DSH Construction

Garden Room Cost Calculator

Answer the questions below to receive an instant guide price for your project. No personal details are required to view your estimate. Prices shown are based on rates from 1 July 2026, are reviewed every three months, are for projects within a 25-mile radius of Worthing, and are subject to a site survey and formal quotation.

Build your estimate

Complete each step below. Pricing is kept hidden until you generate your estimate.

Step 1: Site Access

Step 2: Distance from Property

10m
1m
50m

Step 3: Garden Room Size

20m²
4m²
50m²

Step 4: Exterior Finish

Step 5: Interior Finish

None

OSB Finish

Plywood Finish

Plastered Finish

Interior Acoustic Cladding

Panelling

Step 6: Services

None

Double Sockets

Spotlights

Outside Lights

Light Switch

Electric Radiator

Metal Faceplates

Brass Faceplates

Step 7: Glazing

None

Windows

Skylights

French Doors

Single Back Door

Bifold Doors