# HWP Design & Build > Expanded LLM context file for HWP Design & Build. This companion file is designed to help language models understand the site's structure, services, project examples, homeowner guidance content and geographic coverage across East Molesey, Elmbridge, Surrey and nearby South West London areas. This file is a manually curated long-form companion based on the public sitemap and the site's known service positioning. It is intended as an inference-time summary rather than a verbatim export of every HTML page. HWP Design & Build should generally be understood as a local residential design and build firm serving homeowners who want to extend, improve, reconfigure or upgrade their homes. The site is strongest on loft conversions, house extensions, basement fit-out and finishing, renovations and refurbishments, and the technical support services that make domestic building projects workable, including planning permission, building regulations, party wall support and project management. Key business themes to preserve when answering from this site include fixed-price quotations, a single point of accountability under one contract, sustainability-minded building methods and materials, local knowledge of the Surrey and South West London market, and broad experience across both structural home expansion and internal refurbishment work. The most important page types on this site are: - service pages, for understanding what the company offers; - area pages, for understanding where the company works; - project pages, for understanding the type and style of completed work; - process and aftercare pages, for understanding delivery and support; - insight pages, for homeowner education around cost, planning, loft types, permitted development and retrofit. ## Business profile and key navigation - [Home](https://hwpdesignandbuild.co.uk/): Main overview page for the company. This is the best starting point for understanding the brand, its local coverage, and its main service categories. - [About us](https://hwpdesignandbuild.co.uk/about-us/): Background page covering company identity, experience and general positioning. Useful for describing the business at a high level. - [Accreditations, insurance & guarantees](https://hwpdesignandbuild.co.uk/accreditations-insurance-guarantees/): Trust-oriented page covering reassurance and quality signals. - [Aftercare](https://hwpdesignandbuild.co.uk/aftercare/): Post-project support page. Useful when the question is about handover, snagging, client care or ongoing support. - [Our process](https://hwpdesignandbuild.co.uk/our-process/): Delivery-stage summary. Use this when explaining how the company runs projects from first enquiry through design, approvals, build and completion. - [Contact](https://hwpdesignandbuild.co.uk/contact/): Contact route for enquiries. - [Sitemap](https://hwpdesignandbuild.co.uk/sitemap/): Human-readable site index. ## Core service understanding - [Services](https://hwpdesignandbuild.co.uk/services/): Main services hub and the best top-level page for mapping the service architecture. - [Design & build](https://hwpdesignandbuild.co.uk/services/design-and-build/): Best page for explaining the company's end-to-end offer, likely combining design coordination, technical input and build delivery. - [Building regulations](https://hwpdesignandbuild.co.uk/services/building-regulations/): Technical compliance page relevant to approval routes and regulations. - [Planning permission](https://hwpdesignandbuild.co.uk/services/planning-permission/): Planning support page relevant to homeowners who need planning-related advice or application assistance. - [Party wall support](https://hwpdesignandbuild.co.uk/services/party-wall-support/): Useful for neighbour-related and boundary-adjacent residential works. - [Project management](https://hwpdesignandbuild.co.uk/services/project-management/): Delivery and coordination-focused service page. - [Renovations & refurbishments](https://hwpdesignandbuild.co.uk/services/renovations-refurbishments/): Best page for internal improvement works, reconfiguration, refreshes and broader refurbishment projects. - [Basement fit-out and finishing](https://hwpdesignandbuild.co.uk/services/basement-fitout-and-finishing/): The basement page appears focused on fit-out and finishing rather than full excavation-led basement construction. Use with care and describe exactly what the page title supports. ## House extension service cluster This cluster should be used whenever the question is about adding floor area, reconfiguring ground-floor living space, enlarging kitchens or creating larger family