--- title: "How a Kitchen Diner Adds Value to Your Home | Masters Group Brighton" description: "Learn how a design-and-build kitchen diner extension can add up to 15% to your Brighton property value. 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Extensions in conservation areas typically require planning permission." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://mastersgroup.uk/" }, { "@type": "ListItem", "position": 2, "name": "Blog", "item": "https://mastersgroup.uk/blog" }, { "@type": "ListItem", "position": 3, "name": "Kitchen Diner Value" } ] } ] --- 17 Colebrook Road, Brighton, BN1 5JH info@mastersgroup.uk [![Masters Group](/assets/masters-logo-Dn445ZsE.png) MASTERS GROUP ](/) [Home](/)[About](/about) Services Areas [Our Work](/our-work)[Warranty](/warranty)[Reviews](/reviews)[Blog](/blog)[Contact](/contact) [01273 110607](tel:01273110607)[Get Estimate](/contact) ![Open-plan kitchen diner extension in Brighton — adding value to your home by Masters Group](/assets/kitchen-diner-1-B_IAnGL5.webp) - [Home](/) - [Blog](/blog) - Kitchen Diner Value Kitchen Diners # How a Kitchen Diner Extension Adds Value to Your Brighton Home Published 28 December 2024 · 7 min read The open-plan kitchen diner has become the most sought-after feature in Brighton's property market. Estate agents consistently report that a well-executed [kitchen diner extension](/services/kitchen-diners) can add 10–15% to a property's value—often delivering returns that far exceed the investment. ## Why Kitchen Diners Add So Much Value Brighton's housing stock is predominantly Victorian and Edwardian terraces with separate, narrow rooms. Converting these into flowing, open-plan spaces addresses the single biggest limitation buyers perceive. A kitchen diner creates a social hub that modern families demand—a space for cooking, eating, working, and entertaining. ### The Numbers For a typical Brighton three-bedroom terrace valued at £450,000, a kitchen diner extension costing £35,000–£55,000 could add £45,000–£67,500 to the sale price. That's a potential return of 120–150% on investment, making it one of the most financially rewarding home improvements available. See our [Brighton construction costs guide](/blog/how-much-does-a-new-build-cost-in-brighton) for wider cost context. ## What's Involved in a Kitchen Diner Extension? ### Structural Work Most kitchen diner projects involve removing internal load-bearing walls, which requires [RSJ steel beam installation](/services/rsj-steel-beam). Read our comprehensive [RSJ installation guide](/blog/rsj-steel-beam-installation-guide) for details. Some also include a rear extension, which needs proper [foundations](/services/foundations) and may require [planning permission](/blog/planning-permission-guide-east-sussex) depending on size. ### Design Considerations - **Natural light** — Roof lanterns, skylights, and bi-fold doors maximise light in the new space - **Flow** — The transition between cooking, dining, and living zones should feel natural - **Garden connection** — Bi-fold or sliding doors to [decking or patio](/services/decking-patios) areas extend the sense of space - **Underfloor heating** — Particularly effective in open-plan spaces where radiators would interrupt the layout ### Finishes That Maximise Value The kitchen itself should complement the space. High-quality worktops, integrated appliances, and good lighting create the impression of a premium finish. [Professional plastering](/services/rendering-plastering) and quality flooring complete the look. The key is consistency—every element should feel considered and cohesive. ## Real Brighton Examples In Hanover, we converted a cramped galley kitchen and separate dining room into a stunning 7m × 4m kitchen diner with roof lantern. The project cost £42,000 and the property was valued at £65,000 more than comparable unrenovated homes on the same street. In Preston Park, a single-storey rear extension with [raft foundation](/services/raft-foundations) created a 9m kitchen diner with floor-to-ceiling glass. The homeowner reported multiple offers above asking price within a week of listing—all buyers cited the kitchen as the deciding factor. View more examples on our [completed projects page](/our-work). ## The Design & Build Advantage Working with a single contractor from design through to completion—our [design and build approach](/services/kitchen-diners)—reduces costs, speeds up delivery, and ensures the structural and aesthetic elements work together seamlessly. You deal with one team, one timeline, one point of accountability. ### Want a Kitchen Diner That Adds Real Value? We design, build, and finish kitchen diner extensions that transform Brighton homes. Get started with a free site visit. [Get a Free Estimate](/contact) ![Checkatrade 5-star rated building contractors](/assets/checkatrade-RMX7Lkai.webp)![Federation of Master Builders member](/assets/fmb-fkL6zBWX.png)![NICEIC Approved Contractor for electrical work](/assets/niceic-ByVGzec0.png)![Gas Safe Register certified contractor](/assets/gas-safe-8KDBuy0S.png) ### Masters Group Brighton's trusted building contractors. Over 30 years of experience delivering exceptional construction projects across East Sussex. [01273 110607](tel:01273110607) [info@mastersgroup.uk](mailto:info@mastersgroup.uk) 17 Colebrook Road, Brighton, BN1 5JH ### Services - [Kitchen Diners](/services/kitchen-diners) - [New Builds](/services/new-builds) - [Extensions](/services/extensions) - [House Renovations](/services/house-renovations) - [Loft Conversions](/services/loft-conversions) - [Kitchen Renovations](/services/kitchen-renovations) - [Bathroom Renovations](/services/bathroom-renovations) - [Garage Conversions](/services/garage-conversions) - [Foundations](/services/foundations) - [RSJ / Steel Beam](/services/rsj-steel-beam) - [Rendering & Plastering](/services/rendering-plastering) - [Decking & Patios](/services/decking-patios) - [Retaining Walls](/services/retaining-walls) - [Commercial](/services/commercial) - [Waste & Demolition](/services/waste-demolition) - [Project Management](/services/project-management) ### Areas We Serve - [Builders in East Sussex](/areas/east-sussex) - [Builders in Brighton](/areas/brighton) - [Builders in Worthing](/areas/worthing) - [Builders in Eastbourne](/areas/eastbourne) - [Builders in Littlehampton](/areas/littlehampton) - [Builders in Bognor Regis](/areas/bognor-regis) - [Builders in Burgess Hill](/areas/burgess-hill) - [Builders in Haywards Heath](/areas/haywards-heath) - [Builders in Horsham](/areas/horsham) ### Quick Links - [About Us](/about) - [Our Work](/our-work) - [Warranty](/warranty) - [Reviews](/reviews) - [Blog](/blog) - [All Services](/services) - [Areas We Serve](/areas) - [Contact](/contact) © 2026 Masters Group. 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