The Corrected Ledger

Their buildings. Their numbers. Recomputed.

A working catalogue of award-winning architecture whose published life cycle assessments have been recomputed under full-boundary accounting. Three liabilities that the disclosures excluded are added back: soil organic carbon efflux, end-of-life methane, and foregone sequestration.

Every figure on every building page traces back to the building's own public LCA, EBD, EPD, or sustainability report. Every recomputation is reproducible. Every assumption is named. Each page carries a downloadable Reproduction Sheet — the audit working papers — so any third party can verify the math or dispute a specific input.

The voice is auditor's voice. We use only their verbs: disclosed, classified, reported, excluded, omitted. We never use concealed, hid, lied. The configuration is described; intent is not characterised. The numbers do the work.

How to read this catalogue

Three columns of finding, one column of evidence

For each building we ask four questions, in this order:

What was disclosed, and where can the public read it?
What boundary statement governed that disclosure?
Which DRL liabilities — soil organic carbon efflux, end-of-life methane, foregone sequestration — fall outside that boundary?
If we add them back using published emission factors, what does the corrected number look like?

The answer to question four is not an accusation. It is an arithmetic consequence of the boundary choice in question two. If the boundary changes, the answer changes. We make the boundary visible.

What counts as published

A building qualifies for full recomputation if it has either a public whole-building life cycle assessment (EN 15978, ISO 14040/44, or equivalent), a public Environmental Building Declaration, or a sustainability report with quantified material volumes and biogenic-carbon assertions. A building with only marketing-grade "low embodied carbon" claims and no underlying figures is logged here as UNDISCLOSED — that is itself a finding.

Timber buildings

Mass timber — six entries

Building	Location / Year	Disclosed source	Delta under DRL	Status
Brock Commons Tallwood House	Vancouver, BC 2017 · UBC	Athena EBD (EN 15978) Bowick 2018	+6,956 tCO₂e	Published
T3 Minneapolis	Minneapolis, MN 2016 · Hines	WoodWorks Wood Calculator (no EN 15978 LCA published)	+11,548 tCO₂e	Published
Mjøstårnet	Brumunddal, Norway 2019 · Moelven	Scattered press disclosures; no consolidated public LCA	recomputation pending	Review in progress
Ascent MKE	Milwaukee, WI 2022 · USDA-funded	Korb + Associates summary; full LCA not in public domain	recomputation pending	Review in progress
Stadthaus Murray Grove	London, UK 2009 · Waugh Thistleton	Waugh Thistleton case study; partial LCA in academic papers	recomputation pending	Review in progress
International House Sydney	Sydney, AU 2017 · Lendlease	Lendlease sustainability disclosures; full LCA partially public	recomputation pending	Review in progress

Concrete buildings

Reinforced concrete — three entries

Building	Location / Year	Disclosed source	Delta under DRL	Status
One World Trade Center	New York, NY 2014 · SOM	Marketing-grade green claims; no whole-building LCA published	—	No public LCA
Salesforce Tower	San Francisco, CA 2018 · Pelli Clarke Pelli	LEED Platinum scorecard; no full LCA in public domain	recomputation pending	Review in progress
The Shard	London, UK 2012 · RPBW	Sellar Group sustainability brief; academic LCA studies exist	recomputation pending	Review in progress

Steel buildings

Structural steel — two entries

Building	Location / Year	Disclosed source	Delta under DRL	Status
30 Hudson Yards	New York, NY 2019 · KPF	LEED Gold; recycled-content claims; no whole-building LCA published	—	No public LCA
Shanghai Tower	Shanghai, CN 2015 · Gensler	LEED Platinum scorecard; partial LCA in academic literature	recomputation pending	Review in progress

A note on the steel and concrete entries

What we found while looking

The first finding from the concrete and steel side of the catalogue is not a number. It is an absence. The most awarded steel and concrete towers of the past fifteen years — One World Trade Center, the 30 Hudson Yards tower, several others in the same class — were reviewed for a published whole-building LCA. None was found.

What was found were marketing-grade disclosures: a recycled-content percentage on the steel, a slag-cement and fly-ash percentage on the concrete, a LEED rating with its scorecard. These quantities describe inputs to the building. They do not constitute a life cycle assessment in the EN 15978 or ISO 14040 sense.

This catalogue accordingly records two outcomes side by side. The timber buildings are recomputed against the boundary their published LCAs use; the steel and concrete buildings are recorded as UNDISCLOSED where no whole-building LCA exists at all. Both findings are about the same thing: the disclosure boundary the building chose to publish against.

Methodology

How a recomputation works on this site

Each populated building page contains the same five blocks:

The building — identification, project team, awards, link to the public LCA or sustainability disclosure.
The disclosed figures — the building's own numbers, in their own units, with citations to where the public can read them.
The boundary statement — verbatim, from the building's LCA, with page reference where available.
The DRL recomputation — the three liabilities added back, each with a sourced emission factor.
A mini-calculator — the same calculation engine, with the building's inputs pre-loaded, that the reader can change to test how sensitive the answer is to any assumption.

Below the five blocks is the Reproduction Sheet: a downloadable PDF and CSV showing every input, every factor, every citation, and every step of the arithmetic. This is the document a hostile general counsel would read. If any input is wrong, the sheet is what would have to be redrawn.

Comments, corrections, and disputes are welcomed. The feedback channel for this catalogue is the same as for the site as a whole: every submission is logged, archived with timestamp, and reviewed.