The Difference Between Net and Gross Apartment Area: How to Read the Floor Plan and Compare Units?

You might find two apartments offered with an area of 120 square meters, only to discover when reviewing the floor plan that one gives you wider rooms and a larger interior space. The reason may be the difference in how the area is calculated, or what is added to it in terms of walls, balconies, and shares in common areas. Therefore, understanding the difference between the net and gross area of the apartment helps you read the offer clearly and compare units before committing to a reservation.

Short Answer: Net area, in the sense used in this guide, is the sum of interior floor areas between wall faces after finishing, including rooms, services, and corridors inside the apartment, with balconies presented separately. Gross area may include additional elements depending on measurement limits, and the selling area is the area on which the sales offer is built according to its definition. Do not treat these terms as identical; request a statement explaining what each number includes.

This guide was prepared for publication on the Mohawar Real Estate Development website. The calculation examples are hypothetical and do not represent areas, prices, or loading ratios for any of the company's projects.

What is Meant by Net Area, Gross Area, and Selling Area?

Before calculating the price per square meter, you need to know the limits of the area being priced. Is the measurement from the inner face of the wall or the outer? Does it include partitions and columns? And has a share of the building's corridors been added? These details explain the number more than the description "net" or "gross" alone.

Net Area: What Do You Use Inside the Apartment?

We use the net area here to indicate the floors of the rooms, living room, kitchen, bathrooms, and internal corridors, after excluding the areas occupied by walls and columns. The balcony is presented as a separate item so that the enclosed indoor space is not mixed with the outdoor space. This is a definition for comparison in the article; the definition of the term itself must be verified in the documents of each unit.

Net area does not mean only the sum of bedrooms and living areas. Bathrooms, the kitchen, and the internal corridor are part of the used space, even if their usage value varies for you. Also, floor area alone does not tell you the ease of furnishing or the quality of lighting and ventilation.

Gross Area: The Number Changes Depending on the Measurement Method

It may describe the unit area with walls, or an area calculated up to certain limits, and some offers may use the term to describe a figure that includes other additions. Therefore, it is not enough to hear the phrase "gross area" to know if it includes common areas or balconies.

Professional standards illustrate that results differ according to the measurement methodology. For example, the Gross Internal Area (GIA) definition in the RICS guide includes interior walls and excludes the thickness of perimeter walls and open external balconies. This is an example of a specific definition, not a rule we assume applies automatically to apartment sales offers in Egypt.

Selling Area: The Basis of the Financial Offer

It is the area used to present the unit price or the price per square meter in the sales offer. It may match a specific area on the floor plan, or include additions specified in the area statement. The practical question is: how was this number formed, and where do its components appear in the unit's documents?

Result: Do not conclude The actual area of the apartment From the name of the area alone. Get the dimensions, measurement limits, and component statement, then compare the units with the definition itself.

What is the loading ratio in apartments, and why does the method of presenting areas differ?

The phrase is used Loading ratio in apartments To describe the relationship between a basic area and a larger area after adding certain elements. However, knowing the ratio is not enough: you must know the basic area, what was added to it, and whether the ratio is calculated based on the net or the selling area.

The additions may include walls, balconies, or shares of common parts depending on the presentation method. Do not assume that the entire difference between the advertised area and the interior flooring represents common areas; request a breakdown of each element to prevent double-counting.

Method One: The addition is calculated based on the net area

If the net area is 100 m², and 25 m² is added to it, the selling area becomes 125 m². The ratio of the addition to the net equals:

Addition ratio = (Selling area − Net area) ÷ Net area × 100.

In this example: 25 ÷ 100 × 100 = 25%. When knowing the selling area and the ratio in this way, you calculate the net by dividing the selling area by 1 plus the ratio: 125 ÷ 1.25 = 100 m².

Second Method: The difference is calculated as a percentage of the selling area.

In the apartment itself, the ratio of the difference to the selling area is 25 ÷ 125 × 100 = 20%. Therefore, if the offer refers to this method, the formula is:

Net Area = Selling Area × (1 − Percentage of difference from the selling area).

That is: 125 × 0.80 = 100 m². Note that the same apartment was described as having 25% in the first method and 20% in the second, because the denominator is different.

Therefore, the phrase «120 meters with 25% loading» may mean a net of 96 m² if the addition is calculated based on the net area, or 90 m² if the difference represents 25% of the selling area. Do not rely on any result before obtaining a written definition of the percentage.

Similarly, there is no single percentage by which you can choose the apartment alone. A low difference does not fix a poor layout, and a high difference alone does not explain the type of shared services or their utility. Compare the components of the area, cost, and quality of use together.

How to read the apartment's area from the floor plan and the contract?

Start with a specific floor plan for the unit you are considering, showing its number, floor, issue date, and dimensions. A general model plan or marketing furniture perspective may help you imagine the apartment, but it is not enough to verify its area or match its location.

Living rooms, bedrooms, services, and balconies

For a rectangular room, multiply length by width: a room with interior dimensions after finishing of 4 × 3.5 meters has an area of 14 m². If it contains a protruding column or a recess, ask for it to be calculated according to its actual shape. For irregular rooms, divide the shape into simple parts or consult an engineer to calculate its area.

