Villa Vita

Cua Residence – Veneer Plaster Estimate

The house has about 12,000–13,500 sq ft of interior wall surface. Veneer plaster on those walls would cost roughly $42,000–$68,000 installed.

Room sizes and ceiling heights were read from plan sheet A3 (JHK25013, 4,219 sq ft heated, one story). Rooms without a labeled ceiling height (baths, halls, kitchen, pantry, laundry, mud room) are assumed to be 10'. This is a budget figure from a review set, not a bid.

What veneer plaster is

Veneer plaster is a modern plaster system. Installers hang blueboard, a gypsum panel with a face that bonds to plaster, then trowel one or two thin coats (about 1/16" to 1/8") over the whole surface instead of taping and sanding seams.

The result is a seamless wall that is much harder and more dent-resistant than drywall. It sets in hours and makes no sanding dust, but it needs a skilled plasterer and costs more than drywall.

Wall area by zone

As a sanity check, wall area usually runs about 3 to 3.2 times floor area at these ceiling heights. On 4,219 sq ft heated, that gives 12,600–13,500 sq ft, consistent with the takeoff.

The total excludes the garage (normally fire-rated drywall) and the prefab sauna. The optional vestibule would add about 300 sq ft.

Cost for veneer plaster on the walls

The $3.50–$5.00 range comes from a source that puts veneer about 20–50% above standard drywall (JourneymanHQ). Other guides quote $5–$10 per sq ft (Fixr), so local quotes could land higher.

For comparison, standard drywall on the same area at about $2–$3 per sq ft would cost roughly $25,000–$38,000. Veneer adds about $17,000–$30,000 over drywall at the low-to-mid rates.

Ceilings (optional add-on)

Plastering the ceilings adds about 4,300 sq ft, including the extra surface in the barrel and groin vaults. Veneer jobs often include ceilings so walls and ceilings match.

At the same rates, ceilings cost roughly $15,000–$22,000. That brings the whole house to about $57,000–$90,000.

What could change the number

• Curved work: two barrel vaults, a groin-vaulted foyer, segmented arches, arch niches and stone arches in the gallery. Plaster handles curves well, but plasterers charge extra for them, so expect the high end of the range.
• Behind cabinets: these walls usually get plain board, not plaster, which trims a few hundred square feet.
• Bids: ask bidders to quote from the final construction set with a full takeoff, and to price walls and ceilings separately.
• Availability: veneer plasterers are less common in the Southeast than in New England, so get bids early.

Sources

• JourneymanHQ – Pros and Cons of Veneer Plaster
• Fixr – Plaster cost guide
• Angi – Plaster vs. drywall

Natural Insulation Options & Estimate

For a natural, low-toxicity house, the realistic choices are recycled denim batts and sheep's wool. Denim is easier to buy and costs less. Cellulose (recycled paper) is the cheapest natural-fiber choice for an unfinished attic floor, and hemp is the hardest to source.

As a rough budget, natural insulation for both buildings could run about $15,000–$23,000 with denim walls and cellulose attics, and about $42,000–$72,000 if everything is done in wool. These are planning numbers built on assumed wall and attic areas, not bids. Rite Way Insulation has recommended denim batts and sent an itemized quote on Oct 20.

The natural options

Mineral wool and fiberglass are not listed because they are not natural. Fiberglass appears below only as a price baseline.

Cost comparison

These figures come from retailer listings and articles of different ages, so treat them as ballpark. Labor for batt installation is assumed at about $0.60–$1.00 per sq ft.

Estimate for the residence and the casita

Quantities are assumptions until Rite Way's takeoff: attic floor about 4,300 sq ft for the residence (the ceiling area from the plaster takeoff) and about 2,300 sq ft for the casita (its slab area); exterior walls about 2,600–3,200 sq ft for the residence and 1,800–2,300 sq ft for the casita, after doors and windows. Attics are unfinished and hold the HVAC, so the floor is insulated, not the roof.

The sheep's wool attic line is the weakest number. No reliable price was found for thick wool batts or wool loose fill, so it is scaled from wall pricing. Ask Rite Way and a wool supplier for real quotes before treating it as a budget.

Whole-building totals (walls plus attic)

Adding the two buildings, the lowest natural option comes to about $15,000–$23,000, and the all-wool option to about $42,000–$72,000.

