Individual renovation roadmap
Your iSFP for Berlin – step by step to your funding
The individual renovation roadmap shows you in which order to renovate your building: 50 % BAFA funding, plus a 5 percentage point bonus on the part of a package of measures above €30,000 of eligible costs in one application. By a dena-listed expert, implementation from a single source if you wish.
What is an individual renovation roadmap?
The individual renovation roadmap (iSFP) was introduced by the federal government in 2017 and is your strategic plan for energy-efficient renovation. A dena-listed energy efficiency expert analyses the condition of your building on site – insulation, windows, heating and ventilation.
The result is a clearly presented plan with prioritised, time-ordered renovation measures: you see exactly which measure makes sense when, what it costs, how much energy it saves and which funding is available. The iSFP is the basis for many funding applications and adds 5 percentage points of BEG funding for packages of measures from €30,000 of eligible costs, on the amount above that threshold.
50 %
BAFA grant towards the iSFP
+5 points
bonus for packages from €30,000
2–4 weeks
to the finished plan
Your benefits with the iSFP
More funding, a clear order of works and full planning certainty.
5 points more funding
Packages of measures from the iSFP from €30,000 of eligible costs receive 5 percentage points of additional BEG funding on the amount above, quickly several thousand euros for roof, facade and windows.
A clear order of works
You see which measure makes sense and when – no wasted investments and no steps that block later measures.
Funding eligibility secured
The iSFP is prepared by a dena-listed expert and is a prerequisite for many funding programmes – BAFA-recognised.
Increased value
A clear renovation plan and a better energy efficiency class increase the value and rentability of your property.
Independent & neutral
The recommendation is based on what is cost-effective for your building – manufacturer-neutral, with no sales interest.
Implementation from a single source
On request, Montali as a master SHK company carries out the recommended measures directly – one point of contact from the plan through to handover.
How your iSFP is created
In four steps from the first conversation to a funded renovation roadmap.
Phone call
We clarify your wishes, goals and questions about the planned renovation – free of charge and with no obligation.
On-site analysis
A dena-listed expert visits your property, analyses the building fabric and records all the relevant data.
iSFP preparation
We develop your individual renovation roadmap with prioritised measures as well as a savings and cost forecast.
Review & funding
We go through the roadmap together, prioritise the measures and apply for the right funding on your behalf.
What does an iSFP cost – and what does the state pay?
BAFA funds 50 % of the cost of preparing the individual renovation roadmap. In Berlin the price is typically €1,000 to €1,800, so your own share is €500 to €900. On top comes the iSFP bonus: 5 percentage points more BEG funding for packages of measures from €30,000 of eligible costs, calculated on the amount above. For a facade insulation of €60,000 that is an extra €1,500, more than the whole roadmap cost.
50 %
BAFA grant
+5 points
bonus for packages from €30,000
2–4 weeks
processing time
Individual renovation roadmap in Berlin: what your iSFP contains
The individual renovation roadmap is a document to BAFA standard, not a consultation with notes. You receive the energy assessment of your building, the recommended measures as packages in a technically sensible sequence, and for each step a forecast of costs and savings. Added to that is a note on which funding applies to which package. You go into the funding application with this document, not with a declaration of intent.
The structure is standardised nationwide and therefore readable by laypeople too: one page on the current state with the energy efficiency class, then a double page per measure package with component, estimated costs, energy saved and the class to be expected after implementation. The calculation is based on component build-ups, windows, roof, basement ceiling and the heating system, supplemented by your heating bills from the last three years as a plausibility check.
Not included are structural engineering, contaminant surveys and the detailed design of individual trades. The roadmap states cost ranges; it does not replace a contractor's quote. With us the binding quote for heating, ventilation or insulation only comes after the survey of that particular measure.
iSFP energy consultants in Berlin: what is examined in a Gründerzeit building
The on-site appointment usually takes two to four hours for a single-family house. In Berlin Gründerzeit buildings the old plans are frequently missing, which is why we work with on-site measurement: wall thicknesses, windows, roof structure and basement ceiling are recorded rather than calculated from assumptions. In prefabricated buildings the situation is reversed: standard-type documentation exists, but the facade and ventilation have often already been reworked once, which has to be taken into account in the assessment.
On the plant side the flow temperature is decisive. We check whether the existing radiators can carry a heat pump or whether individual heating surfaces have to be enlarged; hydraulic balancing is generally a precondition for funding. The standard heat load calculation is not part of the roadmap's mandatory scope, but we include it as soon as a heating replacement appears in the first measure package, because otherwise the sizing of the unit remains open.
Then there are Berlin's own conditions: in conservation areas and for listed buildings, additional requirements may apply to the facade; for outdoor units we clarify the installation location and noise in the courtyard; and in a homeowners' association the resolution takes time. These points appear in the roadmap with a date, not as a footnote.
Renovation roadmaps for single-family homes, two-family homes and homeowners' associations
The roadmap is always drawn up for the entire building, not for an individual apartment. For a single-family house that is straightforward: one owner, one decision, one application. For a two-family house with a let annexe, the additional point is that funding bonuses on the heating side are aimed at owner-occupiers; which part of the measures this affects, we clarify before the application.
In a homeowners' association the commission runs through the property management, and the real bottleneck is not the technology but the resolution. That is precisely what the roadmap is the right tool for: it breaks the renovation down into individually votable packages with costs and savings per step, instead of putting a single overall package to the assembly that can only be voted on as a whole. Allow several months between commission and resolution.
