What is an Individual Renovation Roadmap?

The iSFP (individueller Sanierungsfahrplan) is a standardised consulting report for your residential building. It documents the current energy condition, defines an energy target state and lays out a stepwise renovation path – with sequencing, funding notes and realistic cost estimates.

The content and format are mandatorily defined by the BAFA directive and the dena layout specifications. The report typically comprises 30 to 60 pages and remains valid for the funding bonus for 15 years.

Process

Four phases from initial consultation to funding application

Clearly structured, transparently scheduled.

1. Initial Consultation

Free of charge and non-binding. Clarification of your needs, overview of the funding landscape, fee framework.

2. On-Site Visit

Survey of the building envelope, photo documentation, heating data, review of building documents. Duration: 2–4 hours.

3. Renovation Roadmap

Energy balancing per DIN V 18599, modelling of measures, report creation in iSFP standard, presentation meeting.

4. Funding Application Support

Application to BAFA by the energy consultant, document review, payout monitoring. Payout in 6–10 weeks.

Request Initial Consultation

Funding 2026

Up to 80 percent subsidy from BAFA

As of 2026; please verify the current BAFA directive before application.

BAFA Energy Consulting for Residential Buildings (EBW)

Subsidy of 50 percent of eligible consulting costs. Maximum 650 EUR for one- and two-family houses, maximum 850 EUR for multi-family houses with three or more residential units.

Application by the energy consultant via the BAFA portal. Payout typically within 6 to 10 weeks after report acceptance.

iSFP Bonus +5 percent on BEG-EM

Anyone implementing an individual measure recommended in the renovation roadmap via the Federal Funding for Efficient Buildings (BEG-EM) receives an additional 5 percentage points subsidy bonus on the measure. Applicable for 15 years after iSFP creation.

Example: WDVS facade insulation 40,000 EUR – with iSFP bonus 2,000 EUR additional funding. The consulting contribution often amortises with the first funded step.

Fees

Fixed price by building size

Transparently calculated. BAFA covers up to 80 percent of the consulting fee – you only bear the remaining net contribution.

What the fee depends on

The fee depends on building type and number of residential units – from single-family houses and semi-detached houses to multi-family buildings. You receive a binding fixed-price offer after the free initial consultation.

BAFA covers up to 50 percent of the eligible consulting fee – up to a maximum subsidy of 650 EUR for single- and two-family houses and 850 EUR for multi-family houses with three or more residential units (per BAFA, as of 2026).

What the fee includes

On-site survey including envelope measurement and photo documentation. Energy balancing per DIN V 18599. Modelling of measures with variants for envelope, building services and renewable energies. Written renovation roadmap in iSFP standard format. Presentation meeting. Full BAFA application support through to payout.

Not included: detailed component planning, tendering and construction supervision of the renovation – these are agreed separately under HOAI.

Deliverables

What you have in hand after the consultation

Three concrete documents plus oral handover.

Renovation Roadmap PDF

30 to 60 pages in the standardised iSFP format. Building assessment, renovation stages, economics, funding matrix.

Funding Application Support

Full submission with BAFA. Document verification, payout tracking through to receipt in your account.

Implementation Checklist

Concrete sequencing of renovation steps, schedule proposal, BEG-EM application deadlines, notes on tendering and award.

Frequent Questions

What we are often asked

Do I get BAFA funding for renovation without an iSFP?

Yes. The Federal Funding for Efficient Buildings (BEG-EM) for individual measures (insulation, windows, heating etc.) is available independently of an iSFP. With an iSFP, however, an additional 5 percentage points bonus applies to each recommended measure.

How long from initial consultation to funding payout?

Realistically 11 to 18 weeks. On-site visit in the first 1–3 weeks, report creation 3–5 weeks, BAFA payout 6–10 weeks after report acceptance.

Do I have to implement the iSFP to receive funding?

No. The BAFA funding for the consultation is not tied to implementation. The 5-percentage-points iSFP bonus only applies if you actually implement a recommended measure.

Who is allowed to create an iSFP?

Only energy efficiency experts listed in the nationwide dena register. In my model I handle the on-site data collection and quality control as Architect AKNW; the formal report creation is performed in cooperation with listed energy consultant partners.

Does an iSFP make sense for a condominium?

An iSFP is created for the entire building. For condominiums the order must be placed by the owners' association (WEG). An energy consultation for the individual unit (e.g. heating or window replacement within the unit) is possible, but not an iSFP in the strict sense.

Which documents do I need for the initial consultation?

Ideally: energy certificate, building documentation extract (floor plans, sections), the last two heating cost statements, heating maintenance protocols. If documents are missing, this is no obstacle – we discuss the scope in the initial consultation.

Independent Energy Consulting and iSFP in Düsseldorf