What we solve
From the purchase decision to a property ready for the market
Reliable technical information to decide, and a team that turns that information into a profitable project.
Pre-purchase inspection
We visit the home before you buy and give you a report on the defects observed and its planning status, so you can negotiate with facts.
Technical due diligence
Technical and planning review of buildings or several properties before a portfolio purchase.
Value-adding renovation
We assess the condition of each property, propose the intervention that adds value and draw up the project before it is let or sold.
Major rehabilitations
Full rehabilitation of entire buildings, including energy and structural upgrades, from diagnosis to completion.
Change of use from commercial premises to home
Preliminary feasibility study and, if it goes ahead, project, planning permission and site management.
Habitability and energy certificates
Certificate of habitability and energy certificate to let or sell once the works are finished.
How we work
Phase by phase, deciding at every step
You can commission just the inspection, or work with us until the property is ready for the market.
1. Before you buy
We visit the property and review the documentation and its planning status.
2. Proposed intervention
Which works are needed and which add value, with an estimate of their cost.
3. Project and quotes
We draw up the project with drawings and quantity measurements and request quotes from several contractors for you to choose from.
4. Permits and works
We obtain the permits and manage the works so they are done properly, on time and according to the project.
5. Ready for the market
Certificate of habitability and energy certificate to let or sell.
Before you sign
Architects for investors: technical facts to decide
A property purchase is won or lost in what you cannot see on the viewing: a damaged structure, services that need redoing or a use that is not legal. Working with architects for investors before the purchase turns those doubts into concrete information you can negotiate with.
If the deal goes ahead, the same team proposes the intervention that adds most value, draws up the project, requests quotes from several contractors and manages the works until the property is ready to let or sell.
That is what we did in the change of use of commercial premises in Nou Barris: an 86 m² bar turned into a three-bedroom rental home with a certificate of habitability.
Projects
Renovations and changes of use that add value to your investment
Three examples of the kind of intervention we propose as architects for investors: homes that gain usable floor area, daylight and a legal use so they can be let or sold.
Flat with Catalan vaults in Sarrià
Full renovation of 110 m² in a 1966 building: kitchen, dining and living areas joined under the restored vaults, and four double bedrooms. See project →
From commercial premises to home in Sants
Ground-floor premises on Carrer Sugranyes turned into a 62 m² home, with views of the courtyard from every room and ready for an extra bedroom. See project →
Joining two flats in the Eixample
Two flats on Carrer Aragó turned into a single 160 m² home, designed for a sense of space along the whole façade. See project →
Where we work
Barcelona and all of Catalonia
As architects for investors, we carry out inspections in Barcelona and its metropolitan area, and elsewhere in Catalonia when there are several properties in the same area.
We take on renovation and rehabilitation projects throughout Catalonia.
Why Kaitek
Technical profile, design vision
- More than 20 years diagnosing building defects and inspecting properties before purchase.
- Registered architects in charge: Sergio Sanz (COAC registration no. 63,249) and Pau Martínez (registration no. 55,403 with the COAC) sign the work.
- Large-scale rehabilitation: design and site management of the energy retrofit of three public housing blocks in Can Vilardell (Terrassa).
- Service in English, Spanish and Catalan, for local and international investors.
Frequently asked questions












