Madison County One statewide code, no local amendments

Barndominium Builders in Madison & Rappahannock Counties, VA

Madison and Rappahannock adjoin, share a planning district and both run up onto the Blue Ridge, and almost nothing else about building on them is the same. Rappahannock County's agricultural district lists a two-acre minimum lot size on one row of its chart and a maximum density of one dwelling per twenty-five acres on the row above it, and the second number is the one that decides whether a house can go up. Madison County caps the rate of subdivision instead, at four lots per decade in A-1, and asks three acres for every dwelling on a parcel. Madison publishes a complete set of Table R301.2 design figures and runs a shrink-swell soils policy with a mapped 500-foot trigger; Rappahannock publishes neither, and has a riparian buffer overlay Madison does not have. Two building departments, two zoning ordinances, two fee schedules, one page that keeps them apart.

Madison & Rappahannock Counties at a glance

County: Madison County
Population: 21,676
ZIP codes: 22727, 22743, 22738, 22735, 22719, 22709, 22732, 22723, 22722, 22711, 22740, 22747, 22627, 22749, 22716, 22623

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Building conditions in Madison & Rappahannock Counties

The building code itself is the same in every Virginia locality, and no county, city or town may amend it. What changes from one to the next is who issues the permit and inspects the work, what that office charges, how the parcel is zoned, and the Table R301.2 design criteria the locality publishes — the 2021 Virginia Residential Code prints that table blank, with the instruction that additional criteria shall be established by the local jurisdiction. Those local numbers are what your drawings have to satisfy.

Build conditions for Madison & Rappahannock Counties, drawn from the sourced facts on this page. Every figure above is cited in the quick-facts panel below, with its source and vintage.

Two acres in Rappahannock is a minimum, not a dwelling right

The Rappahannock County district chart puts a two-acre minimum lot size in the A district on one row and a maximum density of one dwelling unit per twenty-five acres on the row above it, and footnote 1 sends you to Section 170-22, which says the maximum density "shall not be exceeded" and is calculated on the gross area of the lot. Floodplain, quarries, water bodies larger than two acres and slopes over twenty-five percent count at only thirty percent toward that allowance. There is relief for existing owners: Section 170-23 says a lot legally recorded before the ordinance took effect, which met the rules when it was recorded, may be used for a permitted use "notwithstanding the minimum lot area, frontage and lot width requirements" of its district, provided all other district regulations can be met. What it does not lift is a deed restriction, and that is the trap worth knowing about before you buy.

Rappahannock County Code Sections 170-22, 170-23 and 170-37, https://ecode360.com/8808141 and https://ecode360.com/8808174 (raw HTML read 2 Sep 2026)

One county publishes its design numbers; the other does not

The 2021 Virginia Residential Code prints Table R301.2 blank and leaves the numbers to the locality. Madison County fills the whole table in and posts it: frost line 18 inches, ground snow load 30 psf, ultimate wind speed 110 mph, no special wind region, no windborne debris zone, topographical effects Yes, seismic design category B, weathering severe, termite infestation moderate to severe, ice barrier required, winter design temperature 10 degrees, air freezing index 500, flood zones A, AE and unshaded X, and a presumptive soil bearing capacity of 2000 psf unless a site-specific test says otherwise. Madison also requires those criteria to be printed on the drawings. Rappahannock County publishes no equivalent table anywhere on its site, and its permit application leaves the code editions as blanks for the applicant to complete, so those figures come from the Building Official on the project. Nothing here is carried across the county line.

Madison County Building Department, Local Design Criteria, https://www.madisonco.virginia.gov/350/Local-Design-Criteria and the county's Residential Permit Application and Checklist (read 2 Sep 2026); Rappahannock County Building Permit Application (PDF read 2 Sep 2026)

Madison makes shrink-swell soil a permit condition; Rappahannock does not

Madison County's Building Official has published an Expansive Shrink-Swell Soil Policy since January 2021, revised July 2022, and it bites on "all proposed buildings and structures, including additions and accessory structures". The county maps three tiers on its public GIS: inside a green area or within 500 feet of one, footings go a minimum of 24 inches below grade; inside an orange or red area or within 500 feet of either, a site-specific soils test is required, and if it finds moderate or high shrink-swell the foundation must be designed by a Virginia registered design professional. In lieu of testing you may simply assume expansive soil and have the foundation engineered. Rappahannock County publishes no such policy, form or map, and the soil data supports that: USDA NRCS maps no acreage at all in Rappahannock in the high or very high linear-extensibility bands, against roughly 949 acres in Madison. Both counties carry a large moderate band, about 39,100 acres in Madison and 24,700 in Rappahannock, and that is where a wide slab actually gets hurt.

