Maryland Construction Estimating Services

Maryland has one building code. That sounds simple. It isn’t.

The state adopts the model codes as the Maryland Building Performance Standards, and the 2021 editions of the IBC, IRC, IECC and IEBC took effect statewide on May 29, 2023. Every county and city then had until May 29, 2024 to put them into local law. So the edition is the same from Baltimore to Bethesda. The amendments aren’t. Each jurisdiction adopts the state code with its own changes, so Montgomery County, Baltimore City and Anne Arundel County are all “on the 2021 code” and still don’t inspect the same way. Your estimate has to price the local version, not the state one.

The energy code rides along with it. Maryland enforces the 2021 IECC statewide. If you’re used to pricing a shell under an older code across the line in Pennsylvania or Virginia, you’re going to be light on insulation, glazing and air sealing here.

Then the tax. Maryland charges 6% sales tax, and a contractor is the consumer of everything he installs. You pay the tax when you buy the lumber, the drywall and the fixtures, and it sits inside your material costs. Labor to install, erect or repair real property isn’t taxed. But fabrication labor is, whether you bill it separately or lump it in, so a millwork or steel package carries tax on the shop time. And there’s one trap on public work: materials going into a building owned by a government aren’t exempt. You pay tax on them even though the owner wouldn’t. The nonprofit and church exemption is real; the government one isn’t.

Under all of that is the water. Maryland is Chesapeake Bay country, and the state runs a Critical Area program for land along the Bay and the coastal bays. Waterfront work goes through a review that inland work doesn’t, and that shows up in schedule and sitework before it shows up anywhere else.

Every one of these has cost somebody real money. We see them monthly.

1. The impact tax. Montgomery County charges a development impact tax at the permit, and for the period from July 1, 2025 to June 30, 2027 the school tax alone is $30,005 per single-family detached house in an infill area and $31,301 in a turnover area. A high-rise apartment unit is $4,487 or $7,288. Transportation is on top of that, and it moves by policy area: a detached house is $9,139 near Metro and $28,553 out in the green areas. On the commercial side, office space runs from $8.30 to $26.10 per square foot of gross floor area. That’s a line item most out-of-state bidders never see until the permit desk hands it to them.

2. The prevailing wage trigger. Any state or political-subdivision construction contract of $250,000 or more with 25% or more state funding carries Maryland prevailing wage, and that includes school construction. The threshold is low enough that a modest renovation for a county agency qualifies once the state is paying a quarter of it. If you price a public job in Maryland at open-shop rates, you’re going to eat the difference.

3. The license line. Any alteration, remodel, repair or replacement of a building used as a residence needs a Maryland Home Improvement Commission license, and that includes condo units. The license comes with a Guaranty Fund assessment of $100 for a new contractor and $175 at renewal, and homeowners can recover up to $30,000 per claim from that fund. A GC coming in from a state with a single commercial license has to add this for any residential remodel, and the fee schedule went up on August 1, 2024.

4. The tax on fabricated work. Because installation labor is exempt and fabrication labor isn’t, a lot of Maryland estimates carry the 6% on the wrong side of the line. Cabinet shops, ornamental metal, custom storefront: the shop labor is taxable. Put it where it belongs before bid day, not after the audit.

We don’t ask you to take our word for it. Sixteen real Maryland estimates are on this page, four in each of the four categories we work in. $65M of construction value across 121 pages of takeoff and pricing. Open them. Read the line items. See exactly what you get before you send us a single sheet.

Commercial Buildings — ground-up retail, institutional and whole-building work.

• Yeshiva School of Greater Washington, Silver Spring – $16.8M (20902)
• EUTAW Project, Baltimore – $16.1M (21201)
• Seventh Day Adventist, Silver Spring – $5.1M (20904)
• Shoppes at North Beach – $5M (North Beach 20714)

Multi Family and Apartments — apartments, flats and multi-unit housing.