What could change the number

• The HVAC in the attic: equipment and ducts in an unconditioned attic lose efficiency. Ask Rite Way and your HVAC contractor whether to insulate the roof deck instead of the attic floor, because denim and wool batts are not roof-deck products.
• Cathedral and vaulted areas: the barrel and groin vaults and any sloped ceilings need a batt or dense-pack solution, not loose fill.
• Code R-values: Georgia's climate zone generally calls for about R-38 in attics and R-13 to R-20 in walls. Confirm with your designer and the building department.
• Air sealing: natural batts do not seal air leaks, so budget for sealing gaps and penetrations separately.
• Phasing: you asked for separate quotes for the residence and the casita so they can be built in phases.

Practical approach for this house

• Exterior walls: recycled denim batts. Rite Way recommends them and they are easy to source.
• Attic floors: cellulose loose fill is the cheapest natural choice for an unfinished attic. Use two layers of denim batts if you want an all-cotton house.
• Sheep's wool: keep it as a premium upgrade for bedrooms or a limited area if you want its performance, and price it before committing.
• Next step: compare Rite Way's itemized quote with these numbers once its takeoff is in HQ.

Sources

• UltraTouch denim insulation R-13, retail listing
• UltraTouch denim insulation R-19, retail listing
• UltraTouch spec sheet (2010)
• SARE report: Virginia wool insulation, Havelock pricing
• Azure: Havelock wool insulation spec sheet
• Havelock Wool: insulating homes with sheep wool
• Green Building Advisor: hemp insulation plant opens in Idaho
• Hempitecture products
• Offsite Builder: is hemp in your future
• Buildipedia: natural fiber insulation materials
• Fine Homebuilding: blown insulation for attics, fiberglass vs cellulose
• Fine Homebuilding: buyer's guide to blown-in insulation

Natural Stone & Wood Flooring Options & Estimate

With natural stone everywhere except the bedrooms, the residence has roughly 3,200–3,400 sq ft of stone and 800–1,000 sq ft of wood. The casita has roughly 700 sq ft of stone and 380–450 sq ft of wood. Installed, that comes to about $70,000–$134,000 for both buildings with budget stones such as travertine or slate, and up to about $259,000 with premium marble or limestone.

Because both buildings sit on slabs, two choices need to be made before the slabs are poured: how far the slab surface should drop where stone goes versus wood, and whether to put radiant heat in the slab. These are planning numbers, not bids.

Ceramic tile in place of stone would cut the total to roughly $39,000–$89,000 for both buildings (see the ceramic section below).

Floor areas used

Heated areas come from the square-footage tables on plan sheet A3 of each set. Bedroom sizes are read from the floor plans: the master bedroom is roughly 19 by 18.5 ft, Bedroom #2 is about 16 by 17 ft and Bedroom #3 about 16 by 14 ft. In the casita, Bedroom #1 is about 15 by 13.5 ft and the Bunk Room about 15 by 12 ft. Closets inside the bedrooms are counted as wood. The garage (790 sq ft) and the covered porches are not included.

Stone and wood options

Natural stone has no emissions of its own. For a healthy house, choose a low-odor penetrating sealer, and ask the installer for low-VOC thinset and non-epoxy grout.

Installed cost per square foot

Published installed prices for stone are very wide: travertine lists at about $17–$35 per sq ft installed, and limestone at about $6–$28 depending on the source. The tiers above reflect the more detailed sources and extra setting labor for a stone-heavy house. Engineered white oak runs about $8–$13 per sq ft installed, wide plank about $12–$18, plus an assumed $1–$3 for moisture protection on a slab.

Estimate for the residence and the casita

Of each total, the wood is only about $8,000–$21,000 for the residence and $3,800–$9,450 for the casita. The stone choice decides the budget.

Not included: stone on the covered porches (about 1,316 sq ft on the residence and 1,007 sq ft on the casita, which would add roughly $19,700–$46,100 and $15,100–$35,200 at $15–$35 per sq ft). The plans note that porches and terraces are dropped for pavers, so treat those as a separate line.

