Outdoor Fireplace & Patio Cost: McLean & Great Falls VA

For most of the last decade, the Northern Virginia backyard was a summer room. You opened it up in May, you used it hard through August, and by the first cold snap in October the furniture went under covers and the space went quiet for six months.

That is the part of the 2026 outdoor living trend that actually matters, and it is not about furniture. Designers and builders across the country are reporting the same shift: the fire feature has moved from a decorative afterthought to the organizing element of the whole space, and homeowners are pairing it with overhead cover, drop-down screens and radiant heat so the patio works from March through December instead of June through August.

In our market, that changes the math. A patio you use four months a year is a luxury. A patio you use eight or nine months a year is a room — and rooms are what add value to a McLean, Great Falls or Arlington home.

Here is what that project actually involves, and what it costs.

The three tiers of fire feature (and what separates them)

Almost every conversation we have starts with a photo of a masonry fireplace and ends somewhere more practical. It helps to understand that there are really three products here, not one.

1. The gas fire pit or fire table — the entry point

A well-built gas fire pit is a masonry or steel enclosure with a burner, a media fill (lava rock, fire glass, or ceramic logs), and a gas supply. Nationally, a stone-veneer gas fire pit including the burner, media, gas line and permit typically lands in the $3,000–$8,000 range. In Fairfax and Arlington, expect the upper half of that band once you account for local labor rates and stone that matches an existing patio.

The 2026 version of this is the linear fire channel — a long, low rectangular burner, often six to ten feet, set into a seat wall or the edge of the patio. It reads as architecture rather than as an object, and it pairs well with the flat-roofed modern additions going up in Arlington and North Arlington.

2. The prefab firebox fireplace — the practical middle

A manufactured firebox with a stone or stucco surround gives you a true vertical fireplace with a chimney, at a fraction of the mass of full masonry. Nationally, contractor-installed prefab outdoor fireplaces generally run from the low $4,000s into the upper $9,000s for the unit and surround. Add site work, a footing, veneer selection and any gas run, and a realistic delivered range in Northern Virginia is closer to $12,000–$25,000.

This is where most of our clients land. It gives the room a focal wall and real radiant heat without the footing and engineering a full masonry stack demands.

3. Full custom masonry — the permanent version

A site-built masonry fireplace with a firebrick box, a proper flue, and a stone or brick surround starts in the low $10,000s on a national basis and scales well past $20,000 once you add a raised hearth, wood storage, a pizza oven, or a chimney tall enough to clear a nearby roofline. In our market, a substantial custom masonry fireplace with matching hardscape is more often a $25,000–$50,000+ line item.

The reason is not the stone. It is the footing. A masonry mass this size needs a frost-depth foundation, and in Northern Virginia that means excavation, forms, reinforcement and inspection before a single piece of veneer is set.

The line item nobody budgets: getting gas to the patio

This is where outdoor fireplace budgets break, and it is worth understanding before you fall in love with a rendering.

Running a new gas line is priced by the linear foot, and the number is not small. Depending on pipe size, routing, and whether the run is buried or under a deck, installed costs commonly land somewhere between $20 and $95 per linear foot, with buried runs and larger-diameter pipe at the high end. A 50-foot run from the meter to a far corner of the yard can add $2,000–$3,000 on its own, and each additional 10 feet of buried line typically adds a few hundred dollars once trenching, pipe and inspection are counted.

Three things drive that number in our market:

Distance from the meter. Great Falls and outer McLean lots are deep. The meter is usually on the side of the house and the fire feature is usually at the far end of the yard.
Meter and regulator capacity. A fireplace, a grill, a heater and a pool heater together can exceed what your existing service supports. Sometimes the utility has to upsize the meter, and that is a separate schedule you do not control.
What is already in the ground. Irrigation, low-voltage lighting, invisible fence, and existing utilities all have to be located and worked around.

If you are on propane rather than natural gas — common on the larger Great Falls parcels — you are trading the meter conversation for a tank conversation: siting, setbacks, and whether you own or lease.

Fairfax County and Arlington: what actually needs a permit

Rules vary by jurisdiction and change, so treat this as a planning framework and confirm the specifics with your county before you sign anything.

