BUILD

A dedicated leader for your project to coordinate specialists, enforce deadlines, and ensure quality control.

For commercial Construction commissions: hospitality, retail, and multi-unit development.

What We Do

Sovran's build service is run by people who have been on sites. Every project is managed with a dedicated site lead, a fixed programme, and a specification locked before work starts. We build across London and the Home Counties: extensions, conversions, full renovations, landscaping, and pools; to the standard the architecture and the investment deserve.

We coordinate specialist trades, enforce contractual deadlines, and maintain rigorous quality standards at every stage. Our approach eliminates the common frustrations of construction: missed timelines, budget overruns, and communication breakdowns.

With milestone-based payments and airtight contracts, your investment is protected at every step. We don't just build structures; we build trust.

Subservices

Built across every scope.

Extensions

Built as part of the house.

Sovran builds rear, side return, wraparound, and double-storey extensions across London and the Home Counties. Each project begins with architecture, the connection to the existing house, the ceiling heights, the glazing specification, and the quality of finish at every junction between old and new. Every extension is architecturally resolved as part of the house, seamlessly integrated at every detail from structure to finish.

ScopeRear · Side return · Wraparound · Double storey

Typical Timeline12–28 weeks depending on scope

Applicable toResidential properties across London & Home Counties

Loft Conversions

The floor that was already there.

Sovran designs and builds loft conversions with the same architectural rigour as every other floor in the house. Dormer, hip-to-gable, and mansard configurations across London and the Home Counties. Party wall agreements handled. Structural design coordinated. Planning secured where required. One detail most homeowners discover late: under Approved Document B, converting a two-storey house creates a three-storey dwelling, which triggers a protected staircase requirement with fire doors at every level. Sovran builds this into the design from the first drawing, so it never becomes a surprise late in the programme.

ScopeDormer · Hip-to-gable · Mansard

Typical Timeline10–18 weeks

Applicable toDetached, semi-detached & terraced houses

Basement Conversions

Below ground. Above expectations.

Sovran has delivered basement conversions across London boroughs where soil conditions, neighbouring properties, and planning constraints make the process genuinely complex. Structural engineering appointments, party wall procedures, and building control sign-off are managed as part of the project. Fully coordinated from start to finish. All waterproofing is specified to BS 8102:2022 — the British Standard for protecting below-ground structures. London clay and high-water table conditions on many sites require a combination of Type A, B, and C waterproofing systems, and the specification is made on a property-by-property basis following a site investigation.

ScopeNew excavation & existing cellar conversion

Typical Timeline16–28 weeks

Applicable toLondon residential & prime Home Counties

Full Renovations

Stripped back, handed complete.

Some houses need more than a refresh. Sovran takes them back to brick, reconfiguring layouts, replacing services, and finishing every room to a high-end standard. Structural work, replastering, rewiring, replumbing, joinery, and fit-out managed as a single project with a dedicated site lead. Every decision is made before the first wall comes down, so the project moves without interruption from demolition to handover.

ScopeStructural, services & full finish

Typical Timeline16–40 weeks depending on size

Applicable toPeriod & modern residential properties

Landscaping & Swimming Pools

Beyond the back door.

An outbuilding is only worth building if it is worth spending time in. Sovran designs and builds garden rooms, home offices, pool houses, and outbuildings that are insulated, serviced, and finished to the same standard as the main house. Many fall within permitted development. Those that don't, we take through planning. The brief can be as simple as a quiet office or as involved as a full entertainment suite with its own kitchen and bathroom, either way, the structural and architectural quality is the same. Swimming pools are specified with full plant room integration, automated cover systems, and landscaping designed properly and under the necessary regulations from the first drawing.

ScopeLandscaping, pools, outbuildings & garden rooms

Typical Timeline8–24 weeks depending on scope

Applicable toAll residential projects with external space

Our approach

Pre-Construction Planning

Detailed scheduling, procurement strategies, and risk assessments are established before any ground is broken. We define milestones, appoint specialist contractors, and set quality benchmarks.

Site Preparation & Foundation

Groundworks, drainage, and structural foundations are executed with precision. Our site managers enforce tolerances and conduct daily inspections to ensure everything is built to specification.

Structural Build

The superstructure rises under constant supervision. Steelwork, masonry, roofing, and weatherproofing are coordinated to maintain momentum and quality throughout.

Interior Fit-Out

Mechanical and electrical first fix, plastering, joinery, and finishing trades are sequenced for maximum efficiency. Each stage undergoes sign-off before the next begins.

Final Inspection & Handover

A comprehensive snagging process, building control sign-off, and meticulous handover pack ensure you receive a finished space that meets every specification and standard.