A developer had spent £3.2m building a six-bedroom property in Berkshire. At the marketing stage, the estate agent’s feedback was direct: the technology provision was £85,000 below buyer expectation. Not because the developer had cut corners. Because technology infrastructure sat between disciplines — between the architect, the main contractor, and the M&E engineer — and nobody had been responsible for it.
That situation could have been prevented for approximately £12,000 at planning stage. This article explains exactly what needs to be specified, and when.
Why Most Premium Developers Get This Wrong
It is rarely a matter of indifference. Most developers at the premium end care deeply about the quality of their product. The problem is structural: technology infrastructure does not naturally belong to any single trade. The architect focuses on the design. The M&E engineer focuses on mechanical and electrical systems. The main contractor delivers to specification. If nobody specifies the technology infrastructure at planning stage, nobody builds it.
The window to fix this at low cost is narrow. Once groundworks are complete, once first fix is underway, once walls are plastered — the cost of rectification rises rapidly. By the time the property is marketed, it is either right or it isn’t. And if it isn’t, the cost of putting it right falls to the buyer — which directly affects both the sale price and the development’s reputation.
What Premium Buyers Expect in 2026
Buyer expectations at the £1.5m–£15m+ level have shifted materially in the past five years. What was aspirational in 2020 is now baseline. Specifically:
Seamless connectivity throughout the property — enterprise-grade networking, full coverage indoors and outdoors, no dead zones. A consumer router is not adequate and sophisticated buyers know it.
Integrated security that is intelligent and discreet — AI-enabled cameras, video door entry, access control, and alarm as a unified system. Not four separate products from four separate suppliers.
Smart energy management — solar, battery storage, and EV charging coordinated intelligently. A property that generates energy but cannot manage it intelligently is increasingly difficult to market at the premium end.
AV distribution and lighting control — multi-room audio, 4K distribution to every screen, and architectural lighting scenes. These are not considered luxuries. They are expected.
Technology that is invisible — systems that work effortlessly and integrate with the architecture. Not products mounted on brackets or cables visible at skirting level.
The Five Decisions That Cannot Wait
1. Structured cabling architecture
Category 6A or 7 data cabling routed to every room, outdoor zone, and technology position during first fix. The cost difference between doing this at first fix and doing it after plastering is typically 8–12x. This is not a technology decision — it is a construction scheduling decision that needs to be made before walls go up.
2. Centralised equipment room
A properly sized, ventilated, and accessible equipment room. Minimum 12U rack space for a four-bedroom home; 18–24U for six or more bedrooms with full integration. Most developments either omit this entirely or put it in a space that is inadequate. Once walls are up, the options narrow significantly.
3. Power provisioning for technology loads
Smart lighting drivers, AV distribution equipment, security processors, and EV chargers all carry specific electrical loads. These need dedicated circuits, specified at the consumer unit design stage. Retrofitting additional circuits into a finished property is invasive and expensive.
4. Enterprise network infrastructure
Access point positions, managed switch locations, and patch panel provision — specified by a technology consultant during fit-out. The physical positions need to be decided during first fix so conduit and cabling can be installed correctly.
5. External infrastructure conduit
Conduit from the consumer unit to each parking position (for EV charging), from the equipment room to all external camera positions, and to gate entry and boundary sensor positions — all installed during groundworks. This is the lowest-cost intervention available at construction stage, and one of the most expensive to add retrospectively once drives and paths are laid.
The Planning Stage Window
The most valuable point at which a technology consultant can be engaged is before planning submission. At that stage, equipment room positions can influence floor plan decisions. Cabling routes can be coordinated with structural design. Electrical capacity can be designed in from the outset.
At first fix, the position is still excellent — cabling and conduit are being installed and the cost is low.
At second fix, some decisions are still available but options are more limited.
At completion, the situation is expensive. Remedial work, disruption, and compromise become unavoidable.
What This Looks Like Commercially
The Berkshire project referenced at the start of this article ended differently to most. Incontrol UK was engaged at planning stage on the next development from the same developer. The infrastructure brief was incorporated into the main construction programme at no additional cost to the project timeline. At second fix, we installed the full technology system. The development sold at £350,000 above the initial agent estimate, with technology integration cited as a key factor in two sale negotiations.
The cost of the infrastructure specification: approximately £12,000 across six units. The cost of not specifying it on the previous project: £85,000 in a single property, plus the reputational impact on the development.
If you are working on a premium residential project and would like a technology infrastructure review at planning stage, we offer this at no charge. Thirty minutes. Your plans. Our expertise. An honest view of what needs to be specified and when.
📞 0208 763 0739 ✉️ sales@incontrol-uk.com → Download the Developer Specification Guide
Incontrol UK Smart Home , Security & AV Specialist 
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