Mountainside
Homes for Sale in Cumming, GA
All 460 homes for sale in Cumming, GA · median $624,950 · 266 homes for sale in 30040
True comps, carrying-cost math, and listings before the portals.
Photo courtesy of Andrea Whalen, Keller Williams Realty Atl. Partners · via Georgia MLS
Over the 12 months ending 2026-09-20, 3 recorded sales closed at a median of $650,000, $245 per square foot, a median 28 days on market, sellers accepting 94% of original asking. Homes listed or recently sold were built 1969–2025 with 1 new construction. At the median price and Forsyth County's 2025 rate of 21.42 mills, annual property tax runs about $5,570.
| Location | Cumming, Forsyth County, GA · ZIP 30040 |
|---|---|
| Amenities listed by sellers | None, Carbon Monoxide Detector(s), Near Shopping, Security System |
| Sale prices, last 12 months | $650,000 median across 3 closed sales · $245 per sq ft |
| Days on market (closed sales) | 28 median |
| For sale right now | 0 active, 0 pending |
Data as of September 20, 2026. Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed. Market figures describe homes, not residents. Cite as: Momentum Realty, “Mountainside key facts,” movewithmomentum.com/neighborhoods/mountainside, data as of September 20, 2026.
The number that matters most in Mountainside right now is the price-per-square-foot, sitting at $245.17. With a median price of $650,000, that points to homes with real size or lot behind the number rather than a premium paid for finishes or amenities — worth confirming with a walkthrough, since the MLS data alone does not show a clubhouse, pool, or gate tied to this community.
A median of 28 days on market is a moderate pace — not a bidding-war environment, but not a stale one either. Sellers pricing near recent closings should expect qualified interest within about a month; buyers have enough runway to inspect and negotiate rather than waive contingencies to compete.
Nearby homes for sale
No active listings inside MountainsideHomes for Sale in Cumming, GA right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.
Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.
The 60-Second Overview
Mountainside market snapshot (as of September 20, 2026): the median sale price is about $650K ($245 per sq ft over the trailing 12 months of closed sales), and a median 28 days on market for closed sales.
In ZIP 30040 (Cumming), 569 homes closed in the last 12 months at a median of $649K ($213/sq ft), down 2.8% year over year, with a median 35 days on market. Right now 170 active and 42 pending listings put supply at about 5.0 months — a balanced market. See the live ZIP 30040 housing market.
Georgia MLS sales records identify 8 homes in Mountainside that have changed hands since 2023, built between 1969 and 2017 (median 1990), with a median living area of about 2,615 sq ft and a typical 3-bedroom, 3-bath layout; 100% are single-family homes. Source: Georgia MLS closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community. Georgia has no statewide parcel roll comparable to Florida’s DOR file, so ownership and homestead shares are not shown.
Mountainside sits in Cumming, within Forsyth County, an area of north Georgia's exurban growth corridor where new and resale inventory both move through the GAMLS feed. The current snapshot reflects three months of closings, so it captures a real but relatively small sample.
The setting & the homes.
Aerial and on-site photos of Mountainside. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
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MountainsidePhotos from Georgia MLS listings in Mountainside; content deemed reliable but not guaranteed.
Who Mountainside is best for.
Best for
- Prioritizing overall square footage and lot size over a documented amenity package.
- Wanting a market with enough days-on-market cushion to complete due diligence before competing hard.
- Targeting Forsyth County for its location within the broader Cumming growth corridor.
Probably not for
- Requiring a confirmed pool, clubhouse, or gated amenity set as a baseline before touring.
- Needing a fast, sub-two-week close in a highly competitive bidding environment.
- Working from a fixed budget below the area's median without flexibility on condition or size.
Housing distress & ownership in Mountainside, Cumming
Who owns here, how much is not owner-occupied, and how much for-sale inventory is under distress.
Source: Momentum Realty Research. Ownership & parcels from the FL DOR 2025 tax roll; distress from MLS active-listing status/remarks; price from MLS closed sales. Listing data © 2026 Georgia MLS (GAMLS). Information is deemed reliable but is not guaranteed. Deemed reliable but not guaranteed.
Mountainside on the map.
Every active, pending, and recently sold home, plotted. Toggle the layers and tap a home for the details.
Listing locations from Georgia MLS. Map data © OpenStreetMap, tiles © CARTO.
The Mountainside buying strategy.
If we were buying in Mountainside today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Mountainside.
What the numbers are telling you
At $650,000 median with $245.17 per square foot, Mountainside reads as a mid-size-to-larger home market rather than a premium-finish one — buyers should expect that price to buy square footage and lot, and treat any specific interior upgrades as a line-item to verify home by home rather than assume from the area's numbers.
No community amenities are identified from current MLS listings, which does not mean none exist — it means the listings feeding this snapshot did not tag any. Anyone weighing lifestyle features like a pool, trails, or a clubhouse should ask directly about HOA structure and shared amenities before writing an offer, since that detail sits outside what this data set confirms.
The location and the amenities are priced into every listing in Mountainside. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
A three-month closing window is thin enough that headline stats can shift with the next handful of sales. We track the underlying comps in Mountainside in real time, so pricing conversations are based on what is actually closing now, not a stale average, and so any amenity or HOA questions get answered before they become a surprise at closing.
Mountainside in 15 seconds.
HOA, CDD & Fees
- HOA status not on record. Verify any dues before you offer
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a Mountainside buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Mountainside sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Mountainside, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Mountainside home worth?
Get a no-obligation home value based on real comparable sales in Mountainside, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See all homes for sale in Cumming →
Frequently Asked Questions
What is the median home price in Mountainside?
How long do homes in Mountainside take to sell?
Who is the best real estate agent for Mountainside?
How do I find a top Cumming real estate agent who knows Mountainside?
Can Momentum Realty connect me with an agent for Mountainside?
Where is Mountainside, and what county is it in?
Should you buy in Mountainside?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Live listings | Georgia MLS, refreshed twice daily (last: September 21, 2026) |
| Community market stats | Georgia MLS closed sales, 12-month windows ending September 20, 2026 |
| Under-contract shares | Georgia MLS records, as of 2026-09-20 |
| Historical depth | Closed-sale records back to 2023 (8 transactions analyzed) |
Verify the primary sources yourself: Georgia DOR · U.S. Census · FEMA flood maps.
Momentum Research figures are our own analysis of Georgia MLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
Own a home here?
You just read the data. Now see what your home is worth.
The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum will price yours against live local comps — a real number, not an algorithm’s guess.
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See how Mountainside fits the bigger picture — live prices, inventory, and Momentum Scores:
Nearby Communities
Explore more neighborhoods near Mountainside with Momentum Realty’s local guides.