In general, across Fairfax County, Arlington and the surrounding jurisdictions:

Permanent gas piping requires a permit and inspection. This is the consistent one. New gas line runs get pressure tested and inspected before they are covered.
A masonry fireplace with a footing is a structure. Expect a building permit, and expect setback rules to apply to how close it can sit to a property line.
Overhead cover triggers its own review. A roofed structure over the patio — a pavilion, a covered porch extension, a solid-roof pergola — is a building permit item, and if it attaches to the house it also becomes a question of how it ties into the existing roof and framing.
Impervious surface and stormwater rules apply. Large patios in Arlington in particular run into lot coverage limits faster than homeowners expect.
An HOA is a separate approval from the county. In much of McLean, Vienna and Great Falls the architectural committee reviews materials, height and visibility from the street. That review runs on its own calendar. Start it early.

Permit fees themselves are usually a modest part of the budget — commonly a few hundred dollars for the gas and building permits combined. The schedule is the real cost. Design, HOA review, permitting and scheduling can easily consume six to ten weeks before anyone breaks ground.

Making it a four-season room, not just a warm corner

A fireplace alone extends the season by a few weeks. Extending it by months takes three more things:

Overhead cover. A roof stops the two things that end an evening: rain and radiant heat loss to the open sky. A covered structure with a finished ceiling, fan and integrated lighting is the single biggest usability upgrade.
Wind and screen control. Motorized drop-down screens on the two prevailing-wind sides turn a covered patio into something close to an enclosed room without triggering the code and cost of a true conditioned addition.
Supplemental heat. Ceiling-mounted infrared or gas heaters do the work the fireplace cannot do across a whole space. This is a small line item that dramatically changes November and March.

Layer those onto a fire feature and you are usually looking at a total project in the $45,000–$120,000 range in Northern Virginia, depending heavily on the size of the cover, the finish level, and whether the structure attaches to the house.

Why fall is the right time to build this

There is a scheduling logic to starting now rather than in April.

Concrete and masonry work well in cool, dry weather — better than in August humidity. Excavation is cleaner in fall soil than in spring mud. And crucially, the good crews in this market are booked in spring: everyone decides in March that they want a patio by Memorial Day, and by then the calendar is gone.

A project designed and permitted in September and October is a project that gets built in the shoulder season and is finished for spring — instead of a project that starts a queue in April and lands in July, after most of the season you were buying is already over.

FAQ

Do I need a permit for an outdoor fireplace in Fairfax County? Generally yes for the gas piping, and generally yes for a masonry fireplace with a footing, because it is treated as a structure with setback requirements. Portable propane fire tables are usually a different matter. Confirm the current requirements with Fairfax County Land Development Services or your local jurisdiction before ordering materials.

Is a gas or wood-burning outdoor fireplace better? Gas wins on convenience, cleanliness and instant use, and it is what most of our Northern Virginia clients choose. Wood wins on heat output, flame quality and the experience. If you want both, a gas starter in a wood-burning firebox is a common compromise.

How much does it cost to run a gas line to a fire pit? Installed gas line runs commonly fall between roughly $20 and $95 per linear foot depending on pipe size and routing, so a long run across a deep lot can add several thousand dollars. Get this priced during design, not after — it is the most common budget surprise on these projects.

Will an outdoor fireplace add value to my home? A well-integrated covered outdoor room with a fire feature is one of the more reliably appreciated exterior upgrades in our market, because buyers read it as living space rather than as landscaping. A freestanding fire pit dropped in the middle of a lawn does considerably less.

How long does the whole project take? Plan on six to ten weeks of design, HOA review and permitting, then roughly three to eight weeks of construction depending on whether you are adding overhead cover. Weather and inspection scheduling both move the number.

Ready to plan your outdoor room?

Karma Construction Group has been building in the DMV since 2012, and we design outdoor living projects as construction projects — footings, gas, structure and permits handled together, not as a landscaping add-on that runs into the county later.

Call 202-798-7663 or request a free consultation at karmaconstructiongroup.com to walk your yard and get a realistic scope, schedule and budget before spring pricing sets in.