scores are computed.
Frequently asked questions
Why might my property taxes differ from the current owner's?
Florida's Save Our Homes rule caps annual assessment increases for homesteaded owners, and the assessment can be re-set after a sale. As a result a new owner's bill may differ from the seller's. Any tax figure shown here is an estimate, not the actual bill — confirm with the county property appraiser and tax collector.
Where does the flood-zone information come from?
A flood designation has not been verified for this address. Look up the parcel on FEMA's Flood Map Service Center (msc.fema.gov) and confirm with your insurer.
Can I rely on the figures on this page?
No. Estimated taxes, insurance, payments, and any market or comparable-sales summary are opinions and estimates for general information only and should not be relied upon. Verify all information independently before making any decision.
See 106 E 18th Street in person
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Opinion & estimate — do not rely on this page. Any figure on this page that is not a verbatim fact from the listing or a public record — including estimated property taxes, insurance, CDD/HOA amounts, mortgage payments, comparable-sales summaries, and market statistics — is an opinion and estimate provided for general informational purposes only. These figures may be inaccurate or out of date, are not appraisals, valuations, or financial, legal, tax, or investment advice, and should not be relied upon. Do not make any purchase, offer, financing, or other decision based on this page. Independently verify everything — price, square footage, lot size, year built, taxes, CDD/HOA, flood status, school assignments, permits, and community rules — with the listing broker, the county, your lender, a licensed inspector, an insurer, and your own advisors before acting.
Estimate methodology. Tax estimates apply a typical county millage rate to the list price and will differ from the actual assessed bill. Cost and market figures are derived from available data and simple calculations, not a professional appraisal. We make no representation that any estimate reflects fair market value.
Equal Housing Opportunity. Content on this page is compiled from public records, MLS data, and automated sources and may contain errors or be out of date. It is general information only, not a representation about any specific property, community, builder, or association. Verify information independently before relying on it. Momentum Realty supports the Fair Housing Act and does not discriminate on the basis of race, color, religion, sex, handicap, familial status, national origin, sexual orientation, or gender identity. Information about schools, distances, and amenities is provided as neutral factual data to help you research the property and is not a statement about who should or should not live here or the suitability of the home or neighborhood for any person or group. School data may change — confirm current assignments with the school district.
Found an error? If you are the owner, listing agent, or a party to this property and believe any information is inaccurate, email and we will review and correct or remove it promptly.
Automated content. Some summaries, distances, and estimates on this page are generated automatically from public and proprietary data sources and may contain errors or omissions. We strive for accuracy but cannot guarantee the completeness or accuracy of any information. Verify anything important independently.
No warranty; measurements & photos. No guarantee, warranty, or representation of any kind is made regarding the completeness or accuracy of any information, descriptions, or measurements on this page — including square-footage measurements and property condition — all of which should be independently verified through appropriate means, including in-person inspection and public records. Photographs may be virtually staged or digitally enhanced and may not reflect actual property conditions. Momentum Realty and its agents expressly disclaim any liability in connection with the information provided.
MLS / IDX. The data relating to real estate for sale on this web site comes in part from the Internet Data Exchange (IDX) program of the ScoutMLS® Internet Data Exchange (Golden Isles Association of REALTORS®). Real estate listings held by brokerage firms other than Momentum Realty are marked with the listing broker's name and include the name of the listing agent. Data provided is deemed reliable but is not guaranteed by the MLS to be accurate. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Source: ScoutMLS®. © 2026 The Golden Isles Multiple Listing Service, Inc. All rights reserved.
Listing data is deemed reliable but is not guaranteed and is subject to change or withdrawal without notice. Square footage and lot size are approximate. Real estate brokerage services provided by Momentum Realty, licensed in Florida and Georgia. © 2026 Move With Momentum LLC.