Newsroom

Hidden costs and opportunities: Persch Consult by Accumin Whitepaper

Housing on the Coast 2026

Tinsa by Accumin México obtains ISO 14001 certification and strengthens its environmental commitment

Inisghts & Publications

Troostwijk Index Q4 2026

Construction and business inventory costs continued to rise in the fourth quarter of 2026.

Highlights:

- The **Troostwijk Index** reached **142.6 points for business buildings and offices, 139.1 points for residential construction and 141.2 points for business inventory**, reflecting continued cost inflation across all categories.
- On a year-on-year basis, **business inventory recorded the strongest growth (+6.6%)**, followed by **business buildings and offices (+4.7%)** and **residential construction (+4.4%)**, highlighting persistent inflationary pressures throughout the sector.
- **Construction costs** increased by **1.3% quarter-on-quarter for business buildings and offices** and **0.7% for residential construction**, driven by ongoing labour shortages, wage inflation and limited contractor capacity.
- **Building material prices** generally trended upwards. **Steel, cement, glass and paint** recorded price increases, while **bitumen, sand and plastic products** saw the strongest rises. Bricks remained broadly stable.
- **Business inventory costs** rose by **1.1% during the quarter**, supported by higher labour costs, continued shortages in the labour market, rising technology and machinery component costs, and sustained pressure on raw material prices.
- **Geopolitical tensions, trade measures and supply chain risks** continue to influence commodity and energy markets. Troostwijk expects inflationary pressures to persist into 2027, with energy prices remaining volatile, metal prices continuing to rise and wage growth remaining elevated.
- This maintains the cautiously inflationary outlook presented in previous quarters, with cost increases expected to continue across construction and business inventory throughout 2027.

Consult the complete report [here](https://www.troostwijk.nl/nieuws/troostwijk-index-4e-kwartaal-2026/).


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Corporate Updates

**Tinsa by Accumin México** has obtained the **ISO 14001:2015** certification, the international reference standard for environmental management systems. 

This milestone reinforces the robustness and reliability of on-geo by Accumin in meeting the most demanding standards for environmental protection at global scale. 

Our implementation of a responsible management model contributes to consolidating the trust of our clients and collaborators through certified sustainable management systems. 


The state of energy efficiency 2026 report

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Developed by **Accumin’s Department of Studies & Research**, the **State of energy efficiency 2026 in Spain report** provides a statistical analysis of the energy performance across the residential housing market and identifies the scale of transformation required to improve efficiency. 

Key highlights include: 

- **94.2% of the housing stock is estimated to be energy inefficient**, underlining the magnitude of the transition challenge. 
- **Energy renovations can reduce energy consumption** by up to 75% in most single-family homes and by up to 50% in multi-family buildings. 
- **Renovation of the existing housing stock** remains an **essential element** to achieve decarbonisation objectives, given the structural gap between the existent stock and new-build housing. 

The report finds that the current pace of energy-efficient renovation and improvement activity is unlikely to be sufficient to significantly transform the residential sector by 2030 and meet the expected goals. 

Understanding the current state of the residential market and where the main challenges and opportunities lie is critical to identify renovation potential and support informed decision-making throughout the transition towards an energy-efficient housing sector. 



Read the full report

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For many credit institutions, the determination of the mortgage lending value appears to be a well-managed mandatory process; in reality, however, it is often a hidden burden in the mortgage business. 

**Christian Schuhmann MRICS, Managing Director at Persch Consult by Accumin**, has developed a report that includes a profound examination of what the challenges are and why optimising these areas is important.

This study addresses the four possible target architectures for banks, evaluates them and highlights the urgent need for action..

Key takeaways

- Valuation can be used as the key lever in the mortgage business.
- It is not possible to make an assessment simply by looking at internal FTE capacity or external supplier prices.
- Regulatory safety and quality must be firmly embedded as system characteristics.
- Standardisation, governance, scalability and automatization can improve efficiency while maintaining quality and required compliance.

