/THÝAAR/


Thýra (door, threshold, beginning) + RAAR (Reusable Architectural Assemblies Research)

THYAAR is a not-for-profit design research initiative focusing on developing reusable architectural assemblies. Four benchmarks define the work: 1. Faster to build than conventional light frame systems. 2. As easy to disassemble as to assemble. 3. As economical as traditional light-frame systems, with better structural and functional performance. 4. Adaptable to a wide range of designs and layouts. What follows are periodic updates recording this ongoing endeavor. THYAAR is directed by Pouya Khadem and it’s based in Houston, TX.

MARCH 2026  |  RESEARCH  |  NOTE D

Economics of Essential Seed


The economic viability of Essential Seed is supported by a combination of increased construction efficiency, a more adaptable building lifecycle, and alignment with supportive carbon policies. Although CLT—and mass timber more broadly—typically carries higher upfront material costs, Essential Seed offsets these premiums through faster construction timelines, reduced labor requirements, enhanced post-construction flexibility, and long-term material liquidity and recyclability.

Essential Seed’s rapid speed-to-market enables earlier revenue generation and faster occupancy. Developers and investors can leverage shorter and phased construction schedules to improve efficiency of their pro formas, stepped capital deployment, lower loan interests, and mitigate risk by avoiding long-term market speculation. Other systemic savings could further offset costs, such as a 50% reduction in on-site labor and a 60% lighter structural weight, which lowers foundation expenses.

Over the long term, economic performance is strengthened by the concept’s capacity to be recycled: reversible assemblies allow CLT panels to retain residual value to support future reuse or resale. This circular approach aligns with evolving carbon policies and green financing incentives that reward lower embodied carbon and improved sustainability outcomes compared to conventional construction methods.

Essential Seed provides developers and investors with new pathways for value and revenue creation while advancing a more resilient, flexible, and sustainable model of building construction.


BIBLIOGRAPHY

  1. HFO Investment Real Estate. "Mass Timber Development: Balancing Profit and Purpose." HFO (blog), February 18, 2026. https://www.hfore.com/mass-timber-development-and-the-new-mindset/.
  2. JLG Architects. "Mass Timber: Benefits & Challenges." JLG Architects (blog), 2025. https://jlgarchitects.com/mass-timber-benefits-challenges/.
  3. National Association of Home Builders. "Nearly 60% of U.S. Households Unable to Afford a $300K Home." NAHB Blog, March 21, 2025. https://www.nahb.org/blog/2025/03/priced-out-affordability-pyramid.
  4. Think Wood. "How Mass Timber Can Cut Your Construction Costs." Think Wood (blog), 2022. https://www.thinkwood.com/blog/how-mass-timber-can-cut-construction-costs.
  5. Gordian. Q1 2025 Construction Cost Report, cited in Maxx Builders, "Texas Commercial Construction Cost Per Square Foot: Complete 2026 Guide." Maxx Builders, 2026. https://www.maxxbuilders.com/texas-commercial-construction-cost-2025-2026/
  6. Multifamily.loans. "Hard Costs vs. Soft Costs for Multifamily Construction." Multifamily.loans (blog). Accessed July 6, 2026. https://www.multifamily.loans/apartment-finance-blog/hard-vs-soft-construction-costs-for-multifamily-developers/
  7. Kendall, Chris, Suzanne Robinson, and David Robb. Understanding the Cost of Mass Timber: Design, Drivers, and Case Studies. WoodWorks | Wood Products Council webinar presentation, September 3, 2025. https://www.woodworks.org/wp-content/uploads/presentation_slides_Kendall_Robinson_Robb_Understanding_Cost_Mass_Timber_09.2025.pdf
  8. Harrison, Ben. "Mass Timber for Multifamily Housing: Sustainable, Fast, and Beautiful." SCB (Solomon Cordwell Buenz), June 30, 2025. https://scb.com/2025/06/30/mass-timber-for-multifamily-housing-sustainable-fast-and-beautiful/
  9. Olifant LLC and Lambert Sustainability. Three Regions Explore Mass Timber. Complete study. Accessed July 6, 2026. https://www.olifant.org/three-regions
  10. WoodWorks Wood Products Council. Mass Timber in Affordable Multi-Family Housing. WoodWorks, 2026. https://www.woodworks.org/resources/mass-timber-in-affordable-multi-family-housing/
  11. CRE Daily. "Multifamily Cap Rates Vary Widely Across US Markets." CRE Daily, January 2026. https://www.credaily.com/briefs/multifamily-cap-rates-vary-widely-across-us-markets/
  12. Kyriakidis, Alexandros, et al. "A Practical Application of Real Options Valuation to Urban Development Projects—The Case of the Deferral Option." Urban Science 10, no. 3 (2026): 134. https://www.mdpi.com/2413-8851/10/3/134
  13. Appelbaum, Binyamin. "One City Might Have Just Cracked the Housing Crisis." New York Times, June 15, 2026. https://www.nytimes.com/2026/06/15/opinion/vancouver-housing-crisis-development.html
  14. Hughes, Chris. "This Is Why America Is Short Four Million Homes." New York Times, April 8, 2026. https://www.nytimes.com/2026/04/08/opinion/housing-loans-banks-congress.html





