
Marsden Manor New Build
The Project
Marsden Manor is a five-bedroom Georgian-style replacement home on a mature, tree-lined plot in Prestbury. Planning permission had already been secured when ACDS was appointed in 2022. Our brief was to turn the approved concept into the detailed information needed for construction.
The challenge
Poor ground conditions, a basement and protected trees shaped the technical design. The architectural details, structure, drainage and building services needed to fit together while respecting the approved scheme.
Our role
ACDS brought architectural detailing, structural engineering, mechanical and electrical design, drainage and condition-discharge applications into one appointment. We continued to support the contractor through drawing revisions and site queries.
- Architecture: layouts, elevations, construction details and Building Regulation drawings.
- Structure: basement and reinforced-concrete frame, with a separate steel-framed garage.
- Building services: drainage, ventilation, heating, cooling, electrical loads and exterior lighting.
Project stage: under construction. The gallery shows the proposed design and floor plans; the sections below explain the technical work behind them.
Planning & Heritage
Developing a scheme with permission already in place
The original permission was granted under application 21/6249M. ACDS’s planning role focused on the subsequent discharge-of-condition applications, submitted as the client’s agent.
Application 23/0739D discharged Condition 11, covering a breeding bird survey, and Condition 12, covering an ecological enhancement strategy. The decision notice is dated 16 March 2023. The Biodiversity Enhancement and Management Plan was prepared by ecologist Verity Webster in February 2023, with the approved enhancement features required to remain in place.
Working around protected trees
The conditions programme also addressed ground levels, facing and roofing materials, construction methods and tree protection. The arboricultural information recorded retained trees and their root protection areas, which informed the construction arrangements.
For homeowners taking an approved scheme into its next stage, our guide to discharging planning conditions explains the supporting information a council may require.
Architectural Design
Coordinating the spaces above and below ground
The design drawings show a basement with a gym, steam room, bowling alley and entertainment room beneath the main house. A curved central staircase connects the principal accommodation, with bedrooms and en-suites arranged above.
Our technical work considered these spaces alongside the structure and building services. Structural openings were reviewed against drainage and service routes while the layout was being developed, so changes could be carried through the related drawings.
Keeping the information consistent on site
During construction, we responded to contractor queries and coordinated revisions across the architectural, structural and building-services packages. The client had one point of contact for decisions affecting several disciplines.
Structural Engineering
Foundations and the basement structure
Site investigation identified poor ground conditions that made conventional shallow foundations unsuitable. Sheet piling supported the excavation. The permanent substructure and principal frame were developed in reinforced concrete, including the basement walls, columns and associated capping beams.
Our structural drawings and calculations were coordinated with the architectural arrangement and building-services routes. This brought openings, load paths and basement service penetrations into the same technical design.
A separate structure for the garage
The detached garage was designed as a steel-framed structure to suit its lighter loading and construction sequence.
Our guide to ground investigation for house extensions and new builds explains how site information informs foundation design.
Building Regulations
From design drawings to construction details
ACDS produced the Building Regulation drawings, addressing structural, thermal, drainage and fire-safety requirements. Wall and floor junctions were developed alongside the structural and services information.
Mechanical, electrical and drainage coordination
The services package covered above- and below-ground drainage, mechanical ventilation with heat recovery (MVHR), heating, air conditioning, electrical load calculations and exterior lighting. Coordination continued through to second fix on site.
Project Outcome
Technical design and construction-stage support
Marsden Manor remains under construction. ACDS developed the approved concept into architectural, structural, mechanical, electrical and drainage information, with condition-discharge work and continuing support for the contractor.
The combined appointment allowed a change in one discipline to be reviewed against the others. Openings, service routes and construction details could be considered together as the drawings developed and queries arose on site.
For comparable projects, explore White Lodge Close’s new house and basement pool or our technical design and construction support at Everdon Road.
Already have planning permission? Book a project consultation to discuss the technical drawings, engineering and coordination needed for the next stage.
Written by Zaeem Chaudhary BA (Hons), LLB, MCIAT, Director and Chartered Architectural Technologist at AC Design Solution Ltd.