Ceramic tile in more detail

• Cost: ceramic tile is far cheaper than natural stone, about $7–$14 per sq ft installed. Porcelain is about $12–$19 because the tile is denser and harder to cut and set. Material alone runs about $1–$5 per sq ft for ceramic and $3–$10 for porcelain.
• Care: glazed tile does not need sealing and shrugs off stains and acids, unlike travertine, limestone and marble. Cement grout should be sealed. Epoxy grout needs no sealing but has stronger odors while it cures.
• Healthy house: ceramic is fired clay, so it has no emissions of its own. Ask for low-VOC thinset and grout, and keep adhesives and sealers to a minimum.
• Look: it is not natural stone. Stone-look porcelain is very convincing but repeats a pattern; terracotta and cotto give the warm old-world look but need sealing.
• On a slab: tile is thinner than stone set in mortar, so the slab drop between tile and wood areas is smaller. It still needs a crack-isolation membrane and a flat slab, and large tiles need the flattest slab.
• Comfort: ceramic is also a cold floor, so the same radiant heat decision applies.

Estimate if ceramic tile replaces stone

For comparison, budget natural stone with engineered wood bedrooms is about $70,000–$134,000 for both buildings, so ceramic saves roughly $31,000–$45,000. Terracotta or Saltillo is priced between ceramic and premium stone because of its wide cost range, so get a quote if that look interests you.

What a slab means for these floors

• Tell the architect which rooms get stone and which get wood before the pour. The plans say all interior finishes are to be decided by the owner. Stone set in mortar and wood on adhesive finish at different heights, so the slab may need to be dropped in one area to make the two floors meet flush.
• Crack protection under stone. Slabs crack as they cure. A crack-isolation membrane over the whole floor is the usual protection for stone, and it should be planned with the tile setter.
• Moisture test before wood. Every slab on grade carries moisture. Engineered wood needs a moisture-tested slab, a moisture barrier and adhesive approved by the manufacturer.
• Radiant heat. Stone floors feel cold. In-slab radiant heating has to be planned before the pour. Thin electric mats under the tile can be added later at a lower cost.
• Stiffness and flatness. Stone needs a flat slab and little movement, so ask the slab contractors about flatness and cure time before tile goes down.

Practical approach for this house

• Stone: honed travertine or limestone throughout, with slate or flagstone in the mud room, laundry and entries where it takes the most wear. Price at least two tiers before choosing.
• Bedrooms: engineered white oak, glued down or floated per the manufacturer, over a tested slab.
• Budget option: floor-rated ceramic or porcelain in the kitchen, baths, laundry and mud room, with stone kept for the main living areas. That mix could save a large part of the stone budget.
• Next steps: pick the stone and wood areas for JHK, ask GV Construction and the other slab bidders about flatness and finish-floor drops, and decide on radiant heat before the slab is poured.

Sources

• HomeAdvisor: cost to install natural stone flooring
• HomeGuide: travertine tile cost
• Block Renovation: comparing natural stone flooring types
• CostHelper: stone floor cost
• HomeAdvisor: oak flooring cost
• JLC: gluing wood flooring to concrete
• Hardwood Floors magazine: engineered flooring on concrete
• Fine Homebuilding: tiling over concrete cracks
• Pro Builder: how to prevent tile cracks
• HomeAdvisor: ceramic or porcelain tile installation cost
• Inch Calculator: cost to install a tile floor, 2026
• Elit Tile: tile flooring installation cost in 2026
• Hunker: Mexican Saltillo tile guide
• Clay Imports: cotto vs Saltillo

Whole-House Water Filtration Options & Estimate

Both buildings will run on a private well, so the right treatment depends on what the water test shows. A whole-house system for a well usually costs about $2,500–$5,000 for a basic sediment, carbon and UV setup, and about $5,000–$10,000 for a full train that also removes iron and manganese and corrects acidic water. A reverse osmosis tap for drinking water adds $300–$1,000.

Georgia well water commonly has iron, manganese and low pH, and sometimes radon or bacteria, so do not buy equipment until the new well has been tested. These are planning numbers, not bids.

Step one: test the well

University of Georgia Extension reports that iron and manganese are the most common problems in Georgia private wells, and that low pH is common. Low pH can corrode plumbing and raise copper and lead. Iron and manganese usually are not a health hazard but stain fixtures and taste bad. UGA recommends testing bacteria annually and the broader panel every few years. The county Extension office has sample bottles and helps read results.