Fig. D1. The graph illustrates the financial trajectory of a typical five-story mixed-use development in an urban neighborhood in a major Texas city. Each floor plan has 14,400 square feet area, resulting in a total gross building area of 72,000 square feet. The ground floor is allocated to leasable retail space, while floors two-five consist of market-rate residential apartments. Structural system is the variable by scenario as described below. All scenarios share a common two-year pre-development phase, shown at the beginning of each graph.

1. Conventional Light Wood Frame: Total development cost is approximately $19M, derived from a blended hard cost of $215/SF (residential floors: $175–240/SF; retail: $200–260/SF) applied to 72,000 SF, plus a 25% soft cost load covering architecture & engineering, contingency, construction interest, and fees. The timeline reflects a roughly two-year construction window followed by a two-year stabilization period, reaching 90% occupancy at Year 6. Based on program location and the typology, stabilized NOI is estimated at approximately $1M per year.  The projected exit sale price reaches $22.8M at Year 7.5, a 20% premium over total cost.

2. Typical CLT Frame: CLT framing currently carries a 30–35% premium over conventional framing costs. Since framing represents roughly 20% of total costs, this translates to an approximate 8% increase in overall project cost, bringing the total to around $20.5M. However, CLT's accelerated construction pace could compresses the build schedule to approximately one year. Combined with a two-year stabilization period, the project reaches 90% occupancy at Year 5. A 12% rent premium is expected, reflecting CLT's market positioning as a premium material and the appeal of exposed wood interiors, which lifts stabilized NOI to approximately $1.12M per year. The projected exit sale price reaches $24.6M at Year 6.5, a 20% premium over total cost. Realizing this earlier exit depends on the developer's ability to capture CLT's construction time advantage.

3. CLT Frame with Essential Seed Strategy: Total project cost is comparable to typical CLT framing, but the Essential Seed approach introduces a phased delivery strategy that changes the financial profile. Phase 1 (40% of the development: the retail floor and one residential floor) completes within the first three months and immediately begins generating revenue. After nine months of operation, Phase 2 (30% of the development) adds 1.5 residential floors over the following three months while Phase 1 remains fully operational, a key structural advantage of the Essential Seed model. This revenue-generating construction cycle continues until the final phase completes at Year 4.25. Revenue generated during the phased construction period totals an estimated $1M. With phasing-related cost additions estimated at approximately $0.5M, the net effect is a project cost roughly $0.5M below typical CLT construction. An additional benefit of phased delivery is a compressed post-completion stabilization period because occupancy and lease-up are distributed across phases, the trajectory to full stabilization is steeper once the final phase delivers. The potential for disassembly and material recyclability reduces investor risk, supporting a lower cap rate. The projected exit sale price reaches $25.5M at Year 7.5, a 27% premium over total cost. Finally, the phased structure provides a built-in market hedge: if conditions shift drastically after any phase, the developer retains the option to pause, operate the completed portion, and defer the next phase, preserving capital and optionality without abandoning the project, as illustrated in the graph.

*The calculations and information presented above are derived from publicly available data and should not be considered definitive.