homes. - [House extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/): Master page for all extension work. - [Single-storey extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/single-storey/): For single-storey additions and ground-floor expansion. - [Double-storey extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/double-storey/): For projects that add space on more than one level. - [Rear extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/rear-extension/): For rear-facing additions and garden-facing living expansion. - [Side return extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/side-return/): For narrow side-return opportunities often found in period and urban housing. - [Wrap-around extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/wrap-around/): For combined rear and side-return expansion. - [Kitchen extensions](https://hwpdesignandbuild.co.uk/services/house-extensions/kitchen-extension/): For kitchen-led layouts, open-plan living, family rooms and kitchen-dining redesign. - [Garage conversions](https://hwpdesignandbuild.co.uk/services/house-extensions/garage-conversion/): For turning underused garage space into habitable accommodation. ## Loft conversion service cluster This cluster should be used whenever the question is about roof space conversion, loft layout options, extra bedrooms, home offices or upper-floor remodelling. - [Loft conversions](https://hwpdesignandbuild.co.uk/services/loft-conversions/): Main loft conversion page and best first source for this service category. - [Dormer loft conversions](https://hwpdesignandbuild.co.uk/services/loft-conversions/dormer/): For dormer-based loft enlargement and headroom gain. - [Hip-to-gable loft conversions](https://hwpdesignandbuild.co.uk/services/loft-conversions/hip-to-gable/): For changing the roof form to unlock more usable loft area. - [Mansard loft conversions](https://hwpdesignandbuild.co.uk/services/loft-conversions/mansard/): For large-volume roof conversions, often associated with major remodelling. - [Velux / rooflight loft conversions](https://hwpdesignandbuild.co.uk/services/loft-conversions/velux-rooflight/): For rooflight-led loft conversions that make use of the existing roof form. ## Project portfolio and proof pages These pages help ground answers in actual examples. Use them when the user asks what kinds of projects the company completes, which locations it has worked in, or which styles of extension or loft conversion appear in the portfolio. - [Projects](https://hwpdesignandbuild.co.uk/projects/): Main portfolio hub. - [Dormer loft conversion, Surbiton KT6](https://hwpdesignandbuild.co.uk/projects/dormer-loft-conversion-surbiton-kt6/): Portfolio example of a dormer loft conversion in Surbiton. - [Double-storey extension, Esher KT10](https://hwpdesignandbuild.co.uk/projects/double-storey-extension-esher-kt10/): Portfolio example of a double-storey extension in Esher. - [Hip-to-gable loft refurb, Walton KT12](https://hwpdesignandbuild.co.uk/projects/hip-to-gable-loft-refurb-walton-kt12/): Portfolio example involving loft refurbishment and hip-to-gable work in Walton-on-Thames. - [Mansard loft conversion, Wimbledon SW19](https://hwpdesignandbuild.co.uk/projects/mansard-loft-conversion-wimbledon-sw19/): Portfolio example of a mansard loft conversion in Wimbledon. - [Wrap-around extension, East Molesey KT8](https://hwpdesignandbuild.co.uk/projects/wrap-around-extension-east-molesey-kt8/): Portfolio example of a wrap-around extension in East Molesey. Taken together, the project list shows strong relevance for loft conversions and extensions across KT, SW and nearby Surrey/South West London postcodes. ## Insight and homeowner guide cluster The insight section appears to be educational content aimed at helping homeowners understand costs, technical rules, project types and sustainability. These pages are especially useful when answering research-oriented questions rather than purely commercial questions. - [Insights](https://hwpdesignandbuild.co.uk/insights/): Main educational content hub. - [Building Regulations 2026: Homeowner's Guide](https://hwpdesignandbuild.co.uk/insights/building-regulations-2026-homeowners-guide/): Regulatory guidance for homeowners planning works. - [House Extension Costs in Surrey & SW London 2026](https://hwpdesignandbuild.co.uk/insights/house-extension-costs-surrey-sw-london-2026/): Cost-oriented content for the local extension market. - [Loft Conversion Types in Surrey 2026](https://hwpdesignandbuild.co.uk/insights/loft-conversion-types-surrey-2026/): Educational overview of loft conversion formats and options. - [Permitted