Project manager & renovation in La Balme-de-Sillingy.

North-west of Annecy, on the Annecy–Frangy road, La Balme-de-Sillingy is one of the most dynamic towns in the Annecy basin. Backing onto the Montagne de la Mandallaz and bordered by Lac de La Balme and its nature reserve, it has seen its population grow strongly over the past twenty years: families looking for land, people working in Annecy or Geneva, retirees drawn to the setting between farmland and wooded hills. The result can be seen in the built landscape — a village centre becoming denser, and residential housing estates delivered in successive waves since the 1980s.

This growth drives three quite distinct needs. First, new builds, on the last free plots or on divided land. Next, extensions and adding a storey: many houses from the 1980s and 90s have become too small for the families living in them, while land prices make moving unattractive. Finally, renovation, with energy renovation leading the way — these same houses were built before current thermal regulations and use far too much energy.

In all three cases, the sensible approach is the same: entrust the project to a project manager who designs, costs, files the applications with the town hall and coordinates the trades through to handover. That is exactly what Atelier NovAlp does in La Balme-de-Sillingy and the neighbouring towns — Sillingy, Poisy, Épagny-Metz-Tessy, Choisy and Annecy — from our practice in Aix-les-Bains, around forty minutes away via the A41.

Building a detached house remains in high demand in La Balme-de-Sillingy, whether on a housing estate plot, land from a division or a family property. We design houses suited to the site — orientation, slope, overlooking, views of the Mandallaz — and compliant with RE2020 requirements (the French environmental building regulations): a high-performance envelope, low-energy heating, summer comfort. As a general contractor, we can then carry out the works with a commitment on price and timescale.

Extensions and adding a storey are the town's other big demand. Extending a 1980s–90s house to create a master suite, a study or a dual-aspect living space; adding a storey when the building footprint is already used up; converting a garage into a habitable room: each solution is assessed against the plot, the existing structure and the planning rules. We check feasibility before starting the design work, then handle the building permit or prior declaration, quotes from the trades and supervision of the works.

Finally, energy renovation concerns most of the town's housing stock: loft and façade insulation, replacement windows and doors, a heat pump either alongside or replacing an old oil boiler, ventilation. As an RGE-certified company, we design coherent packages of works — not isolated measures — and make your works eligible for MaPrimeRénov' and CEE, with the remaining cost calculated from the quote stage.

Building or renovating in La Balme-de-Sillingy normally means piling up the people involved: a designer for the plans, an engineering firm for the structure, a dozen tradespeople to consult, compare and then coordinate. Atelier NovAlp replaces this chain with a single company that brings together architect, project manager and RGE-certified general contractor. You explain your project once, to a single point of contact who carries it from the first sketch to handing over the keys — the turnkey approach that eliminates the grey areas between trades, the main source of delays and cost overruns.

The set-up adapts to each situation: a full architect's commission for a new build or an extension above the regulatory thresholds, conventional project management if you want to keep control of your works contracts, or general contracting with contractual price and timescale. On the planning side, applications are filed with La Balme-de-Sillingy town hall and assessed against the local plan (PLU): different height and footprint rules between the village centre and residential areas, specific requirements around Lac de La Balme and on the slopes of the Mandallaz, and specifications particular to certain housing estates. We secure this regulatory side before drawing.

Our RGE CertiRénov no. CR-2026-73-0095 certification (whole-house renovation offer, Qualitel Certification) completes the picture: it is required to access MaPrimeRénov', Energy Saving Certificates (CEE) and the éco-PTZ for your energy renovation works. Grants are built in from the costing stage, so you decide on the basis of a real remaining cost. Browse our services or our neighbouring pages: Annecy and Haute-Savoie.