Download the full whitepaper

Complete the form to download the Persch Consult by Accumin Whitepaper.

Download

Theme Purple

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Spain’s coastal residential market continues to show strong drive in 2026, supported by limited housing supply and sustained tourism activity. The market remains heavily influenced by the second-home sector, which continues shaping prices, development and therefore, affordability across the main coastal destinations. 

Most notable findings: 
- **Coastal residential prices** accelerated by **13.5% year-on-year**, placing the average value at 2,223€/m2
- Housing affordability continues to deteriorate, with the **average purchase effort reaching 40%** of household disposable income, compared with 34% nationally
- New-build activity was potentiated, with **residential permits increasing 21.7% year-on-year**, although supply remains insufficient
- The holiday housing segment continues to strengthen its influence
- **International demand remains a key market driver**

The study highlights how supply shortages, demand based on tourism and the growing weight of second-home market are shaping the Spanish coastal housing landscape. These trends continue to reinforce regional disparities while presenting challenges for housing accessibility and long-term market balance. 

Check the complete report below.


Chile Incoin report 2Q 2026

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The latest Incoin report studies Chile’s metropolitan region, where it records a recovery in the housing market for the second quarter of 2026. A total of **4,863 homes were sold**, representing a **1.7% increase** compared to the previous quarter, although activity remains 4.5% below Q2 2025 levels. The recovery has been driven primarily by improved financing conditions and strong demand for homes with immediate delivery. 

Demand continues to concentrate in the most accessible market segments. Homes valued below **4,000 UF accounted for nearly 65% of sales**, while the mortgage-rate subsidy has helped accelerate purchasing decisions and reduce available inventory. 

Looking ahead, the report suggests that sustained financing conditions and continued absorption of existing stock could support the launch of new residential projects across the metropolitan region. 

Read the full report [here](https://www.accumin.com/assets/uploads/Incoin_Report_2_Q_RM_2026_EN_524f78b5ac.pdf).

Troostwijk Roux by Accumin integrates de Crombrugghe & Partners

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**De Crombrugghe & Partners by Accumin** will be integrated into **Troostwijk Roux by Accumin** in 2026.

Both two well-established firms in their respective markets, have joined forces to operate under a single name and strengthen their combined presence in Belgium.

This step forms part of Accumin’s ongoing global strategy and supports our **One Accumin, One Purpose** approach, enabling the combination of expertise and services together under an integrated, single connected structure. 

De Crombrugghe & Partners by Accumin brings decades of experience in damage assessment and risk inspection in the Belgian market. It brings an opportunity to merge market and local expertise with additional valuation and insurance capabilities.  

For clients, daily operations and services remain unchanged. The existing assignments will continue without interruption, and clients retain their usual points of contact while benefiting from access to a broader network of specialists across the Accumin Group. 

At **Accumin**, we are pleased to celebrate this landmark and look forward to continuing support clients through a broader arrange of expertise and services. 


Troostwijk Index Q3 2026

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Construction and business inventory costs increased again in the third quarter of 2026, with business inventory recording the strongest quarterly growth.

Highlights:

- The **Troostwijk Index** reached **140.8 points for business buildings and offices, 138.1 points for residential construction and 139.6 points for business inventory**, maintaining the upward trend across all categories.
- **Business inventory costs** recorded the strongest growth, increasing **5.9% year-on-year**, compared to **+4.1%** for business buildings and offices, and **+4.4%** for residential construction.
- **Construction costs** remain above the average of recent years due to persistent wage pressure, a tight labour market and higher rates charged by contractors.
- **Building material** prices generally moved upwards during the quarter, with particularly strong increases in bitumen, sand and plastic products.
- **Production costs** for business inventory accelerated due to the combined impact of collective labour agreement wage increases, labour market constraints, higher component costs and rising commodity prices.
- **Commodity market volatility, geopolitical tensions and international trade developments** continued to create uncertainty around energy, raw material and supply chain costs.

Consult the complete report [here](https://www.troostwijk.nl/nieuws/troostwijk-index-3e-kwartaal-2026/).