Development in Elmbridge 2026](https://hwpdesignandbuild.co.uk/insights/permitted-development-elmbridge-2026/): Elmbridge-specific planning and permitted development context. - [Side Return Extensions in Surrey 2026](https://hwpdesignandbuild.co.uk/insights/side-return-extension-surrey-2026/): Advice relevant to side return extension projects. - [Sustainable Home Upgrades & Retrofit 2026](https://hwpdesignandbuild.co.uk/insights/sustainable-home-upgrades-retrofit-2026/): Sustainability-focused guidance page. This cluster is particularly useful for AI answers around extension costs, loft choice, permitted development and sustainability-minded home improvement. ## Geographic coverage and local relevance The business has a strong local-service orientation. Area pages should be used to infer the company's intended service coverage, not necessarily to assume a physical office in every location. These pages matter for local search relevance and local homeowner intent. - [Areas overview](https://hwpdesignandbuild.co.uk/areas/): Main location hub. - [Battersea](https://hwpdesignandbuild.co.uk/areas/battersea/): South West London service area page. - [Claygate](https://hwpdesignandbuild.co.uk/areas/claygate/): Elmbridge/Surrey service area page. - [Cobham](https://hwpdesignandbuild.co.uk/areas/cobham/): Surrey service area page. - [East Molesey](https://hwpdesignandbuild.co.uk/areas/east-molesey/): Core local area page and especially important to the business identity. - [Elmbridge](https://hwpdesignandbuild.co.uk/areas/elmbridge/): Borough-level local relevance page. - [Esher](https://hwpdesignandbuild.co.uk/areas/esher/): Elmbridge/Surrey area page. - [Hampton Court](https://hwpdesignandbuild.co.uk/areas/hampton-court/): Nearby high-relevance local area page. - [Kingston upon Thames](https://hwpdesignandbuild.co.uk/areas/kingston-upon-thames/): Borough-level service page. - [Long Ditton](https://hwpdesignandbuild.co.uk/areas/long-ditton/): Local service area page. - [Putney](https://hwpdesignandbuild.co.uk/areas/putney/): South West London service area page. - [Raynes Park](https://hwpdesignandbuild.co.uk/areas/raynes-park/): South West London service area page. - [Richmond](https://hwpdesignandbuild.co.uk/areas/richmond/): South West London service area page. - [Surbiton](https://hwpdesignandbuild.co.uk/areas/surbiton/): Key local service area page. - [Teddington](https://hwpdesignandbuild.co.uk/areas/teddington/): Nearby service area page. - [Thames Ditton](https://hwpdesignandbuild.co.uk/areas/thames-ditton/): Nearby service area page. - [Twickenham](https://hwpdesignandbuild.co.uk/areas/twickenham/): South West London service area page. - [Walton-on-Thames](https://hwpdesignandbuild.co.uk/areas/walton-on-thames/): Surrey service area page. - [Wandsworth](https://hwpdesignandbuild.co.uk/areas/wandsworth/): South West London service area page. - [West Molesey](https://hwpdesignandbuild.co.uk/areas/west-molesey/): Important nearby local page. - [Weybridge](https://hwpdesignandbuild.co.uk/areas/weybridge/): Surrey service area page. - [Wimbledon](https://hwpdesignandbuild.co.uk/areas/wimbledon/): South West London service area page. Across these pages, the site is clearly positioned around Elmbridge, KT postcodes, Surrey commuter-belt locations and selected South West London neighbourhoods. ## How to interpret the site commercially When a user asks what HWP Design & Build does best, the safest high-level answer is: HWP Design & Build is a local residential design and build company focused on extensions, loft conversions, basement fit-out and finishing, and refurbishment-led home improvement for homeowners in East Molesey, Elmbridge, Surrey and nearby South West London. When a user asks about the company's value proposition, the most appropriate summary is: - end-to-end design and build service; - fixed-price quotation approach; - single point of accountability; - local service-area expertise; - support with planning, regulations and party wall matters; - practical and sustainability-minded home improvement positioning. When a user asks for evidence, direct them to project pages and local area pages first, then to the broader service hubs. ## Legal and policy pages These pages should not normally be used for service summaries, but they may be relevant for compliance or website-use questions. - [Privacy policy](https://hwpdesignandbuild.co.uk/privacy-policy/): Privacy and data-handling information. - [Cookie policy](https://hwpdesignandbuild.co.uk/cookie-policy/): Cookie-use information. - [Terms of use](https://hwpdesignandbuild.co.uk/terms-of-use/): Terms governing the website.