Madison County Building Department, Expansive (Shrink-Swell) Soil Policy dated 01-26-2021 revised 07-01-2022, https://www.madisonco.virginia.gov/DocumentCenter/View/513/Expansive-Soil-Policy-PDF; USDA NRCS Soil Data Access, SSURGO survey areas VA113 and VA157, queried 2 Sep 2026

Rappahannock has a stream buffer without a Chesapeake Bay Act obligation

Neither county is on the Chesapeake Bay Preservation Act's statutory Tidewater list, and the usual inference from that is wrong here. Rappahannock County invented its own Stream Protection Overlay District in 2008: a riparian buffer of no less than 100 feet each side of perennial streams and adjacent wetlands, widened to 125 feet where the bank slopes 15 to 25 percent and to 150 feet where it slopes over 25 percent, with trees above six inches in diameter protected and no removal that disturbs the soil. Read the applicability as carefully as the width, though. The overlay is marked on the county's district chart for RR-5, R-2, RV, CV, CG, HC and I, and left blank for the Conservation and Agricultural districts, and its trigger is a subdivision of three lots or more or commercial work disturbing 10,000 square feet. Madison County has no stream or riparian overlay at all; its only water overlay is flood protection.

Rappahannock County Code Section 170-45.2 and Section 170-37 footnote 5, https://ecode360.com/8808268 and https://ecode360.com/8808174 (raw HTML read 2 Sep 2026); Madison County Code, Appendix 1 Zoning, article list, and Chapter 14 Environment, via api.municode.com (read 2 Sep 2026)

The towns zone; the counties permit

Virginia Code Section 36-105 says a town under 3,500 people may elect to administer the Building Code, and where it does not, "the county in which the town is situated shall administer and enforce the Building Code for the town". Neither town here has elected. The town of Washington, which is in Rappahannock County and is nothing to do with Washington County in the far south-west, publishes a directory listing a mayor, treasurer, town manager, attorney and a contract zoning administrator, and no building official. The town of Madison, the county's only incorporated town, publishes the same pattern. Madison County wrote the boundary into its own code: its Building Department enforces Parts I and II of the statewide code countywide, and only the Part III maintenance provisions stop at the town line. Inside either town, though, the zoning is the town's own, from a different ordinance and a different board of zoning appeals.

Va. Code Section 36-105(A), https://law.lis.virginia.gov/vacode/title36/chapter6/section36-105/ (verified on the in-page breadcrumb, read 2 Sep 2026); Madison County Code Sections 8-2 and 8-3 via api.municode.com; Town of Washington town directory, https://washingtonva.gov/government/town-directory/; Town of Madison government information page, https://www.townofmadisonva.com/government-information

A kitchen in the shop changes what the shop is

Rappahannock County's accessory use section allows guest quarters in an accessory structure only on lots of at least two acres, and then says that if that space "has kitchen facilities, it shall be deemed an accessory dwelling unit that requires a special use permit or special exception". An accessory dwelling unit is a special exception in the agricultural district, decided by the Board, at a fee of 1,200 dollars. The same section says an accessory building attached to the house by any wall or roof "shall be deemed to be a part of the principal building", which pulls the whole structure onto the principal setbacks of 50 feet side and rear, and that no accessory structure may be occupied until the principal structure is. Madison County's constraint is height instead: no accessory building within 20 feet of a lot line may exceed 15 feet, and "all accessory buildings shall be less than the main building in height", so a tall detached shop beside a modest house is not an accessory building there.

