Let us do this exercise honestly, because we sit on both sides: we buy flats to renovate (it is our trade) and we sell finished homes. This is the full account of each path.
The real cost of renovating
According to the sector's 2026 price guide, a full renovation in Madrid runs between €800 and €1,200/m² at mid-to-high specifications, rising to €900-1,600/m² before VAT in Barrio de Salamanca. In the segment we work in — bespoke joinery, natural stone, ducted climate control, home automation — the real investment frequently exceeds €2,000/m². On a 200 m² flat, that is €400,000 or more, plus design fees, licences, site supervision and 12-14 months of your life.
What the market pays for the finished product
The premium exists and has been measured: renovating a home in Madrid increases its sale price by up to 30%, according to Casavo's analysis reported by idealista/news, and finished homes sell considerably faster. That premium is no market whim: it prices in the cost of the works, the financial cost of 12-14 months, the risk of overruns (the rule, not the exception, in old buildings) and the value of not living through a building site.
So which path to choose?
Renovating yourself makes sense if three conditions hold: time (14-18 months with no rush to move), team (an architect and builder you trust, because cost overruns for inexperienced renovators are high) and the stomach to manage surprises — in an 1900s building, there are always some. If any of the three fails, the premium for a finished flat is probably the best-spent money of the whole deal. That is exactly the gap our boutique homes fill: the result of a top-level renovation, without the risk or the wait. The before and after of our projects shows both ends of the process.