Strategy days: "One Accumin, One Purpose"

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News & Events

**"One Accumin, One Purpose"** defined this year’s global leadership team gathering, bringing more than 65 of our leaders from across Accumin’s ecosystem to strengthen relationships and align the company’s strategic direction.

Over three days, the sessions provided space to review priorities and shape the decisions that will guide next steps. The objective was to reinforce a clear global direction to continue operating as a single, integrated force.

The meeting allowed different teams to share their achievements alongside initiatives with potential for global rollout. These contributions reflected scalable approaches and supported the continued evolution of the business.

Beyond the formal agenda, the program included team-building and cultural activities that encouraged closer connections across teams. It’s these shared moments that foster genuine mutual trust and make cross border collaboration feel more natural. 


on-geo days 2026

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**on-geo by Accumin** hosted on-geo days 2026 in Erfurt, their annual industry event held for the first time at the **Steigerwald Stadium**, enabling the accommodation of more than 500 professionals and making it the largest edition to date.

**on-geo by Accumin**, one of our group’s companies in Germany, positions **on-geo days** as a recurring industry forum for knowledge exchange and professional collaboration within the sector. The event combines expert-led presentations with networking formats, fostering not only meaningful business relationships, but also personal connections within industry’s community.

This edition marked a milestone in both scale and content, with AI at the centre of real estate valuation’s discussions. Sessions explored how automation can reduce routine tasks and free up time for rigorous professional analysis and judgement.

**Mathias Knabe, Managing Director at on-geo by Accumin**, positioned AI as a complement to professional expertise, underlining that the real value remains rooted in professional data interpretation and judgement.

As a fun fact, tickets sold out in just **20 hours**, demonstrating the strong attention the event attracts across the sector every year.



IMIE: Residential Report Q2 2026

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In the second quarter of the year, the Spanish housing market continues to experience strong upward pressure on prices. 

- The **average price** of completed housing (new and resale) recorded year-on-year growth of **+15.2%**.
- Current **price levels** remain 33% below the 2007 peak and 35% above the post-crisis low, **confirming the continuation of the expansionary cycle**.
- Price increases remain widespread, with particularly growth in **Valencian Community, Castilla la Mancha, Canary Islands** and **Cantabria**, as well as in the provinces of Toledo and Alicante.
- **Supply** continues to **fall short** of demand, with **housing transactions moderately declining** but mortgage activity remaining relatively stable.
- Affordability continues to deteriorate, with the **purchase effort** reaching **35.7%** of household disposable income, exceeding 50% in San Sebastián, Madrid, Barcelona, Málaga and Balearic Islands.

Consult the complete report here: https://www.tinsa.es/en/reports/imie-local-markets/quarterly/ 


HR World Summit 2026: Human sustainability

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**Teresa Coehlo, our Global Chief People & Sustainability Officer**, attended the **HR World Summit 2026** in Porto. This international event brought together HR leaders to address one key question shaping today’s work environments: what does it mean to lead with soul in the age of AI and constant change?

Discussions during the sessions were centred on the **structural tension** caused by the **rapid acceleration of AI compared to the pace at which organisations and employees can adapt**, a reality already felt across markets. While productivity gains are clear, experts in HR highlighted **emerging risks affecting the human dimension**, including skill erosion and reliance on cognitive offloading.

In a context of ongoing transformation and uncertainty, organisations face the challenge of how to keep moving faster without exhausting their people. As **Teresa Coelho** noted, “The companies that will stand out will not only be fast adopters, but they will also be the ones capable of accelerating technology without losing humanity along the way.”

The general perspective underlined the need of organisations to place human sustainability at the core of their approach to technological acceleration. 


SIMA 2026: Housing affordability and the role of data in the residential sector

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SIMA, one of the leading international forums for the living and real estate sector, was held in Madrid this 2026 addressing the structural challenges shaping the residential market. During the sessions, two main pillars were discussed: housing affordability and the impact of technology on real estate activity. 

