# 4199 20th Avenue, Bay Saint Louis, MS 39520 > **TL;DR:** 3bd/3ba single family, $438,500 ($341/sqft), built 2026, 1,287 sqft. > Waterfront, A/C. Est. $2,345/mo. Listed 63 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $438,500 | | Price/sqft | $341 | | Bedrooms | 3 | | Bathrooms | 3 full | | Square Feet | 1,287 | | Year Built | 2026 | | Lot Size | 4,792 sqft (0.11 acres) | | Stories | 1 | | Property Type | Single Family (Single Family Residence) | | Status | Active | | Days on Market | 63 | ## Why This Home Stands Out - **Waterfront** - Waterfront location listed ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $2,217 | | Estimated Insurance | $128 | | **Total** | **$2,345** | ## Key Amenities - Waterfront - A/C ## Property Highlights - Built in 2026 - 0.11 acre lot - 2 parking spaces - Waterfront ## Description ### Agent Description Waterfront new construction in Bay St. Louis! Currently under construction with an anticipated completion date of November 30, 2026, this thoughtfully designed 1,287-square-foot, 3-bedroom, 3-bath home offers a functional layout with plenty of space for family and guests. The floor plan features a primary suite, a second private suite, and an additional guest bedroom with access to a third full bath-making it an excellent option for a primary residence, weekend getaway, or coastal retreat. Get this one under contract early and take advantage of the opportunity to choose select paint colors and/or flooring, subject to the stage of construction and builder allowances. The home will feature stainless steel appliances, crown molding, a mid-deck, downstairs storage room, and private boat dock. Enjoy waterfront living with space to relax, entertain, fish, and keep the boat just steps from home. If you've been looking for an affordable new construction waterfront home in Bay St. Louis, this is an opportunity you don't want to miss. Secure it now and watch your new coastal home come to life! ## Location - **Address:** 4199 20th Avenue, Bay Saint Louis, MS 39520 - **County:** Hancock - **Neighborhood:** Shoreline Park - **Coordinates:** 30.330809, -89.405218 - **Google Maps:** https://www.google.com/maps?q=30.330809,-89.405218 ## Listing Agent - **Name:** Sandy E Walsh · **License:** B-24689 - **Brokerage:** Allied Realty Coastal Homes - **Broker Phone:** (228) 220-1294 - **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/4199-20th-Ave_Bay-St-Louis_MS_39520_M72196-25414?f=listhub&s=MGCMLSMS&m=4160725&c=propsimple) ## Photos ![4199 20th Avenue - Photo 1](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f3727571214r.jpg) ![4199 20th Avenue - Photo 2](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f3208120637r.jpg) ![4199 20th Avenue - Photo 3](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f2848548689r.jpg) ![4199 20th Avenue - Photo 4](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f3943046116r.jpg) ![4199 20th Avenue - Photo 5](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f1517516430r.jpg) ![4199 20th Avenue - Photo 6](http://lh.rdcpix.com/f0770bb8e2fef3a9320084982508b26al-f1311264304r.jpg) --- **MLS#:** 4160725 | **Updated:** 2026-10-23 **Source:** listhub *Copyright © 2026 MLS United. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.* [View on PropertySimple](https://www.propertysimple.ai/listing/4199-20th-avenue-bay-saint-louis-ms-39520-e17da1ec9daf405abf49b4e665c37d0c) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://www.propertysimple.ai/listing/4199-20th-avenue-bay-saint-louis-ms-39520-e17da1ec9daf405abf49b4e665c37d0c#listing", "url": "https://www.propertysimple.ai/listing/4199-20th-avenue-bay-saint-louis-ms-39520-e17da1ec9daf405abf49b4e665c37d0c", "name": "4199 20th Avenue, Bay Saint Louis, MS 39520", "description": "Waterfront new construction in Bay St. Louis! Currently under construction with an anticipated completion date of November 30, 2026, this thoughtfully designed 1,287-square-foot, 3-bedroom, 3-bath home offers a functional layout with plenty of space for family and guests. 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