Rappahannock County Code Section 170-70 B(9), D(1) and E(1), https://ecode360.com/8808915, and the Section 170-36 use chart; Madison County Code, Appendix 1 Zoning, Section 5-8-6 applied to A-1 by Section 4-8 and to C-1 by Section 3-8, via api.municode.com (read 2 Sep 2026)

Also worth knowing before you build in Madison & Rappahannock Counties

A lawful two-acre lot can carry a covenant barring any house: Rappahannock County's own guidance memorandum on maximum density, issued 5 October 2023 over the names of the County Administrator and the Zoning Administrator, opens by saying the rule "seems to cause community confusion" and then explains why. Density is measured against the parent parcel as it stood on 5 December 1986, counting the dwellings already on it. Its worked example: a hundred-acre agricultural parcel with three dwellings, split to make two more two-acre lots, reaches one dwelling per twenty acres and is refused unless one of the new lots carries "a covenant or other restriction disallowing the development of dwelling units" under Section 147-41. So a parcel can be divided into lots that meet every acreage and width requirement and still be sold with no right to build on it. In Rappahannock the acreage does not answer the question; the title does.
Madison throttles subdivision by rate, not by density: Madison County's agricultural district asks three acres of lot area, and three acres for every dwelling where more than one sits on a parcel. Its conservation district asks ten acres, and ten per dwelling, and it is drawn around land that is predominantly above 800 feet in elevation, class 4 or poorer soil, and steeper than 15 percent, which is to say Madison's Blue Ridge side. On top of that, Section 4-11 as amended in August 2024 says no parcel in A-1 may be subdivided into more than four smaller lots, including the residue, within any ten-year period, no lot created by subdivision may be split again for ten years from recordation, and a boundary line adjustment bars another for a year. That is a completely different mechanism from Rappahannock's density cap and it produces a different answer on the same size of tract.
Both counties measure some setbacks from the middle of the road: In Rappahannock County the front yard is measured from the centre line of the street, not the right of way, and in the agricultural district that is 200 feet on Route 211, 100 feet on a secondary road and 100 feet on a private road, with 50 feet to the side and rear for a principal building, a 400-foot minimum lot width and a 35-foot height limit. In Madison County a structure sits 50 feet or more from a street right of way that is 50 feet or wider, or 100 feet or more from the centre line where the right of way is narrower, with 25-foot side yards, a 50-foot rear yard, accessory buildings 10 feet off a side or rear line, and 250 feet of frontage in A-1 or 300 in C-1. Madison also spaces entrances: 600 feet between entrance centre lines on a Virginia primary road and 900 feet on US Route 29, grandfathered only for parcels recorded before 20 June 1990.
Two fee schedules, two shapes: Rappahannock County charges new residential construction at 20 cents per square foot with a 120 dollar minimum, and an accessory structure at 17 cents with a 100 dollar minimum, plus a 75 dollar plan review fee that must be paid at submission, a separate zoning permit at 100 dollars, and a special exception at 1,200 dollars. Its schedule was adopted 7 July 2025. Madison County charges residential new construction and remodels at 18 cents per square foot with a 75 dollar minimum, a zoning permit at 100 dollars for a new dwelling and 50 for an accessory structure, a special use permit at 750 dollars and a variance at 400, on a schedule updated in July 2026, and it doubles the permit fee for work started without one. Both add the 2 percent state levy on building permits. Madison also charges 150 dollars for the single-family agreement in lieu of an erosion and sediment plan, with a separate 1,000 dollar bond.
Madison wants two drainfields, and a built road: Madison County's zoning ordinance makes the building permit conditional in ways that catch cheap mountain acreage. Every lot must have either an approved sewage disposal system or connection, or "one approved drainfield area and one approved reserve drainfield area equal in size", a 100 percent reserve, in a county with no Chesapeake Bay Act obligation to require one. No building permit issues until a zoning permit has issued first. And no building permit issues for a structure on a parcel reached by a private road until that private road is built. Septic sizing itself is state law in both counties: 150 gallons per day per bedroom, with no living-area band and no row for a shop, a garage or a barn, and the Health Department issues the permit.
How much of each county is actually steep: USDA soil survey data puts roughly 36,100 acres of Rappahannock County on soil components whose maximum slope exceeds 25 percent, about 27 percent of the county's mapped soil area, against 31,800 acres in the larger Madison County. In Rappahannock that number is not a curiosity: ground steeper than 25 percent counts at only 30 percent toward the density allowance, so the same tract yields fewer dwelling rights the steeper it is. The 14 to 25 percent band is treated differently again, and in a way most readers get backwards, because the fifty percent reduction for that band applies in every district except Conservation and Agricultural. These are survey-scale figures, not a determination about a parcel; the county measures the actual grade on the plat.
The farm building exemption dies the moment anyone lives in it: Both counties run the exemption on an affidavit and both charge for it. Madison County's Farm Structure Policy and Affidavit quotes the statutory definition in full, a building "not used for residential purposes" on property where farming operations take place, asks two gating questions, and says plainly that a No to either means the structure is not exempt. It also demands documentation that the property is a farm operation, naming a Schedule C or Schedule F, plus a plot plan, and it makes the owner consent to county inspection. It warns that a false affidavit is a misdemeanour carrying a fine of up to 2,500 dollars, with each day after conviction a separate offence, and that the exemption reaches only the building code, not the zoning or erosion ordinances. Rappahannock County publishes its own Farm Building Affidavit Application and carries the affidavit as a line item on its fee schedule.
Where the two counties agree: 10,000 square feet of disturbance: Both counties regulate land disturbance from 10,000 square feet, and both run an erosion and sediment control programme rather than a full local stormwater programme. Madison County's ordinance says in terms that the Virginia Department of Environmental Quality, on behalf of the State Water Control Board, administers the stormwater programme in Madison County. Rappahannock County established its erosion and sediment control programme under Section 62.1-44.15:54, gives itself 60 days to review a plan, requires a named responsible land disturber before any disturbance, and sets a flat 1,000 dollar civil penalty for starting without an approved plan. One caution for anyone following cross-references: Rappahannock's zoning still points at a county stormwater chapter that was repealed in 2014.
Neither county has adopted a mountain ridge ordinance: Virginia Code Section 15.2-2295.1 lets a locality protect mountain ridges, defining one as land at 2,000 feet or higher and at least 500 feet above the adjacent valley floor. It is an enabling statute; it regulates nothing by itself. Rappahannock County's overlay article establishes exactly three overlays, floodplain, general commercial and stream protection, and Madison County's zoning has one, flood protection. Neither has a ridge overlay. What each does instead is indirect: Madison zones its high, steep, poor ground as Conservation and asks ten acres per dwelling for it, and Rappahannock discounts ground over 25 percent to thirty percent of its area in the density sum. The town of Washington goes further inside its own limits, requiring new structures in its rural residential district to sit below the hilltops and be screened from the historic core.
The market: small tracts, and a metro line that runs between them: Madison County has 99,536 acres in farms, 48.5 percent of its land, across 447 farms with a median size of 78 acres, and 176 operations under 50 acres. Rappahannock County has 66,894 acres in farms across 399 farms, but a median farm of only 45 acres and 205 operations under 50 acres, on barely half Madison's population. The reason is the census line: Rappahannock sits inside the Washington-Arlington-Alexandria metropolitan area and Madison does not, so Rappahannock has been subdivided harder despite the tighter density rule. Both counties sit in the Rappahannock-Rapidan planning district with Culpeper, Fauquier and Orange, and both are within reach for buyers priced out of Prince William, Fairfax and the Manassas cities.