Treatment options

Whole-house reverse osmosis exists but costs about $4,800–$8,000 and wastes water, so it is not the usual choice for a well.

Cost by component

Multi-stage well treatment trains list at about $4,000–$4,500 for equipment and can reach $5,000–$10,000 installed with plumbing work. Whole-house costs overall range from about $850 to $6,000 for ordinary city-water systems, and well systems run at the high end.

Estimate for the residence and the casita

One system placed where the water enters, before the line splits, can serve both buildings. The well quote from Greene's includes a pressure tank and a submersible pump that delivers about 10 gpm, which sets the size the treatment must handle. The trench and line from the well to the house is not in that quote.

Yearly upkeep (my estimate): about $200–$600 for sediment and carbon cartridges, $100–$300 for salt if you choose a softener, and $100–$200 for a UV lamp.

What could change the number

• The test results. Clean water may need only a sediment filter and UV. Iron, manganese, low pH, hardness or radon each add equipment.
• Where the equipment goes. Treatment is installed after the pressure tank. The well driller or plumber needs to plan a dry, heated spot with a floor drain for backwash and power for the UV and control heads. The plans show a pool equipment room and a mechanical area; ask the architect which space will hold it.
• Backwash and brine. Iron filters and softeners flush water out. Confirm with Scott Allen that the septic system can take it, or discharge it elsewhere.
• Plumbing size. Treatment sized for about 10 gpm needs full-size piping and bypass valves, which the plumber (David Holman) should know before rough-in.
• Sequence. The well goes in first (about a three-month lead time per the driller). Test it, then choose the equipment, and give the plumber the layout before rough-in.

Practical approach for this house

• After the well is drilled, send samples to a certified lab for the expanded panel, bacteria, arsenic and radon.
• Plan on a sediment filter and UV at minimum, then add an iron and manganese filter, acid neutralizer and softener or salt-free conditioner only as the test shows.
• Put a reverse osmosis system at the kitchen sink in each building for drinking and cooking water.
• Ask Greene's Water Wells, David Holman and a local water treatment dealer to price the same test-based package so you can compare.

Sources

• UGA CAES: well water questions answered
• UGA CAES: most Georgia well water is safe
• Georgia Tech repository: water quality in Georgia's private drinking water wells
• Wake County: available well water tests and fees
• Mid-Atlantic Water: whole-house water filter system cost
• Water Filter Guru: well water filtration system cost
• SoftPro: iron filter sizing guide
• SoftPro: whole-house softener and filter cost installed

Healthy Interior Paint Options & Estimate

For a healthy, breathable finish over veneer plaster, silicate mineral paint and clay paint are the strongest options. Zero-VOC acrylic is the budget choice, and limewash is the most artisanal and the most expensive.

For the residence’s roughly 12,000 sq ft of interior walls, painted walls should cost about $13,000–$29,000 installed, depending on the paint. Limewash could run $28,000–$50,000.

The main healthy paint types

Material cost comparison

No published US price for Keim was found, so the silicate range is approximate. Get a quote from a US Keim distributor.

Estimate for the residence walls

Based on the 12,000 sq ft net wall area from the veneer plaster takeoff; walls only, not ceilings or trim. Labor is an estimate per square foot of wall surface.

Labor rates assumed: $0.75–$1.25/sq ft for acrylic and clay, $1.00–$1.50 for silicate, $1.50–$3.00 for brushed lime. Cross-check: guides put interior painting at $2–$6 per square foot of floor area, which for 4,219 sq ft heated is about $8,400–$25,000.

Practical approach for this house

• Silicate mineral paint in the kitchen, baths, mud room, laundry and halls, where walls get wiped and bumped.
• Clay or silicate paint in the bedrooms and living spaces.
• Limewash on one or two feature walls, such as the Social room or the foyer under the groin vault.

Skipping the acrylic primer under mineral paint keeps the whole wall breathable, which fits the natural insulation already chosen.

Paint sources

• Keim Optil technical data sheet
• Keim Ecosil-ME product page
• ASBP – Keim Optil
• My Chemical-Free House – BioShield Clay Paint review
• Earthborn Claypaint data sheet
• The Good Trade – Eco-friendly paints
• Facade Colorizer – Lime wash guide 2026
• Lime paint technical sheet
• Signal SCV – Painting cost guide 2026