1. Make sure that the dimensions represent the net distances between the finished surfaces, not the distances between wall centerlines.
2. Calculate the rooms, living room, kitchen, bathrooms, and internal hallways, while avoiding double-counting any overlapping area.
3. Record balconies and terraces separately, and review how they are included in the advertised figure.
4. Review the locations of columns, doors, and windows; they affect furnishing even when the total area is appropriate.
5. If the dimensions are not final yet after finishing, ask for a clarification of their basis and what might change during implementation.

Do not measure a plan image from your phone without a reliable scale; its size may change or its dimensions may be distorted. Written dimensions and the proper architectural file are more useful than estimating distance by the width of the image.

Shared areas and what is mentioned in the unit's documents

Shared parts may include building entrances, stairs, floor landings, corridors, and others. The presence of a calculated share of them in the selling area does not make this area a room inside the apartment, nor does it alone clarify the nature of the rights to use or own them.

Request a statement linking the advertised area to its components: the area of the unit according to the measurement boundaries, the balcony area, any added shared share, and the method of distributing this share. If walls are included within the unit area, make sure they are not added again under another item.

In the contract and its annexes, review the definition of the area, the unit number, the referenced floor plan, whether the area is estimated or final, and the mechanism for dealing with measurement discrepancies upon delivery. Reading these clauses with a specialist helps you understand both parties' commitments instead of relying on verbal interpretation.

The verification method practically differs depending on the execution phase: a ready unit allows for on-site measurement, while reviewing a unit under construction relies on blueprints and documents until execution. To evaluate this aspect within your purchasing decision, read the guide Comparison between ready and under-construction properties.

Thinking about a unit from Mahowar projects? Request the unit plan and clarification of the advertised area, and specify the project name and unit number if available, to review the data related to your choice.

A numerical example comparing two apartments with a similar advertised area

Suppose there are two apartments with an advertised selling area of 120 m² each. After obtaining the area statement, it turned out that the net interior flooring for apartment "A" is 96 m², and for apartment "B" is 90 m². We will use the same net definition for both apartments, separating balconies and excluding walls and columns.

The following numbers are entirely educational and hypothetical, and are not market prices or sales offers.

Usable Area

Apartment B appears to have a lower selling price per square meter and is indeed lower in the hypothetical total price. However, dividing the price by the net internal flooring reveals that its internal meter cost is slightly higher. This comparison helps you understand what you get inside the unit, but it does not mean Apartment A is automatically better.

You might prefer Apartment B for its location, view, or because its total price fits your budget. The net price per meter is a helpful indicator, not a comprehensive evaluation of the property value or a substitute for comparing finishing, amenities, and payment terms.

The impact of internal partitioning on space utilization

Suppose Apartment A has 14 m² of internal corridors, while Apartment B includes 6 m² of them. After subtracting the corridors, 82 m² remains in the first and 84 m² in the second for the rest of the spaces, even though the net area of the first is larger.

This subtraction is a tool to analyze space distribution and does not change the definition of the net area, as corridors are already included in it. Also, some corridors provide useful privacy. Review the size and shape of the rooms and the traffic flow, rather than describing every corridor as wasted space.

When is a smaller apartment more suitable than a larger one on paper?

A smaller apartment may be more suitable when its layout matches your family needs. A regular room that accommodates the bed and wardrobe and allows doors to open may serve you better than a larger room containing narrow corners or columns that disrupt furniture arrangement.

Test the floor plan using your actual furniture dimensions. Determine the location of seating, the dining table, the bed, and closets, then review traffic paths and door openings. Do not rely on furniture drawings in the brochure without knowing their scale.

• Number of rooms: Does it match the required usage without assuming uncertain modifications?
• Privacy: Does the design separate guest reception from the bedrooms?
• Kitchen and Storage: Is there suitable space for appliances and cabinets?
• Lighting and Ventilation: Where do the windows open, and what is the nature of the opposing space?
• Balcony: Does it suit your usage, or does it increase the advertised figure without any significant benefit to you?

Do not make a low loading percentage or increased space a separate goal from your daily life. The best decision for you is the unit that combines a well-understood space, a suitable layout, and a cost you can commit to.

And if your goal is renting or resale, move on after understanding the space to evaluate its suitability for the target audience. You can read the guide Choosing Apartment Space for Investment in New Damietta, which discusses the decision of choosing unit size according to the purchase goal.

What documents and questions should you request before booking?

Request documents that allow you to review the unit itself, then gather the answers in a clear presentation that can be referenced. The clarity of data before booking reduces the likelihood of comparing a marketing figure in one project with a space calculated on a different basis in another.

Documents to help you verify the space

• The unit layout with dimensions, unit number, floor, and issue date.
• The space statement clarifying measurement boundaries, walls, balconies, and any shared additions.
• A financial offer specifying the price, the space used in pricing, and additional items.
• The draft contract and its attachments, especially clauses related to space, layout, and delivery.
• The floor plan or related engineering documents to verify the unit's location, as available for review.