Below the slab

The expensive surprises are in the ground, not the building

What moves a Virginia budget is usually below grade, and it is soil rather than rock. Five localities already treat a soil answer as a condition of the permit rather than a recommendation — Fauquier, Chesterfield, Isle of Wight, Madison and Culpeper each require a soil report, an engineered foundation design, or both before the footings are approved. Chesterfield asks for one on every new house with no opt-out, on its own published reasoning that small amounts of shrink-swell soil may turn up anywhere in the county. Virginia Energy puts the same point bluntly: standard homeowner's insurance does not cover damage from expansive or compressive soils. Along the Interstate 81 corridor the question changes shape entirely — Virginia Energy counts twenty-seven Virginia counties in the karst zone that follows that road, where what matters is what is under the slab rather than what the slab sits in, and karst does not stay west of the Blue Ridge: Loudoun County publishes karst terrain of its own, on the other side of it. The same ground then sizes the septic system, because 12VAC5-610 works from bedrooms and soil texture — 150 gallons a day per bedroom, with no row in the table for a shop, a garage or a barn at all, and clay assigned to the slowest texture group at 91 minutes per inch or worse, past the 45 minutes per inch that makes a reserve drainfield mandatory. The soil that needs a foundation engineer multiplies the drainfield. So the site work, the foundation and the drainfield get resolved together rather than one at a time. We price the dirt before we price the building.