**Cristina Arias, Director of our Research team**, analysed the residential markets of Spain and Portugal together with other experts, highlighting how housing prices continue to rise above inflation and wage growth, which intensifies pressure in major cities and tourist areas. 

In addition, a debate on technology and AI took place, during which **Manuel Cacho, Director of Banking & Advisory in Accumin Intelligence**, presented his outlook on productivity gains thanks to the use of predictive models and how personalized insights based in data analysis enable efficient analytical decisions. 

The event provided an opportunity to reflect on the main challenges facing the residential market and to identify key levers able to potentiate it. 


Accumin renews its EcoVadis Bronze Medal

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Accumin has renewed its **EcoVadis Bronze Medal**, the leading international standard for assessing **ESG** (Environmental, Social and Governance) **performance**. The Bronze level recognises companies ranked within the top 35% worldwide. 

In 2026, Accumin achieved a score of **70 out of 100**, up from the 61 points obtained in 2025, positioning the company in the **top 20%** of the highest-rated companies worldwide and in the **top 13%** within the real estate sector.

This EcoVadis recognition confirms the maturity of Accumin’s **responsible management model** and reflects **positive progress across all four pillars** assessed. **Ethics** stands out specially, with Accumin ranking in the top 4% of real estate services’ companies globally.

Key results of the 2026 EcoVadis assessment:
- **Ethics:** 82 points (top 4%)
- **Labour practices and human rights:** 72 points (top 10%)
- **Sustainable procurement:** 55 points (increase of 13 points)
- **Environment:** 70 points (increase of 9 points)

“The EcoVadis medal reinforces our strategy to integrate ESG criteria into our day-to-day activities and our commitment to **leading with example in a market with strong potential for sustainable development,**” says **Teresa Coelho, Global Head of People & Sustainability Officer at Accumin**.

CDMX Real Estate market report Q1 2026

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The Mexico City residential market entered 2026 with continued pressure on available inventory. 

Most notable trends include:

- **Constrained housing supply** remains a defining market characteristic as new product launches continue to fall short and available inventory declined by **18%** year-on-year.
- **Steady price appreciation** continues across the metropolitan area, with average asking prices reaching **MXN 53,591/m²**, reflecting annual growth of **8.0%**.
- The **North corridor** consolidated its position as the market's leading submarket, accounting for **39.3%** of **total sales activity** during the first quarter.
- **Emerging locations** continued to gain traction, with **Cuauhtémoc, Zumpango, Tizayuca** and **Tecámac** ranking among the areas with the highest number of properties sold.
- **Differentiated submarket performance** persisted, with the **Eastern** and **Central corridors** posting some of the strongest annual growth rates, supported by improving accessibility and sustained demand.
- **Location remains a key purchase driver**, with connectivity, access to employment centres and urban infrastructure as decisive elements across the metropolitan market.

Opportunities remain strongest in submarkets capable of combining accessibility, housing availability and long-term development potential. 

Consult the complete analysis here: https://www.tinsamexico.mx/notas-de-coyuntura/


Accumin reports measurable ESG progress in 2025 

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In 2025, Accumin continued to strengthen its Environmental, Social and Governance (ESG) strategy delivering tangible results.

Key milestones include a **reduction of 27%** in Scope 1 and 2 **emissions**, which reinforce our commitment to responsible energy management. Further consolidation of company’s governance and leadership model was achieved by increasing the representation of **women in senior management** to **43%**. Also, Accumin has expanded its services focused on environmental compliance, risk prevention and value creation, supporting clients and business partners in their sustainability transition. Together, these advancements reflect Accumin’s role and contribution in the market.

However, this is not a point of arrival. For 2026, Accumin has set clear priorities focused on scale and impact. We aim to achieve an additional 15% and 10% reduction in Scope 1 and 2 emissions respectively, while reaching 45% representation of women in senior management positions.

Accumin’s ESG progress is the result of coordinated efforts across our 14 countries. Through continuous and shared commitment, we translate strategic vision into measurable contributions, building a sustainable and responsible business model.