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Experience the pinnacle of Northshore living at 1815 Lakeshore Drive, a residence that seamlessly blends storied Mandeville history with modern luxury. Officially recognized on the National Register of Historic Places, the Flagstaff House (Circa 1850) offers a rare opportunity to own a piece of Old Mandeville's legacy on prestigious Lakeshore Drive. This elevated Colonial Revival home captures the essence of 19th-century coastal architecture. From the moment you step onto the expansive front porch, you are greeted by breathtaking views of Lake Pontchartrain. It is the ultimate vantage point for enjoying Mandeville's legendary lakefront sunsets. Inside, the home radiates warmth and character with authentic old-growth pine floors throughout the entire residence. The charming kitchen features marble countertops and stainless steel appliances that beautifully complement the home's timeless pedigree. The property is a true rarity for the lakefront, sitting on an expansive lot of over half an acre. This sprawling estate provides a private backyard sanctuary designed for both relaxation and grand entertaining. A refreshing in-ground swimming pool serves as a centerpiece for the grounds. This abundance of green space and outdoor living area is seldom found in such a prime location. Additionally, the estate includes a detached 490-square-foot guest quarters, providing a versatile independent space perfect for a home office, art studio, or a private retreat for guests. Situated in the heart of Old Mandeville, this home offers a lifestyle of unmatched convenience and charm. Residents can enjoy the ease of walking to all of Old Mandeville's charming restaurants and local businesses. For those requiring access to the Southshore, the property is conveniently located just 3 miles from the Lake Pontchartrain Causeway. Rarely does a property of this historic significance, acreage, and beauty become available. Schedule your private tour of the Flagstaff House today.
| DAYS ON MARKET | 6 | LAST UPDATED | 5/4/2026 |
|---|---|---|---|
| YEAR BUILT | 1850 | COUNTY | St. Tammany |
| STATUS | Pending | PROPERTY TYPE(S) | Single Family |
| ADDITIONAL DETAILS | |
| AIR | Multi Units |
|---|---|
| AIR CONDITIONING | Yes |
| APPLIANCES | Dishwasher, Disposal |
| BARN/EQUESTRIAN | Yes |
| CONSTRUCTION | Wood Siding |
| FIREPLACE | Yes |
| INTERIOR | Vaulted Ceiling(s) |
| LOT | 0.59 acre(s) |
| LOT DIMENSIONS | 103 x 250 |
| POOL DESCRIPTION | In Ground |
| STORIES | 2 |
| STYLE | Colonial |
| VIEW | Yes |
| VIEW DESCRIPTION | Water |
MORTGAGE CALCULATOR
TOTAL MONTHLY PAYMENT
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*Estimate only
Listed with United Real Estate Partners LLC
The data relating to real estate for sale on this web site comes in part from the IDX Program of the Realtor® Association of Acadiana’ MLS. Real Estate listings held by brokerage firms other than ReHive LLC are marked with the MLS approved icon for IDX (a little black house).
IDX information is provided exclusively for consumers’ personal, non-commercial use, that it 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 accurate by the MLS.
Copyright 2026 REALTOR® Association of Acadiana MLS. All rights reserved
This IDX solution is (c) Diverse Solutions 2026.
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