When choosing a sales agency for a new-build development, a developer should weigh eight criteria. The agency should have a team dedicated exclusively to new builds and an in-depth knowledge of the area and the product. It should provide strategic consultancy from the design stage and offer multichannel, international reach. It must also know how to make an off-plan home tangible, provide regular and transparent reporting, adapt to the vision behind each development, and support buyers all the way to handover. The decision is best made early, ideally before the commercial launch. The sales agency shapes pricing, sales pace and how the development is perceived from day one.
Why the sales agency matters so much to a development's success
In a new-build development, most homes are sold off-plan, sometimes more than two years before completion. Buyers cannot walk through their future home, touch the materials or check the views. They decide based on floor plans, renders, a specification sheet and the confidence they feel in the people advising them.
That is why selling new builds is a different discipline from selling resale property. It means anticipating demand, pricing in phases, and managing reservations and contracts over long timeframes. It also means keeping buyers informed through months of waiting. The right sales agency speeds up absorption, protects margins and reduces the risk of unsold units in the final stretch.
The 8 criteria for choosing a new-build sales agency
1. A team dedicated exclusively to new builds
The first filter is knowing who will actually work on the development. Many agencies assign new builds to the same agents who handle their resale portfolio. That shows in their product knowledge, their availability and their follow-up.
A dedicated new-build department understands a development's timelines and can read a specification sheet. It also speaks the same language as the developer's technical team. Ask how many people will work on your development, what other projects they are handling in parallel and who your single point of contact will be.
2. Real knowledge of the area and the product
Every micro-market has its own buyer. A three-bedroom home does not sell the same way in Valdebebas as in Barcelona's 22@ district, in Nou Llevant (Palma) or in Malilla (Valencia). The agency should know which unit types sell fastest in the area and what price per square metre buyers will accept. It should also know which extras they value, such as terraces, storage rooms, communal areas or energy efficiency, and what competition sits a few streets away.
The best sign is an agency that brings its own data from closed transactions in the area, not just asking prices from property portals. Ask what real sales information it has for the area around your development.
3. Strategic consultancy from the design stage
The agencies that add most value are the ones involved before the brochure exists. At the design stage it is still possible to adjust the unit mix, the distribution of layouts, the allocation of terraces or the communal amenities. That way the development matches what the market is asking for.
Ask for a proposal that includes a market study, a product mix recommendation, a phased pricing strategy and a sales calendar. If the proposal is limited to a fee percentage and a list of portals, the strategic side is missing.
4. Multichannel and international sales capability
A development needs to reach its buyers through every channel they use. That includes property portals, targeted digital advertising, the agency's own client base and its office network.
In markets such as Mallorca, Barcelona, Valencia or central Madrid, international buyers can account for a significant share of demand. Consider whether the agency offers content and service in several languages and has experience with non-resident buyers. A presence in more than one city is also an advantage, as it multiplies the pool of cross-referred clients. Ask what share of its sales comes through each channel.
5. Making a home that does not yet exist feel real
Selling off-plan means selling a promise. Visualisation tools make a clear difference to conversion: interactive floor plans, accurate renders, virtual tours, a show flat or a materials showroom. Moving from 2D plans to a 3D experience helps buyers understand spaces, orientation and finishes before they reserve.
Ask too how customisations and changes to finishes are handled. A well-organised process avoids friction with the contractor and delays at handover.
6. Regular and transparent reporting
A developer needs to know at all times how sales are progressing. A good report covers enquiries by channel, viewings and signed reservations. It also covers the most common objections, media spend, and cost per enquiry and per sale. Ideally it arrives at an agreed frequency, weekly or fortnightly, together with recommendations.
This is one of the most important criteria and one of the easiest to verify: ask for a real, anonymised sample report from another development.
7. Adapting to the vision behind each development
Every developer has its own way of understanding its product, its brand and its relationship with buyers. An agency that applies the same template to every development dilutes what makes yours unique.
Look for a team that builds the sales narrative around the developer's vision. That narrative covers the name, the visual identity, the selling points and the tone of communication. The team should also respect the developer's timelines and decisions at every stage. Ask how they would approach communication for your development and how it would differ from the others they handle.
8. Supporting buyers all the way to handover
The sale does not end with the reservation. Many months can pass between signing the private purchase contract and completing the deed of sale. During that time buyers need answers on stage payments, financing, changes to finishes, construction timelines and handover.
An agency that manages this process reduces cancellations, protects the developer's reputation and generates referrals for future developments. Check that someone is assigned to this stage and that the agency is fully familiar with the documentation required under Spanish consumer information rules for home buyers.
Warning signs when choosing a sales agency
Some signs are worth taking seriously before signing:
- A proposal that promises very short sales timelines without having analysed the area.
- A recommended price well above market level to win the mandate.
- No fixed point of contact.
- Reports that only count viewings, without explaining why they are not turning into reservations.
- A marketing budget with no detail on where and how it will be spent.
A reliable agency would rather set realistic expectations at the start than cut prices halfway through a development.
How to compare proposals
The most effective approach is to request written proposals from two or three agencies using the same brief. Meet the team that would actually work on the development, not only the sales director. It is also worth asking for references from developers they have worked with recently and a sample report. Then compare proposals on what they include, not only on the fee percentage. Two proposals with the same percentage can hide very different levels of investment, commitment and strategy.
Frequently asked questions
When should a developer appoint a new-build sales agency?
Ideally at the design stage, before the unit mix and pricing are finalised. This allows the agency to contribute market insight that improves the product and to plan the launch well in advance.
How much does a new-build sales agency charge?
The usual structure is a percentage of the sale price of each unit. The figure depends on the size of the development, the location, the services included and who covers the marketing investment. Proposals are best compared by the services they include, not by the percentage alone.
Is it better to work with one agency on an exclusive basis or with several?
For new builds, an exclusive mandate usually delivers better results. It allows a consistent pricing strategy, unified communication and a single point of contact responsible for sales pace. With several agencies it is harder to control the development's image and follow-up.
What is the difference between a new-build sales agency and a traditional estate agency?
A new-build sales agency works with the developer from before the launch. It takes on the product, pricing and marketing strategy for the entire development and supports buyers throughout construction. A traditional agency focuses on brokering completed homes.
What should the contract with the sales agency include?
At a minimum, it should cover:
- The scope of services.
- The fees and when they become payable.
- The marketing investment and who covers it.
- The contract term.
- The frequency and content of reporting.
- Sales pace targets.
- Exit conditions.
How long does it take to sell a new-build development?
It depends on the location, the number of units, pricing and market conditions. A good sales agency should present a phased sales forecast based on local data and review it regularly with the developer.
How we work on new builds at aProperties
At aProperties, a real estate agency with offices in Madrid, Barcelona, Valencia and Palma, new builds are handled by a dedicated department. That team supports the developer from the initial market study through to the final handover. Each development has its own strategy, built on the vision of those behind it and on an in-depth knowledge of each micro-market. The developer receives regular updates on how it is progressing.
If you are preparing a development, we would be glad to review it with you before launch.