Synchronous TDR Credits (Turkienicz, 2026)

Summary

"Synchronous TDR Credits," by Benamy Turkienicz, is a Lincoln Institute of Land Policy Working Paper (June 2026). It fills a genuine gap in the wiki's land value capture instrument coverage: no existing page documents Transferable Development Rights (TDR) — a mechanism that lets landowners in development-restricted zones (e.g. for conservation or heritage) sell their unused development potential to owners in zones where denser building is permitted, effectively separating the right to build from the specific parcel and letting the market price it.

The Gramado Case

The paper examines Gramado, Brazil's New Centrality Masterplan, which combines land readjustment and land value capture through the synchronous implementation of TDR alongside Payment for Ecosystem Services (PES) — described as the first known integration of these two instruments. In a 90-hectare masterplan area, the city raised the permitted Floor Area Ratio from 0.7 to 2.8 under 2022 municipal regulations, creating substantial new development value. The paper's specific methodological contribution is the "Equivalent Biodiversity Area" (EBA) concept, which links ecosystem-loss compensation directly to the pricing of the resulting development-rights increase — so that landowners who sell TDR credits for conservation land simultaneously fund a calculated, biodiversity-based ecosystem-service payment rather than the two mechanisms operating independently.

Relation to the Georgist Case

TDR is a land-value-capture instrument in the same family as air rights sales and land pooling: it makes explicit that development potential — the "right to build" beyond baseline zoning — has a separable, tradable value created by public zoning decisions rather than the landowner's own effort, which is squarely within the wiki's unearned increment framing. The Gramado case is a useful concrete example of how these instruments can be layered: value capture from a zoning-driven windfall (the FAR increase) is used to directly fund compensation for the environmental cost of the development that windfall enables.

Nuances and Limits

• A single Brazilian municipal case study. Gramado's specific masterplan design and legal context may not transfer directly to other jurisdictions' TDR programs.
• A design/implementation study, not an outcome evaluation. The paper documents how the synchronous TDR/PES mechanism was designed and implemented; it does not report longer-term results on revenue raised, conservation outcomes, or market uptake.
• Full landing-page content read directly (B-claim). The paper's working-paper page (not paywalled) was read directly for its methodology and headline findings; the full 27-page paper's detailed valuation methodology was not independently extracted.

Bears On

• Concept: Land Value Capture — fills a genuine gap: the wiki's first dedicated coverage of Transferable Development Rights as an LVC instrument.
• Concept: Air Rights — a closely related mechanism (separable, tradable development value), differing in that TDR moves rights between parcels rather than selling them outright above a single site.
• Concept: Unearned Increment — TDR makes explicit that zoning-created development potential is a windfall separable from the underlying land, capturable and tradable independent of any effort by the landowner.

See Also

• Land Value Capture
• Air Rights
• Land Pooling
• Unearned Increment

Sources

1. Benamy Turkienicz (2026), "Synchronous TDR Credits," Lincoln Institute of Land Policy Working Paper, 27 pp., published June 2026. lincolninst.edu — fetched and read directly 2026-08-30 (not paywalled) — used for the Gramado, Brazil masterplan case, the TDR/PES synchronous-implementation design, the Floor Area Ratio 0.7→2.8 increase, and the "Equivalent Biodiversity Area" valuation concept (B-claim; working-paper landing page and summary read, full 27-page methodology not independently extracted).