What we build in Madison & Rappahannock Counties

All nine services are available in Madison & Rappahannock Counties. What a build costs depends far more on the parcel than on square footage, so we price against your land rather than publishing a rate card.

Custom Plans

Barndominium floor plans drawn to your parcel and to the design criteria your own Virginia locality publishes, not to a generic national spec.

Barndominium Kits

Engineered barndominium shell packages delivered to your Virginia land, drawn to the criteria your own building department fills in.

Turnkey Builds

Start to finish barndominium construction: permits, site work, shell and full interior finish, under one contract and one schedule.

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What a build looks like

Three stages every Madison & Rappahannock Counties project passes through, from a raw parcel to a finished home. Site work first, because that is where the budget is decided.

Stage one

The parcel

Zoning, setbacks, flood zone and utility access get checked before anything is drawn.

Stage two

Pad and permit

Clearing, grading and a compacted pad, while the submittal works through whichever office issues the permit where you are building.

Stage three

Frame to finish

Shell erected and dried in, then systems, insulation and interior finish through to CO.

Those are the rules where you are building in Madison & Rappahannock Counties. Tell us what you want to build and we will draw it to them.

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Where we build around Madison & Rappahannock Counties

Madison County and the rural land around it. The buildable acreage for a project this size usually sits outside the city limits, which is frequently what changes who issues your permit.

The Madison & Rappahannock Counties service area, including the rural acreage outside the built-up edge, which is where the parcels big enough for a build like this usually sit. The map marks the territory we build in. It is not a branch location, and there is no office at this pin.

Keep reading

The questions that usually come next once you know what Madison & Rappahannock Counties allows.

Barndominium Cost Guide

Sourced per-square-foot ranges by tier and by size, with a calculator built on the same figures.

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Is It Legal in Virginia?

Classification, zoning, the HOA gate, and why "nonresidential farm building" does not cover a home.

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How Long Does It Take?

Census build-duration data, and what actually sets the permit clock where you are building.

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Nearby areas we build in

Others we cover nearby. One may be a county, another an independent city that belongs to no county at all, and another a town inside a county — so the office that issues the permit, the fees it charges, the zoning and the design criteria each locality publishes can all differ from one card to the next.

Culpeper County

Orange County

Albemarle County

Building in Madison & Rappahannock Counties: common questions

7 questions we get asked most often about building in Madison & Rappahannock Counties. If yours is not on the list, ask it directly.

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I have found two acres in Rappahannock County. Can I build a house on it?

Not on the acreage alone. Two acres is the minimum lot size in Rappahannock's agricultural district, but the row above it on the same chart caps density at one dwelling unit per twenty-five acres, and Section 170-22 says that cap shall not be exceeded. The county's own guidance memorandum works the sum against the parent parcel as it stood on 5 December 1986, counting the dwellings already on it, and where a division would exceed the cap the county requires a covenant on one of the new lots disallowing any dwelling. So a perfectly lawful two-acre parcel can exist with a recorded restriction that bars a house forever. If the lot was legally recorded before the ordinance took effect and complied at the time, Section 170-23 lifts the minimum area, frontage and width requirements for a permitted use, which is what rescues most older parcels. The two things to establish before you buy are the district and the title, and the zoning administrator at (540) 675-5343 is the person who answers the first.

Which design numbers does my engineer use in Madison County, and in Rappahannock?

Madison County publishes its own: 110 mph ultimate wind speed, 30 psf ground snow load, an 18-inch frost line, seismic design category B, severe weathering, moderate to severe termite probability, an ice barrier required, a 10 degree winter design temperature and a presumptive soil bearing capacity of 2000 psf unless a site-specific test says otherwise. Madison also requires those criteria and the code designed to be printed on the drawings, so they are not optional. Rappahannock County publishes no filled-in table anywhere on its site, and its permit application leaves the code editions blank for the applicant. On a Rappahannock project the figures are settled with the Building Official at (540) 675-5340 before the drawings are finished. Do not carry Madison's numbers across the county line and do not take any of them off a national wind or snow map.

