Construction project management in Laconnex
Planning building work? Apartment, house or building renovation, a new storey or a roof extension, running the project is our job.
In Laconnex, four residential buildings in five are single-family houses, a third of the stock is old and a quarter is recent. HMG Construction Management SA manages their renovation, extension or construction. The firm files the permit application as a registered MPQ agent, prices the project and runs the site to SIA standards.
What building projects in Laconnex?
Laconnex is a municipality in the Champagne sector. It has 713 residents at the end of 2025 on 383 hectares, according to the municipal statistical profile, which gives 186 residents per km2. The OCSTAT table of buildings by construction period counts 206 residential buildings at 31 December 2025, of which 166 are single-family houses.
Both ends of the age scale are well represented. 71 buildings were put up before 1946, more than a third. 51 came after 2000, close to a quarter. One firm therefore has to handle both the old house that needs deep work and the new or recent villa. The 40 buildings with several dwellings remain a minority.
The municipality presents its services on the Laconnex website (in French).
Permits in Geneva
For a new build, everything depends on the zone. According to the cantonal page on permit types, a villa in the fifth zone without any exemption follows the fast-track procedure, known as APA. The rules of that zone are in the LCI, the cantonal building act. If the project involves the complete demolition of an existing building, the demolition requires an application separate from the building application.
The two files are prepared together so that the timings follow on. Our guide to building permits and procedures in Geneva describes how to proceed.
Types of work in Laconnex
- House renovation, for the 166 single-family houses in the municipality.
- Villa construction, in line with the 51 buildings completed since 2000.
- House extension, a frequent answer before thinking of moving.
- Attic conversion, suited to the roofs of old houses.
- Energy renovation, to be planned for the 71 buildings from before 1946.
How HMG manages your project in Laconnex
For a renovation as for a new villa, two paths lead to site. HMG can design the plans, file the application and manage the works. Your architect can also sign the project and obtain the permit. HMG then picks up the file from that point and sees it through with them.
The firm pays particular attention to the end of the job. Before handover, it walks the works with each contractor and lists the defects to correct. It follows their clearance, gathers the as-built documents and the warranties, then draws up the final account by trade. You know what each part of the house cost against the starting budget.
Municipalities in the same sector
The six other municipalities of the Champagne sector each have a page.
Projects by HMG in the Canton of Geneva
Frequently asked questions
Is the housing in Laconnex mostly old or recent?
Both. Of 206 residential buildings, OCSTAT counts 71 built before 1946 and 51 built after 2000. The other 84 date from the period in between.
Is a separate application needed to demolish before rebuilding?
Yes. A complete demolition requires an application separate from the building application. The firm prepares the two files in a coordinated way.
Which procedure applies to building a villa?
A building in the fifth zone without any exemption, a villa for example, falls under the fast-track procedure. In other cases a full application is needed. The zoning of the plot is checked before any sketch.
Related guides and pages
Request a call back
Describe your project in a few lines. HMG calls you back within 24 hours.