Repositioning office assets: creating value, not repainting it
Technical assessment across 7 work packages before any business plan
Repainting an office asset from the 1990s-2000s does not move its capitalisation rate: only an aligned repositioning, with divisibility from 250 sqm and a service offering priced into the rent, closes the discount against the 2025 standard. The differential plays out on three measurable levers: energy performance aligned with the trajectory of reducing final energy consumption by at least 50% by 2040 compared to 2010, as required by the Tertiary Energy Decree (Eco Energie Tertiaire); the divisibility of floor plates from 250 sqm; and the associated service offering. Since 2006, Kytom has supported asset managers and value-add property companies on operations from 3,000 to 40,000 sqm, with 11 offices in France and Spain and more than 1,200 projects delivered, around a single validation criterion: the consistency between the marketing promise and the projected operating account.
No repositioning holds up without an audit conducted package by package. Our technical team delivers a prioritised report to the asset manager covering 7 critical areas.
- Envelope: facades, waterproofing, thermal bridges, external joinery.
- Technical packages: HVAC, AHU, BMS, high and low voltage systems, sanitary plumbing.
- ERP (public-access building) and IGH (high-rise) compliance where applicable, with a reading of the fire safety regulations.
- Accessibility for persons with reduced mobility within the meaning of the orders of the Construction Code.
- Asbestos removal and lead according to regulatory thresholds.
- Fire safety: fire safety systems, smoke extraction, compartmentation.
- Acoustic performance of the floor plates measured against ambient noise levels and reverberation in an office floor plate.
Each area receives a capex estimate in euros per square metre, a target use scenario and an estimated impact on the market rental value. The trade-off between full repositioning, heavy renovation, disposal or conversion becomes clear when reading the summary table. Without this foundation, the business plan assumptions slip into approximation and the NPV can drift significantly between acquisition and delivery.
Kytom’s position, contrary to common practice. Value-add orthodoxy often treats the technical audit as a post-acquisition step, conducted after signing the SPA on the basis of sometimes superficial vendor DD. Our reading differs: the most severe overruns concern almost exclusively assets where the 7-package audit was conducted after the firm commitment. The audit must enter the price negotiation phase, not validate it after the fact.
When the 7-package audit is not enough. On an asset of less than 3,000 sqm net lettable area or with a structural asbestos rate above 25% of the floors, the repositioning logic ceases to be relevant: the capex/target value ratio tips beyond 1.8 and the disposal or demolition-reconstruction scenario takes over. The 7-package diagnostic then becomes an exit arbitrage tool, not a programming prerequisite.
The « Method » order of 10 April 2020 and energy programming from day zero
The Tertiary Energy Decree (Eco Energie Tertiaire) imposes a firm trajectory on buildings of more than 1,000 sqm: a reduction of 40% by 2030, 50% by 2040, 60% by 2050 compared to a reference set between 2010 and 2019, with a declaration obligation in force since 2022. The declared timetable is no longer negotiable and weighs directly on assets rated D, E, F under the energy performance certificate (DPE).
For the value-add asset manager, energy performance is not an ESG cost but a balance-sheet asset. An F-rated DPE maintained on an asset held for 7 years exposes it to a significant exit discount on a comparable surface and location basis. Conversely, moving from E to B secures the rental premium and compresses the capitalisation rate by 40 to 80 bps depending on the segment. Day-zero energy programming protects the exit NPV, not the fund’s ESG rating.
The energy objective enters the programming from the study phase, never as an end-of-works fix. The technical trade-offs concern:
- Replacement of obsolete AHUs and energy recovery from extracted air.
- Installation of a category A or B BMS according to the standard applicable to building automation and technical management systems.
- Reworking of the envelope where the thermal audit justifies it.
- Trade-off between heat pump, geothermal with vertical probes or connection to an urban heat network.
The target DPE determines the achievable rental premium and the exit capitalisation rate. In the prime segment, several certification standards cover the environment, operation and well-being axes.
A limit to be aware of. A higher-level certification target is not justified on an asset whose expected holding period is less than 5 years with a long-term single tenant already secured: the additional cost of processing and monitoring weighs 35 to 60 EUR/sqm net lettable area without a rental premium recoverable in the signed lease. On this profile, aiming for an intermediate level or simple regulatory alignment with a thermal audit is enough.