For listed buildings and those in conservation areas, measures on the facade often remain restricted. The roadmap then shifts the focus to what is permissible and effective: roof, top-floor ceiling, basement ceiling, windows in a heritage-appropriate design, and the building services. What is not possible under building law does not appear as a recommendation in the first place.
iSFP Berlin: when the roadmap pays off and when a consultation is enough
Two cases differ clearly. If you are planning several measures over several years, for example heating, windows and roof, the iSFP supplies the sequence and the funding bonus. If you only want to replace the heating in the short term, a targeted on-site consultation with a heat load calculation is enough in many cases. We will tell you which route is right for your building in the initial conversation, before you award the larger contract.
In Berlin the iSFP typically costs €1,000 to €1,800 and BAFA subsidises up to 50 percent; the grant is capped, and the cap depends on the building type. Against that stand 5 percentage points of additional BEG funding for packages of measures from the roadmap, since 21 July 2026 however only from €30,000 of eligible costs in one application and only on the amount above. Those who bundle roof, facade and windows usually reach the threshold; a single small measure stays below it. We calculate with you before the application what that means for your building.
The sequence remains decisive: the funding application has to be submitted before work begins, otherwise the entitlement is generally forfeited. That applies to the grant towards the roadmap itself just as much as to every measure you later implement from it.
iSFP Berlin: costs, grant and duration by building type
The effort behind a renovation roadmap depends on the size of the building and on how much documentation exists. The following ranges reflect what is usual in Berlin for residential buildings. The BAFA grant amounts to up to 50 percent of the eligible consulting costs and is capped.
| Building type | Typical price range | Typical duration |
|---|---|---|
| Single-family house, documentation available | 1,000 to 1,300 euros | 2 to 3 weeks |
| Single-family house in Gründerzeit stock, survey required | 1,300 to 1,800 euros | 3 to 4 weeks |
| Two-family house or semi-detached house | 1,200 to 1,800 euros | 3 to 4 weeks |
| Apartment building up to 6 residential units | 1,800 to 2,600 euros | 3 to 5 weeks |
| Apartment building from 7 units or listed building | 2,600 to 4,000 euros, more in individual cases | 4 to 6 weeks |
| Additional standard heat load calculation | 300 to 700 euros | within the roadmap |
Guide values for Berlin residential buildings, not fixed prices. The binding price is set after the initial conversation, in which we clarify the building type and the available documentation. Funding levels, cap amounts and application conditions change; we check the current status before you place the order.
Frequently asked questions about the renovation roadmap
The iSFP is an official advisory document prepared by a dena-listed energy efficiency expert. It shows step by step the order in which you should renovate your building for energy efficiency, what the measures cost and save – and which funding is available.
Two levels: first, BAFA covers 50 % of the cost of preparing the iSFP. Second, you receive 5 percentage points of additional BEG funding for packages of measures from the roadmap, since 21 July 2026 only from €30,000 of eligible costs in one application and only on the amount above. With insulation, windows and roof the threshold is reached quickly; a single small measure stays below it.
In Berlin the iSFP typically costs €1,000 to €1,800, and BAFA covers 50 %. Your own share is therefore usually €500 to €900, depending on the size and condition of your property. We tell you the exact amount in the free initial consultation. As soon as you implement a larger package of measures, the iSFP pays for itself through the funding bonus.
Usually 2–4 weeks, depending on the size and condition of your property. The on-site appointment usually takes place within 7 days of being commissioned.
No. The iSFP is voluntary, but it is a prerequisite for many funding programmes and the only way to receive the iSFP bonus of 5 percentage points, which applies to the amount above €30,000 of eligible costs in one application.
No. The iSFP is a planning tool – you decide yourself when to implement which measure. The funding bonus remains available over a long period, so you can plan your renovation in stages.
Yes. As a Berlin master SHK company, we carry out heating, plumbing and air conditioning work ourselves and coordinate complementary trades. This gives you a single point of contact from the renovation roadmap through funding to handover.
For the funding bonus on individual measures the roadmap can be used for several years; it is explicitly intended as a multi-year planning document. It nevertheless becomes technically outdated as soon as something substantial changes about the building or a measure has been carried out differently from the plan. Since funding conditions change regularly, we check before every new application whether the funding noted in the roadmap still matches the current status.
No. The roadmap is a recommendation with a sequence, not an obligation. You can implement individual packages, let years pass in between, or forgo them entirely. The bonus of 5 percentage points applies to every package of measures you actually implement from the plan once its eligible costs in one application exceed €30,000, and only on the amount above that. Conversely: anyone reversing the sequence risks bad investments, for example a heat pump sized before the insulation and therefore oversized afterwards.
Yes. The roadmap then refers to the entire building rather than to individual apartments, and is commissioned through the property management. Factor in that the association has to approve the measures, which takes time. That is exactly what makes the iSFP useful: it gives the assembly a sequence with a cost and savings forecast per step that can be voted on individually.
They are helpful, but not a precondition. In Gründerzeit buildings the documentation is frequently missing, in which case we record the data on site by measurement. Bring whatever exists: heating bills from the last three years, floor area figures, documentation on the heating system and evidence of earlier renovation work such as new windows or an insulated basement ceiling.
The roadmap may show own labour, but it counts only to a limited extent for funding: as a rule the material is subsidised, not your own working time, and proper execution has to be confirmed. For measures on the heating system and the building envelope we recommend execution by a specialist company, because otherwise the proof required for funding and the warranty in the event of damage come apart.
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