• Guilford and Rossburg Housing, College Park – $7.1M (20740)
• 700 Roeder Rd, Silver Spring – $3.9M (20910)
• Brookside Apartments, Kensington – $2.3M (20895)
• Canton Flats Project, Baltimore – $868K (21224)

Residential — custom homes, additions and whole-house remodels.

• 5107 Allan Terrace, Bethesda – $1.1M (20816)
• Glen Ross Rd Project, Silver Spring – $1M (20910)
• Mackell Lane Project, Bowie – $626K (20715)
• 1421 North Broadway, Baltimore – $192K (21213)

Tenant Buildouts — interior fit-outs in existing buildings.

• Social Security Administration, Baltimore – $2.8M (21235)
• WoB World of Beer, Annapolis – $1.2M (21401)
• Burger King Andrews AFB #6413 – $615K (Andrews AFB 20762)
• Lululemon Bethesda Row – $332K (Bethesda 20814)

Four building types. Baltimore City rowhouses to a Montgomery County school, Annapolis to the Calvert County shore. From a $192K rowhouse renovation to a $16.8M school. That range is the whole point. Most shops price one lane and call it a service.

Look at the EUTAW job. $16.1M and eighteen pages, because a whole-building renovation in downtown Baltimore is demolition, storefront, elevators and 66,000 square feet of floor leveling before a single finish goes in, and every one of those is a separate takeoff. Look at Glen Ross Road next to it: a $1M house on seventeen pages, footings called out room by room off the structural sheets. Same rigor, different building.

The Social Security Administration job is public work in a government-owned building. That means prevailing wage on the labor and full sales tax on the materials, because the government exemption doesn’t apply to a contractor. Both are in the number.

We estimate statewide. Here’s where the volume actually is.

Montgomery County. Silver Spring, Bethesda, Rockville, Gaithersburg, Kensington, Germantown and Takoma Park. The impact tax lands here on top of the permit fee, and seven of the sixteen estimates above are Montgomery County jobs. Price the policy area, not just the zip.

Baltimore City and Baltimore County. Baltimore, Towson, Canton, Fells Point, Catonsville, Parkville and Dundalk. Rowhouse renovations, flats conversions and downtown rehabs. Four of the sixteen estimates are Baltimore City jobs, from a $192K rowhouse to the $16.1M EUTAW building.

Prince George’s County. College Park, Bowie, Hyattsville, Greenbelt, Laurel and Joint Base Andrews. Federal and university-adjacent work. Three estimates on this page.

Annapolis and Anne Arundel County. Annapolis, Severna Park, Glen Burnie, Gambrills and Crofton. Waterfront means Critical Area review; the World of Beer fit-out is in downtown Annapolis.

Frederick and Washington County. Frederick, Hagerstown, Mount Airy and Urbana. Long hauls from the Beltway sub market, so durations and delivery are priced differently.

Southern Maryland and the shore. Waldorf, La Plata, North Beach, Salisbury and Ocean City. The Shoppes at North Beach is exactly this work: retail a few blocks from the Bay, priced with the sitework that a shore town demands.

Every one of those cities has its own page with local detail. Start there if you want the county-level specifics.

General contractors bidding hard-bid and negotiated work. Subs who need a takeoff that survives a scope review. Developers who want a real number before they commit capital. Architects who’d rather price a design now than explain a surprise at bid day.

Maryland had 166,400 construction jobs in June 2026, up 1.1% on the year. The work is there. If you’re a GC in Maryland turning down invitations because you can’t get numbers out fast enough, you’re going to keep leaving work on the table until somebody else does the takeoff for you. That’s what our Maryland construction estimating services are built to fix. You send the plans. We send back a priced estimate with the quantities shown, in a format you can hand straight to a client or an owner.

We’re not a lead service and we’re not a software subscription. A person does the takeoff. Another person checks it. You can call and ask why a number is what it is, and get an answer.

What you’re hiring is a cost estimator who has already priced work under your county’s amendments, your impact tax and your wage rate. Not a national square-foot average with the word Maryland written on top.

Send us your plans. We’ll tell you what it costs.