Will I need a soils test before I can pour footings?

In Madison County, quite possibly. The Building Official's shrink-swell policy has the county check every site against a GIS layer with three tiers. In a green area, or within 500 feet of one, the footing must be at least 24 inches below grade. In an orange or red area, or within 500 feet of either, a site-specific soils test is required, and if it comes back moderate or high the foundation has to be designed by a Virginia registered design professional. You can skip the test by simply assuming expansive soil and having the foundation engineered. The policy applies to accessory structures and additions as well as houses, and exempts only decks, gazebos and small sheds. Rappahannock County has no equivalent policy, and the soil data explains why: the national survey maps no acreage there in the high shrink-swell bands. Both counties do carry a large moderate band, so a wide slab still deserves a look at the mapping.

Can I put the shop up first and live in it while I finish the house?

Not as of right in either county. Rappahannock County's accessory use section says no accessory structure may be occupied or used unless the principal structure it is accessory to is occupied or used, and separately bars using a travel trailer or camper for living or sleeping on a residential lot. If you put a kitchen in an accessory building there, it stops being a guest space and becomes an accessory dwelling unit needing a special exception from the Board at 1,200 dollars. Madison County has a temporary housing article that allows an RV during construction of a new dwelling, but on its own terms it applies where an existing dwelling and the proposed new one are on the same lot, which is not the raw-land case, and it runs on a temporary zoning permit of generally twelve months. A barndominium where the living space is inside the main structure sidesteps the whole question, because that building is simply a dwelling.

The town of Washington issues its own zoning permits. Does it issue my building permit too?

No. Virginia Code Section 36-105 lets a town under 3,500 people elect to administer the Building Code, and says that where it does not, the county administers it for the town. The town of Washington, which is in Rappahannock County and is a different place entirely from Washington County in south-west Virginia, publishes a directory with a mayor, treasurer, town manager, attorney and a contract zoning administrator, and no building official, so the county Building Office issues the permit. The town of Madison is the same. Madison County went further and wrote the line into its own code: its Building Department enforces the construction and rehabilitation parts of the statewide code countywide, with only the property maintenance provisions stopping at the town limit. What each town does keep is its own zoning ordinance and its own board of zoning appeals, and in Washington's case an architectural review board with historic district design guidelines over the whole core.

Neither county is under the Chesapeake Bay Preservation Act, so there is no stream buffer to worry about?

That inference fails in Rappahannock. The county wrote its own Stream Protection Overlay District in 2008: a riparian buffer of at least 100 feet on each side of perennial streams and adjacent wetlands, widened to 125 feet on banks sloping 15 to 25 percent and 150 feet where the slope exceeds 25 percent, with trees above six inches protected and no vegetation removal that disturbs the soil. Building inside it needs a mitigation plan approved by the zoning administrator, and only where the buffer would otherwise cost the parcel its only building site. Read the applicability with the width, though: the district chart marks the overlay for the residential, village, commercial and industrial districts and leaves the Conservation and Agricultural districts blank, and the trigger is a subdivision of three lots or more or commercial work disturbing 10,000 square feet. Madison County has no stream overlay at all. Two adjoining counties, opposite answers, which is why the question has to be asked per county.

How much land can I actually divide off a large tract here?

The two counties limit it by opposite mechanisms and the answers differ on the same size of tract. Rappahannock caps the number of dwellings, at one per twenty-five acres in both the Agricultural and Conservation districts, measured against the parent parcel as it stood in December 1986, with floodplain, quarries, large water bodies and ground over 25 percent counted at only thirty percent. A lot created by subdivision cannot be split again without a special exception. Madison caps the rate instead: no A-1 parcel may be divided into more than four lots, including the residue, in any ten-year period, no lot created that way may be split again for ten years, and a boundary line adjustment bars another for a year, with three acres required for each dwelling. Madison's Conservation district, which covers the high, steep ground above 800 feet, asks ten acres per dwelling. Family divisions are treated separately in both counties.

Building in Madison & Rappahannock Counties?

Start with the plan. Tell us what you want to build and we will draw it, then confirm which office issues the permit for your parcel, what it will let you put there, and what wind load it has to meet. That conversation costs nothing.

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