Building your own house is an exciting process, but also terminological pitfalls. Every investor at some stage encounters terms that, although they sound similar, mean a completely different scope of work and, more importantly, costs. Two of them, the closed shell state and the developer state, are often confused, which leads to costly misunderstandings. Understanding what exactly is behind these definitions is the foundation of a successful investment. So what is the key difference between the raw and developer state and what should you pay attention to when signing a contract with a contractor?
Raw open state – what is it
The first step is the raw open state (SSO). It includes pouring the foundations, erecting load-bearing walls and chimneys, making ceilings and assembling the roof structure, but without covering it yet. The building at this stage is basically a skeleton, completely exposed to the elements. Only after reaching it can we move on to the next, key phase.
Closed shell – safe building shell
The closed shell state (SSZ) is the moment when a building takes its final external shape and is protected from the weather’s vagaries. It can be compared to a solid, tight shell that protects what is most valuable – the structure. At this point, the construction work reached a key turning point, allowing further work to be carried out indoors, even in the middle of winter.
The closed raw state usually includes:
- All elements of the open raw state.
- Complete roof structure with the target covering (e.g. tiles, sheet metal), insulation and guttering.
- Window joinery, including façade and roof windows.
- Exterior doors and garage doors.
At this stage, the building is already closed. This means that the interior is protected from rain, wind and snow. However, inside we still have raw walls, concrete ceilings and no installations. It is a safe haven for further stages, but not yet a home. Absolutely everything that makes it a place to live is missing.
Developer status – what is it?
The concept of developer status is much more fluid and, importantly, lacks a single, statutory definition. This is where the source of the biggest misunderstandings between the investor and the contractor lies. In market practice, however, it is accepted that the developer’s state is a building fully prepared for finishing works. It is a canvas on which the future resident can paint his dream interior.
However, this “canvas” can have a different texture. It is worth distinguishing at least two standards.
Developer Basic Condition
This is the absolute minimum that allows you to start finishing work.
- All internal installations: electrical (without accessories, the so-called white installation), water and sewage (only accesses), central heating (often with the simplest radiators, without a heat source).
- Plasters on walls and ceilings (usually gypsum machine).
- Floor screeds, which are the basis for the target floors.
- Thermal insulation of the building (façade insulation) with external plaster.
- Exterior window sills.
Developer status increased
This is an option that brings the building closer to a “turnkey” state, offering higher comfort and less work for the investor.
- Extended installations: underfloor heating, installed heating boiler or heat pump, preparation for an alarm system or smart home.
- Better wall finish: walls covered with plaster and primed.
- Additional elements: installed external roller shutters, internal window sills.
- Exterior work: often includes making a driveway made of cobblestones, a terrace and a basic fence of the plot (e.g. panel).
Land development issues, such as driveway, fencing or tidying up the plot after construction, are one of the most common points of contention. Their scope must be precisely defined in the contract.
Turnkey Condition – Ready to Move in
After reaching the developer state, the last, most satisfactory stage remains – turnkey finishing. It transforms the building into a house. These works are entirely on the investor’s side and include:
- Painting walls and ceilings.
- Laying floors (panels, parquet, tiles).
- Installation of interior doors.
- Complete bathroom finishing (white installation: bathtub, shower, washbasin, toilet, fittings).
- Kitchen equipment with furniture and household appliances.
- Installation of lighting and electrical equipment (sockets, switches).
It is estimated that bringing a house from a developer state to a turnkey state may consume an additional 30-50% of the value of the work done so far, depending on the selected standard of materials.
Raw or developer state? Which is better
Choosing when to take over a construction site from a contractor is a strategic decision that depends on resources, time, and risk appetite.
Select the Closed Raw state if:
- You want to have full control over the quality and type of materials used for installation and finishing.
- You have the time and energy to coordinate the work of many teams (plumbers, electricians, plasterers) on your own.
- You have trusted and proven subcontractors.
- You want to spread the costs of your investment over time, completing the next stages as funds become available.
Select a developer state if:
- You value convenience and want to minimize your involvement in the construction process.
- You want one contractor (developer) responsible for most of the key work.
- You have limited time and want to move on to the finishing stage as soon as possible.
- You finance the construction with a loan, and the bank requires you to bring the investment to a certain stage.
How to avoid costly misunderstandings
The lack of a formal definition of the developer’s status makes the contract with the contractor the most important document on the entire construction site. The general statement “bringing it to a developer’s state” is insufficient.
A good record must be a technical specification. Instead of generalities, it should contain specific parameters.
- Wrong spelling: “Making an electrical installation.”
- Good record: “Execution of the electrical installation according to the design, including 95 points (sockets, switches, lighting points) with the use of X-type accessories, model Y (the so-called white mounting).”
A construction supervision inspector can be an invaluable help in this process. This is an expert who will not only help in the precise formulation of the provisions of the contract but also verify the quality of the work performed at every stage of acceptance. Its presence is the best insurance policy for an investor.
Summary: raw or developer state?
The choice between the acceptance of a house at the stage of the shell, closed state and the development stage depends on the individual strategy. The first option gives you more control, the second – convenience. Whatever the decision, awareness is key. The difference between these two standards is not cosmetics, but a financial and organizational gap. Understanding where the raw state ends and the developer’s state begins, and securing your interests in a meticulous contract, is the best foundation for building your dream house.
Anna Awłasewicz