DEBUILDA
CHAPTER 01 · INTRODUCTION

The intelligence behind exceptional construction.

Describe what you are building. See what it costs, which figures are certain, and exactly where each one came from.

OR SEE AN EXAMPLENo account required
A modern white villa at dusk, its interior and entrance lit warmly, framed by mature trees and a paved approach.
ESTIMATE · GENERATED FROM THE DESCRIPTION ABOVE

Nine packages. One defensible total.

RUNNING TOTAL · USD
NO.PACKAGEQTYAMOUNTPROVENANCE
01Site preparation and excavation1.00 lot$184,200VERIFIED
02Foundations, reinforced raft9,100 sf$412,800VERIFIED
03Structural frame and slabs8,400 sf$968,400VERIFIED
04Limestone facade, honed4,200 sf$742,000ASSUMED
05Glazing, structural silicone2,180 sf$596,300VERIFIED
06Roofing and waterproofing5,600 sf$288,900VERIFIED
07Pool and water features1.00 lot$496,000ASSUMED
08MEP and house automation8,400 sf$834,500ASSUMED
09Interior finishes, base spec8,400 sf$1,124,000VERIFIED

Three packages are marked assumed. Nobody has checked them yet, so the estimate says so rather than rounding them into confidence.

See how a figure is verified
A white rendered modern house photographed square on in flat daylight against a clear sky, palms to one side.

A number is only as good as the person willing to defend it.

THE METHOD

Three movements, one continuous record.

Nothing is re-keyed between them. A quantity established during planning is the same quantity a supplier quotes against, carrying the same history.

01

Plan

Start from a costed residence or your own drawings. Quantities are extracted, not transcribed.

02

Estimate

Every line is priced against a dated source and stamped with whoever confirmed it.

03

Source

Suppliers bid against your quantities, and an accepted quote writes itself back.

CHAPTER 02 · TEMPLATES

Begin from a residence that has already been costed.

Each template carries a complete bill of quantities beneath it. Change the facade material and the number moves the same afternoon, not the next revision.

Browse the catalog
A low white coastal pavilion with a deep pergola overhang, standing in dune grass above the sea.
01COASTAL

Coastal contemporary

8,400 SF · PALM BEACH, FL

Open volumes, deep overhangs, and an envelope specified for salt exposure.

A mid century desert residence with folded rooflines and a stone base, below an arid mountain ridge.
02DESERT

Desert modern

6,900 SF · PARADISE VALLEY, AZ

Mass masonry and shaded courtyards, with a thermal strategy that drives the MEP package.

A stone and glass hillside house at blue hour, its interiors glowing warm above a sloping garden.
03HILLSIDE

Hillside glass

11,200 SF · LOS ALTOS HILLS, CA

Cantilevered floors with the cost carried by groundworks, every line visible.

A white lakeside house and its timber deck mirrored in still water, dense conifers behind.
04LAKESIDE

Lakeside pavilion

5,600 SF · LAKE GENEVA, WI

A low horizontal plan on a shallow raft, the simplest bill in the catalog.

A warm adobe wall in low sun, protruding roof beams casting a hard shadow line above a recessed window.
05COURTYARD

Courtyard estate

14,800 SF · SANTA FE, NM

Eleven packages across four wings, priced against a delivered project.

CHAPTER 03 · ESTIMATE

A price you can defend in the room.

Every figure carries its source, its date, and the name of whoever signed it. The three figures left unresolved in your estimate were not hidden — they are marked, because nobody had checked them yet.

VERIFIED

A named person checked this figure against a dated source. It is safe to commit against.

ASSUMED

Generated and never checked. Shown clearly, so it is deliberately hard to mistake for certain.

STALE

Was verified, but the source has aged past its own validity window. It needs looking at again.

THE THREE UNVERIFIED PACKAGESREV 07 · 30 AUG
Limestone facade, honed$742,000 · quarry rate, unconfirmed
ASSUMED
Pool and water features$496,000 · allowance, no drawings
ASSUMED
MEP and house automation$834,500 · benchmark rate applied
ASSUMED

None of the three has a named checker. Until one does, the figure stays marked.

CHAPTER 04 · SOURCE

The line becomes a quote without being retyped.

Suppliers respond against the quantity you established, so a bid can be compared to the estimate rather than reconciled with it.

FROM THE ESTIMATELimestone facade, honed4,200 SQ FT · 60MM · FRENCH BEAUMANIERE
A pale limestone surface photographed close, showing fine pitting and a faint diagonal vein.
Marbrerie du SudCARRARA, IT · VERIFIED SUPPLIER
14 wks$728,400BEST RATE
Atlantic Stone GroupSAVANNAH, GA · VERIFIED SUPPLIER
9 wks$766,900FASTEST
Beaumont MasonryAUSTIN, TX · VERIFIED SUPPLIER
11 wks$781,250IN RANGE

Accepting a quote writes the rate back into the estimate and marks the line verified against that supplier, on that date.

DEBUILDA AI

It answers with the line, not an opinion.

Ask anything about your project and the copilot cites the packages it read. If the evidence is thin, it says so rather than rounding the answer into confidence.

COPILOT
Why is the facade the second-largest package?

Because the specification calls for 60mm honed limestone across 4,200 sq ft, and the rate carries a hand-set allowance rather than a panel system.

The stone rate is assumed — no supplier has confirmed the quarry lead time.A 40mm section on the north elevation would reduce the package materially, with no change to the street facade.
READ · PACKAGE 04READ · SPEC §2.43 SUPPLIER RATES
THE PRODUCT

This is the working surface, not a rendering of one.

Density where the work happens, restraint everywhere else. Every quantity in view can be traced to the source it came from.

PALM BEACH RESIDENCE · REV 07
EXPORTCOMPAREVERIFY
DESCRIPTIONQTYUNITRATESTATUS
Limestone facade, honed 60 mm4,200sf176.67ASSUMED
Structural glazing, low-iron2,180sf273.53VERIFIED
Reinforced raft, 600 mm9,100sf45.36VERIFIED
Cast stone coping, cut to size1,140lf88.20STALE
Rift-sawn white oak joinery2,900sf62.75VERIFIED
Infinity pool shell, 60 ft1.00lot496,000ASSUMED
Automation, whole house8,400sf99.35ASSUMED
Total, nine packages$5,647,100
BY INVITATION

Build with certainty.

We are onboarding a limited number of residential projects in the United States. Tell us what you are building and we will respond within two working days.