Direct questions for the sales team

1. Is the advertised area net, gross, or selling area, and what is its definition in the offer?
2. What is the interior floor area after excluding walls and columns?
3. What is the balcony area, and how is it calculated within the advertised area?
4. Are there any common additions? What are their elements and distribution method?
5. On which area is the mentioned loading ratio calculated?
6. Are the dimensions before or after finishing, and is the floor plan updated for the selected unit?
7. How is the final measurement determined upon delivery, and how does the contract handle any discrepancy?

If the answer to any important point is not available, ask for clarification before paying the reservation deposit. You can also commission an engineer to review the areas and layout, and a legal specialist to review the impact of the contractual clauses; as both reviews answer different questions.

Common mistakes when comparing the price per square meter between two projects

Comparing selling area to net area: Do not compare a price per square meter calculated on 120 m² of selling area with a price calculated on 100 m² of net area and assume the lower one is better. Standardize the area definition first.

Automatically deducting the loading ratio: Deducting 25% from the selling area is incorrect if the offer intends to add 25% to the net area. Use the formula that matches the ratio's definition.

Assuming the entire difference is common areas: The difference may include walls, balconies, and other elements. Request a breakdown and ensure no item is counted twice.

Relying on the number of rooms: Two three-bedroom apartments may differ in room dimensions and furnishability. The name and number of rooms do not replace reading the floor plan.

Ignoring the cost of reaching a comparable habitable state: Compare the finishing level and financial items outlined in the offers, such as maintenance or parking if applicable, and determine what is included in the price versus what is paid separately.

Equating different payment plans: Differences in down payments, installments, and duration can make the total price alone insufficient for judgment. Place the financial obligations and their schedules alongside the area, and verify your ability to pay.

Transferring data from one unit to another: Do not assume that all project units have the same loading ratio or layout. Review the specific unit data, especially when floors, locations, or balcony shapes differ.

A comparison is not complete by reviewing the area alone; also use criteria Choosing the location of the property to evaluate the street, services, and accessibility alongside the unit data and its cost.

How to use this comparison when choosing an apartment in New Damietta?

When exploring Mahawer Developments Projects, start by identifying your needs for rooms, location, and budget, then request the floor plan of the unit that suits you and its area statement. A useful comparison is made between specific units, not between general numbers in ad titles.

Among the options you can explore is The ONE by Mahawer Project in New Damietta, which includes residential units within a mixed-use project in the Central District C on Stadium Road. Review the details of the selected unit and its updated offer; this brief does not imply any definition of its area or specific loading ratio.

Start with the units that suit your needs: Learn about the details of the residential units in the ONE project, then request the specific unit data, areas, and available prices at the time of inquiry.

Frequently asked questions about the net and gross area of the apartment

Is the gross area the actual area of the rooms?

Not necessarily; it may include walls or additional elements depending on the measurement definition. Likewise, the sum of bedrooms and living rooms alone does not represent the internal net area, because the kitchen, bathrooms, and corridors are included in the net definition used here. Request a statement specifying the components of the figure.

How do I know the net area of the apartment before execution?

Request a dimensioned plan and an area statement for the specific unit, and check whether the dimensions are calculated after finishing. An engineer can calculate the planned area based on this data. However, this does not represent a final field measurement for an apartment not yet executed; also review the verification mechanism upon delivery.

Is the balcony included in the advertised area?

It may be included or presented separately depending on the method of calculating the area in the offer and documents. Ask about its area and how it is calculated, and do not assume a fixed weight for it. To compare two apartments, separate the enclosed indoor area from the balcony and then evaluate the benefit of each.

How do I compare the price per square meter of two apartments with different area calculation methods?

Get an interior area calculated using the exact same definition for each apartment, then divide the comparable total price by this area. Use the resulting figure alongside the total price, finishing, location, amenities, and payment terms, but do not rely on it alone to determine the unit's value.

What should I do if the area in the advertisement differs from the blueprint or the contract?

Start by verifying that the documents pertain to the same unit and use the same basis of measurement. Request a written explanation and an updated statement addressing any error. If an unexplained discrepancy remains, postpone your commitment to booking until the measurements and clauses are reviewed with specialists; the difference might be in the definition or the data itself.

Before choosing, compare the area whose components you understand

Understanding the difference between the net and gross area of the apartment Starts by defining every number, then reading the blueprint and verifying the loading percentage and its components. Afterwards, you can compare the price per meter on a uniform basis, test the suitability of the layout for your needs, and review the full cost. Bring three things with you to the comparison: a dimensional blueprint, a clear area statement, and a financial offer that matches the unit.

Are you looking for an apartment that suits your needs in New Damietta? Contact Mohawer to inquire about available units, their blueprints, and payment systems, or Call 15258. Specify the number of rooms, budget, and required area to start the comparison with information specific to your needs.

Preparation: The Content Team at Mohawer Real Estate Development.

Measurement References:
RICS Property Measurement, 6th Edition,
AndInternational Property Measurement Standards (IPMS),
AndRICS explanation of wall calculation differences within IPMS 4.1 and 4.2.
These references are used to explain the importance of defining the measurement methodology, and they are not intended to be applied to any contract or project without a clause specifying that.