New Build Upgrades and Extras: Which Are Worth Paying For and Which Are Developer Margin

Understanding the Upgrade Sales Model

When you visit a new build sales centre, you will typically be presented with a standard specification — the level of finish, fittings, and fixtures included in the base purchase price — and a range of upgrades available for an additional fee. These upgrades are presented attractively, often installed in a well-lit show home, and sold by a trained sales adviser whose job is to maximise the value of each plot sale.

The upgrade model is a significant profit centre for housebuilders. Gross margins on kitchen upgrades, flooring, and sanitaryware can be substantially higher than the margins on the base property itself. Buyers are psychologically susceptible at this stage — they are excited about their new home and making decisions under time pressure (the exchange deadline clock is already ticking).

This does not mean upgrades are always bad value. Some genuinely are more cost-effective to incorporate into the mortgage than to arrange separately after completion. But they must be evaluated on their individual merits, not as a package.

Upgrades Worth Considering

**Kitchen upgrades.** Moving from a developer's standard kitchen specification to a premium specification is one of the upgrades most likely to represent genuine value. The standard specification on mainstream housebuilder sites — typically a mid-market fitted kitchen with laminate worktops and basic appliances — is something buyers frequently replace within the first five years at significant cost. If the premium kitchen specification includes solid or composite stone worktops, a superior cabinet brand, and better appliances, the genuine cost of replicating it independently (including removal of the standard kitchen, supply and installation of the new one, and the associated disruption) can exceed the upgrade price.

Evaluate by: getting an independent quote for the premium specification from a reputable kitchen retailer and installer. Compare the total installed cost against the upgrade price. If the upgrade is within 15% of the independent quote and you like the developer's specification, it is likely worth taking.

**Flooring in living areas.** Laying floor coverings after you have moved in is disruptive and expensive. For large open-plan living areas, a developer flooring upgrade — particularly for engineered wood or good-quality luxury vinyl tile — can represent reasonable value if the specification is clearly stated and the product is identifiable by brand and grade. Avoid vague specifications like "hardwood effect flooring" where you cannot verify what you are getting.

**EV charging point.** Building regulations now require EV charging points to be installed in new builds as standard. However, the standard provision is often a cable-only "readiness" provision without a full smart charger. Upgrading to a full 7kW smart charge point at build stage — when the electrician is already on site and cables are being run — is materially cheaper than a post-completion installation (which requires scaffolding or cherry-pickers to run cables to external walls). This is one of the clearest value-for-money upgrades available.

**Additional sockets and data points.** Electrical first-fix work is done during construction before walls are plastered. Adding additional double sockets, USB sockets, or structured wiring (data points in each room) at this stage costs a fraction of what it would cost post-completion, when walls would need to be chased and replastered. If you know you will want additional sockets in specific locations — home office, above kitchen worktops, in utility rooms — incorporate them at upgrade stage.

Upgrades to Approach With Caution

**Turf and landscaping.** Developer-supplied turf and landscaping is invariably entry-level: thin rolls of turf laid over minimal topsoil, with little preparation of the sub-base. You will get better results by waiting until the first spring or autumn after completion, hiring a local landscaper, properly preparing the soil, and laying good-quality turf. The developer's landscaping price rarely justifies the specification delivered.

**Sanitaryware upgrades.** Moving from the developer's standard basin and toilet to a "designer" alternative in bathrooms and en suites is a high-margin area for developers. The price differential between standard and "premium" sanitaryware at developer upgrade prices often bears no relationship to the actual cost difference in the wholesale market. If you have strong bathroom aesthetic preferences, it is often better to accept the standard sanitary ware, have the bathroom fitted correctly, and replace with your preferred products at a later stage — the cost of swapping a basin, tap, and toilet fitting is lower than you might expect.

**Mirrored bathroom cabinets, towel rails, and accessories.** These are easy to fit yourself post-completion and are available at a wide range of price points. Developer prices for these items are typically 40–60% above what you would pay at a trade or premium bathroom retailer.

The Mortgage Implication of Paid Upgrades

If you are paying for upgrades separately from the purchase price — as most developers structure them — these payments typically cannot be included in your mortgage. They are paid directly to the developer, usually at or before exchange of contracts, from your own funds. Budget for upgrade costs as a separate cash requirement, distinct from your deposit and your mortgage arrangement.

Where a developer agrees to include upgrades within the purchase price (effectively bundling them into the headline price), they become subject to mortgage lender incentive disclosure requirements. This is worth discussing with your broker if the upgrade value is significant.

Document all agreed upgrades in your Property Passport UK new build passport before work begins — the agreed specification, the agreed price, and photographic evidence of what was delivered. Disputes about what was agreed are common when memories and informal conversations are the only record.