Floor plates divisible from 250 sqm and services priced into the rent
The rental standard has shifted. A large occupier no longer accepts 9 sqm per workstation without associated services, and the average observed among CAC 40 tenants is falling to around 11 to 13 sqm net lettable area per employee. The applicable standard sets a minimum of 10 sqm per employee in an individual office, 11 sqm in a shared office and 15 sqm in an open-plan space. A successful repositioning delivers floor plates divisible from 250 sqm, with a clear ratio between individual workstations, meeting rooms, acoustic booths and informal spaces.
As an indication, the main investment items and their achievable rental impact fall within the following orders of magnitude, drawn from our experience on multi-service operations delivered in France:
| Component | Indicative cost (EUR/sqm net lettable area) | Rent supplement (EUR/sqm/year) |
|---|---|---|
| Inter-company restaurant | 350 to 600 | 15 to 30 |
| Equipped gym | 150 to 250 | 8 to 15 |
| Concierge service and reworked lobby | 80 to 180 | 10 to 20 |
| Walkable landscaped terraces | 400 to 700 | 25 to 45 |
These orders of magnitude are supported by feedback from market brokers and the leases actually signed on our recent operations. Kytom prices each item in capex and in achievable rent supplement, by target tenant type: head office, office production floor plate, multi-tenant. The marketing promise only holds if the Excel sheet confirms it to the second decimal, and if the service grid translates into real market rental value, validated by the brokers of the relevant market.
A deliberate countercurrent on divisibility. The market is today pushing towards maximum divisibility, sometimes down to 150 sqm. This threshold destroys value: the multiplication of sanitary facilities, dedicated HVAC blocks and signage drives up capex without a corresponding marginal rent. Our reference threshold remains 250 sqm per lot, except for a flex office typology that is assumed and marketed as such.
Service contraindication. On a peripheral asset in a second-ring office zone with a market vacancy rate above 12%, the inter-company restaurant at 350-600 EUR/sqm net lettable area does not recover its capex over the holding period: the market rental value, capped by local competition, absorbs the theoretical rent supplement. On this profile, a concierge service and a reworked lobby are enough.
Frequently asked questions
What capex/acquisition value ratio justifies a repositioning rather than a disposal?
Below a capex/target value ratio of 1.2, repositioning remains value-creating over a 5- to 7-year holding period. Between 1.2 and 1.6, the trade-off depends on the achievable market rental value and the market liquidity at exit. Above 1.8, the disposal or demolition-reconstruction scenario generally takes over, based on our experience with value-add operations.
How can the energy consumption reduction trajectory applicable to the office stock be integrated into the business plan from acquisition?
The thermal audit conducted before signing the SPA gives the delta in kWhEF/sqm/year between the current state and the 2030 target (-40%). This delta translates into energy capex priced item by item: AHU, BMS, envelope, heat production. The regulatory timetable applicable to the office stock then determines the sequencing of works over the holding period and the exit NPV.
Why 250 sqm as a divisibility threshold rather than 150 sqm?
The 150 sqm threshold generates a significant additional cost in dedicated sanitary facilities, separate HVAC blocks and multiplied signage, without a compensatory marginal rent. The 250 sqm threshold covers most of the demand expressed by SME and mid-cap tenants while preserving the operating margin. Exception: a flex office assumed and marketed as such.
Which environmental certification should be targeted according to the holding profile?
Long holding (more than 7 years) on the prime segment: environmental certification at Excellent or Very Good level, supplemented by an occupant well-being certification if the target is a head office. Holding of 5 to 7 years, multi-tenant: a Very Good level is enough. Short holding (less than 5 years) with a secured tenant: office regulatory alignment and thermal audit, without additional certification. The additional cost of processing an Excellent-level certification reaches 35 to 60 EUR/sqm net lettable area, non-recoverable outside a prime lease.
What is the impact of a move from DPE E to B on the exit capitalisation rate?
The compression of the exit capitalisation rate depends on the segment and location: a move from DPE E to B can represent a significant gap depending on market conditions at the time of arbitrage. Conversely, maintaining an F-rated DPE over a 7-year holding period exposes it to an exit discount on a comparable surface and location basis. The target DPE is therefore treated as a line in the business plan, not as an ESG variable.
