Project Catalog

Ready-made house designs.

Over 800 architectural designs for single-family homes, complete with full technical documentation. Customized for your lot and ready for a building permit within one month.

811
Active projects in the catalog
from 4 200 €
Price for complete documentation
1 month
Finalized construction plans

Catalog of ready-made house designs

Shown 140 from 811 the project

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Everything You Need to Know

A brief overview of the ready-made standard designs.

Before choosing a package, review the key details below: why it’s a good choice, what’s included, what’s not, and how to order.

30%

Relatively low price

You can save up to 30% on the cost of a newly designed house. A ready-made design is significantly more affordable than custom design.

1mo

Fast delivery

You receive the project quickly—compared to the 2-3 months it would take with standard design. The finished projects have been developed and tested.

3D

A predictable outcome

Right at the beginning, you can see a 3D rendering of the single-family home, the floor plans, and the total floor area.

Project Purchase

4 clear steps to the project.

You can purchase a ready-made house design online or from the ISPDD office in Sofia.

1

Project Selection

Browse the catalog, check if the design fits your lot, and send an inquiry.

2

Signing of a contract

Review of documents, source data, and terms and conditions. Signing of the contract.

3

50% down payment

You pay 50% upon signing. We will then begin adapting the design to your lot.

4

Broadcast and Finale

You will receive the files at the office, by mail, or via courier. You pay the remaining 50% upon delivery.

About prices

The prices listed include the delivery of two sets of drawings for each specialty, signed and stamped by the respective designer. Prices do not include VAT.

What else should we keep in mind?

The final draft is a compromise on readiness.

Since no two plots are exactly alike in terms of view, orientation, layout, and site conditions, using a pre-designed house plan is a kind of compromise—adapting a pre-designed house to a specific site.

If you are not willing to accept this compromise, you can take advantage of our additional services to make minor changes to the existing design or to create an entirely new one based on a house of your choice, tailored to your specific needs.

See custom design →

Choosing a house design

What are the minimum requirements for your plot?

Before deciding on a specific design, you need to know the minimum requirements for your lot so that the design can be implemented. For your convenience, we have provided the technical specifications for single-family homes, including the built-up area (BA), total floor area (TFA), and house height, which must meet the requirements specified in the design permit.

You should also check whether the lot is large enough to accommodate a single-family home while complying with the setback requirements from the building lines. To this end, we have specified the dimensions of the houses and the estimated minimum plot size required to accommodate the house.

Get a free assessment to see if the project is a good fit for your property—send us a floor plan and we’ll get back to you within one business day.

Required documents

To purchase a project.

  1. 1
    Documents proving ownership of the land/lot.
  2. 2
    A sketch with a design permit or an excerpt from a valid detailed urban plan.It is issued by the municipality’s chief architect and is valid for 6 months. If necessary, we can prepare a detailed proposal to support the issuance of the permit.
  3. 3
    Opinions and data from the operating companies.
    • Electrical grid — connection approval or coordinated permit. Issued by the local electricity distribution company; the capacity required for the project must be specified. For our standard designs, request up to 15 kW.
    • Water and Sewerage — a statement of approval for connection to the water supply and sewerage system or an approved permit. Issued by the local water and sewerage company.
The documents listed in items 2 and 3 are required for the submission of the project documentation. The title deed is required for the issuance of the site plan with a design approval and, subsequently, for the submission of the documentation for a building permit.

Required input data

To begin the design process.

  1. 1
    Surveying of the site.This is necessary for the proper positioning of the house on the lot and for anchoring the building to the ground.
  2. 2
    Geological and hydrological surveys of the site.They are not mandatory for some municipalities, but are recommended for refining the structural design.
The source data is specific to each individual plot. It is prepared by specialists in the relevant fields.
The source data is required to ensure the submission of accurate project documentation. If you do not know any such specialists, you may request that we prepare them upon further agreement.

Project Content

9 parts in each project.

All standard designs have been developed during the technical design phase (TD). The price includes:

01

Architecture

02

Constructive

03

Electrical

04

Water and Sewerage

05

HVAC

06

Energy Efficiency

07

Energy efficiency compliance assessment report

08

Fire Safety

09

Health and Safety Plan

All parts of the project were designed by licensed architects—members of the Chamber of Architects in Bulgaria (CAB) and the Chamber of Engineers in Investment Design (CEID).

What the projects DO NOT include

Transparency for everything not included in the package.

For the sake of clarity, here is what remains the investor’s responsibility and is not included in the price:

Design supervision — architecture and structure

Not done automatically. Under a separate contract at the start of construction — with the architect and with the structural engineer (structural supervision is required by law).

Landscaping and site works

The design of the outdoor space — paving, fences, planting — is prepared separately, to a brief for the specific plot.

Street utility connections

Street utility connections (water and sewer, electricity, gas) — as specified by the relevant utility company.

Surveying and Geology

Site survey and geological report — to be conducted by specialized firms prior to the start of the design phase.

Additional services

If the final draft is not sufficient.

If, for some reason, the house design you’ve chosen can’t be applied exactly as is to your lot, here’s what else we can do.

Minimal changes

Changes to facade materials and to the size of windows and doors — free of charge. Mirror reversal — +10% of the design price.

Significant changes

Renovation of the layout, addition of a garage, terrace, or floor. Pricing is available upon request as a percentage of the total cost.

New project at the base is ready

We will create a completely new design based on a house of your choice, tailored to your specific needs and the plot of land.

Custom design

An entirely new architectural design to your brief — tailored to the plot, your way of living and your budget.

Other categories

Can't find exactly what you're looking for?

Browse the other project categories in the ISPDD catalog.

01

Single-story houses

Everything on one level, with no stairs. Perfect for flat lots and accessible living.

View projects →02

Prefabricated houses

Fast construction, quality control. Ready-to-build prefabricated designs.

View projects →03

Two-story houses

The most sought-after solution for families with children. A bedroom wing upstairs, a living wing downstairs.

View projects →04

Houses with a garage

Covered parking and a workshop. A garage is the feature our clients want most.

View projects →

Can't find exactly what you're looking for?

Custom design.

Over 900 projects in our portfolio have been custom-designed. We can do the same for you—a home that perfectly suits your lot, lifestyle, and preferences.